FUNDAMENTAL TECHNIQUES OF PLASTrC SURGERY AND THEIR SURGICAL APPLICATIONS This book is protected under the Berne Contention It may not be reproduced by any means in tshole or in part tetthout permission Application t-ith regard to reproduction should be addressed to the puhhthtts Copyright E & S Ljvincstosx Ltd , 1962 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY AND THEIR SURGICAL APPLICATIONS BY IAN A. MCGREGOR M.B., r.R.C.S.fllng ), r.R.F.P.S.(GIas.) Consultant Plastic Surgeon. Glasgow Royal Infirmary. Lately Consultant Surgeon, Casualty Department, Glasgow Royal Infirmarj- FOREWORD BY SIR CHARLES ILLINGWORTH C.B.C., M.D., Ch.M., F.R.C.S (Ed.), T R.F.P.S (Glas.) Hon. F ACS. Hon. T.R.C.S (Eng ) Regius Professor of Surgery, University of Glasgow. SECOND EDITION E. & S. LIVINGSTONE LTD. EDINBURGH AND LONDON 1962 F rst Edition Second Ed tion PRINTED IN CREAT BRITAIN FOREWORD Like other surgical specialties, Plastic Surgery originated through the efforts of a small group of enthusiasts who, by utilising a particular refinement of technique, soon raised the standards of surgical craftsmanship within a narrow field to a high pitch of efficiency Then came the war, and the techniques primarily evolved for hiding facial blemishes and correcting \isible deformities were applied with immense success to the treatment of wounds in general Since then, as a natural sequel, plastic surgeons have widened still further their range of interests, notably in casualty work, in hand injuries and in bums In doing so, they have implicitly ceased to regard themselves as a class apart, exclusive authorities in a chosen field, but rather as expert adusers and helpful collaborators in a wide range of surgery Mr McGregor is emphatically of this latter class, trained in the Glasgow School of Plastic Surgery, broadened in experience by the responsibility of a busj casualty department, and with a particular interest in the surgery of the hand His book reflects these interests and this experience being designed not for specialists but for all those who are concerned with the healing of wounds Its approach is essentially practical, dealing as it does with the choice of incisions with stitchcraft, avoidance of ugly scars, methods of skin grafting, and similar matters, and with their apphcation to casualty surgery, orthopaedics and general surgery It will assuredly receive a warm welcome Glasgow, i960 C F W Illingworth PREFACE TO THE SECOND EDITION Thu a second edition should be needed so quickly is a pleasant confirmation of the hope expressed in the preface to the first edition that it would fill a real gap in the surgical literature The opportunity has been taken to revise the text but the absence of significant change in plastic surgical technique over the past two years has made radical alteration unnecessary The most obvious difference in this new edition is the introduction of a chapter on maxillo facial injuries and the simultaneous deletton of the more complex eyelid instructions Maxi l!o facial injuries might be regarded as outside the book, s original terms of reference but my justification for including them is firstly that many reviewers regretted their exclusion from the first edition and secondly that in this countrv at least they do come into the province of the plastic surgeon I have considered them from the viewpoint of the surgeon rather than the dentist and given only enough detail of the more elaborate dental techniques to make the underlj mg principle understandable Particular prominence has been given to diagnosis and general management with detailed consideration of those procedures which the surgeon is likely to carry out himself In this chapter I have found m\s.elf forced to use the term Gunning splint and though I realise that this eponym is open to all the objections mentioned in the preface to the first edition I have_been unable degmte much effort to think up a reasonablv concise alternativ e Tresh techniques introduced are those of exposed grafting and the neurovascular island flap of Littler and the problem of skin loss in association vv ith fractures has been discussed at greater length On this last topic I have benefited in discussion from the wide experience of Mr Peter London of the Birmingham Accident Hospital and I am most grateful to him The suggestion was made by a reviewer that con sideration of the applications of plastic surgery techniques might use fully be extended to include specialities not at present covered B\ that time however this new edition was already m an advanced state of preparation but the idea remains ven much in my mind as a potential development in the future The new subject matter has lent itself to the use of line drawings PREFACE TO THE FIRST EDITION Plastic surgical methods are being used increasing!) often by surgeons who hate recen ed no formal training in plastic surgery and who are looking for guidance on the basic techniques Advanced textbooks of plastic surgery are apt to pass over those elementary but nonetheless fundamental methods while the sections on plastic surgery m textbooks of surgery describe its scope and results without giving enough detail of actual technique to be of practical use This book I hope may help to fill the gap The first part describes the basic techniques of plastic surgery in detail and the second considers their application to the situations which surgeons in other specialties are likely to encounter A difficulty in the second part has been that of deciding what material to include and what to leave out The deciding factor generally has been to include such topics and techniques as it was felt a surgeon m the particular field might reasonably wish to deal with himself without necessanlv referring the patient to a plastic surgeon The book makes no atteitipt to describe all possible methods of repair and reconstruction To include a multiplicity of methods in a book of this nature would merclv confuse and I have preferred instead to describe those methods which I hive found work best tn practice In discussing the baste techniques I hav e tried to stress the difficulties of each and to describe the complications how they can be avoided and how to cope with them when they do occur I have endeavoured too to bring out the principles of the various methods in the hope that an understanding of these principles may weld the technical details into a coherent, rational pattern and prevent them from being a mere jumble of empirical instructions A difficult decision has been whether or not to use the eponyans in which plastic surgery abounds Eponyans arc an essential part of everyday surgical shorthand and they recall men who have stood as signposts along the way of an advancing specialty Rut often they lack precise meaning and they are liable to cause confusion firstly because they sometimes have different meanings in different countries secondly because they are frequently used loosclv so that in some instances a name has even come to be applied to a procedure different from that X PREFACE TO THE FIRST EDITION described by its owner The Thiersch graft is an example of this latter categorj being nowadays applied to a graft of quite different thickness from that originally described b\ Thiersch For these reasons I have regretfully avoided eponyms altogether References have purposely not been introduced into the text Instead I have listed a few papers and monographs at the end of each chapter under suitable subject headings to provide a starting point for anyone wishing to pursue a particular subject further I must acknowledge my debt to many who have helped me in pre paring this book To Professor C F W Illingw orth who encouraged me at the outset in its writing and Mr J S Tough who was responsible for my training in Plastic Surgery and gave me free access to the photo graphic records of the Unit I am deeply grateful I am greatly in the debt of Mr Douglas R k Reid for his constructive criticism of the text and for the pains he has taken to make it as lucid as possible without sacrificing brevity in the process To Professor Roland Bames and Dr J C J Ives who read and criticised parts of tl e text I express my thanks The illustrations are all important in a book largely concerned with surgical techniques Mr Rob n Callander made all the drawings and I find it difficult to convey fully the care and trouble he has taken to portray visually what I wished to express Any usefulness which the book may have is due in no small way to his illustrations The photographs are the work of Mr T Meikle and Mr R Macgregor of the Plastic Surgery Units at Ballochmyle Hospital and Glasgow Roval Infirmary Mr R McLean Department of Medical Illustration Western Infirmary Mr P Kelly Photographic Department and Mr E Towler Department of Surgery Glasgow Royal Infirmary For the care and trouble which each has taken I am most grateful I am also indebted to Messrs Chas F Thackray for permission to use dlustrations of their instruments The typing and retyping of the manuscript was carried out with patience and good humour by Airs A M Drummond I should like lastly to record mv thanks to Mr Charles Macmillan and Mr James Parker of Messrs E and S Livingstone for the advice and help which they have given me throughout Tan A McGregor. Glasgow i960 CONTENTS PART ONE THE BASIC TFCHNIQUES I Wound Care 3 II IheZplasta 40 III rRrt Skin Grafts I\ Flaps Pedicles and Tubes 95 PART TWO 1 HE SURGICAL APPLICATIONS V General Surgera VI Orthopaedic Surcera ,8! VII Hand Slrgera ^ VIII SuRGCRA OF THE E\ELIDS __ . 1 \ AIaxillo Facial Injuries 2 . lNI>r ' . 279 M PART ONE THE BASIC TECHNIQUES CHAPTER ONE Wound Care G IVEN accurate skin approximation and freedom from infection epidermal healing occurs extremelj rapidlj but the healing processes which go on in the dermis are much more prolonged and as far as the ultimate appearance of the resulting scar is concerned far more important The transition from fibrin clot to the quiescent relatively avascular scar takes place relativeh slowly over a period of months Initial!) the scar is often red and the immediate surroundings are frequentl) indurated, almostvvooden, in consistencv Gradual!) the induration and redness diminish and disappear Ieav ing a soft scar, paler than the surrounding skin The degree of redness and induration is extremel) variable as is the time taken for the reaction to subside, 3 months to almost a jear are the extremes The appearance of a scar can be expected to improve up to a ) ear and at least the greater part of the reaction should be allowed to subside before secondarj rev ision is considered This graduall) diminishing induration constitutes normal progress to quiescence Such a sequence is b) no means invariable and instead the'fibrous tissue of the dermis maj become grossl) hypertrophic giving rise clintcall) to a raised, red, hypertrophic scar or when the reaction is more florid to a keloid scar, but these conditions are sufficiently important to merit separate consideration During the healing phase the tensile strength of the wound graduall) increases The sutures take what little strain there is until the) are remov ed and if a scar is going to stretch thereafter it does so graduall) over the next feu weeks Support of the wound for as long as is feasible appears to have little effect Naturall) a scar is most ltkel) to stretch badl) when skin has been lost and there is obvious wound tension, but often stretching occurs w’nen lucre is wo apparent xntsam xrfnet ‘Asm Yntfi ifmvnig from the normal elasticit) of the skin 3 4 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERA 3Se\ertheless m many parts of the bod\ the direction of the scar appears to influence the amount of stretching which takes place and the directions which result in minimal stretching can be systematised into lines of election for scars Langers lines which map the direction of fibrous tissue bundles in the dermis have been described as indicating such lines of election but The I nes of elect on for scars n the face and neck sho n by the pattern of wruikl ng and their relat on to the direct on of the underlj ng muscles critical examination of the diagrams of Langer s fines shows tf at more often than not they bear no relation to the actual line of election and it would appear that any coincidence of the two sets of lines is entirely fortuitous Unfortunately most surgeons use the term Langer s line when in actual fact they mean the line of election and the term as a result dies extreme!* hard In the face and neck the lines of election are at right angles to the direction of the resultant pull of the muscles of facial expression and with the loss of elasticity that goes with ageing they become set into a pattern of wrinkles (Hg i, i) In the ucmity of the flexures the lines of election are parallel to the skin creases which are clearly present in the region of the flexure In the skin surfaces between the flexures the eudence for a WOUND CARE 5 specific line of election is less clear-cut and in any case the placing of an incision there is determined more often by considerations other than the e\ entual cosmetic result of the scar In general then a scar should be placed m a line of election where at all possible At the outset it must be said that there is great and uncon trollable individual variation in healing characteristics and this sets a limit to what can be achieved bv pure surgical technique It is impossible to get a perfect scar alwavs but to produce the best result in a given set of circumstances a meticulous technique is essential and it must be emphasised that failure in a single aspect is enough to give a poor result however careful all others may be The factors concerned in wound care are 1 Placing the Scar 3 Stitchcraft 2 Preparing the W ound 4 Post-operatn e Care PLACING THE SCAR When the onus of placing the scar lies with the surgeon the principles to be followed in selecting site and direction are Use of natural lines The scar should be placed in the line of a wrinkle or at least parallel to it (Fig 1, 1) so that in course of time it will settle in to look like another wrinkle Failing this the line of election for the particular area should be chosen Where there is a natural junction to distract the eye from a scar this mav be used In approaching the parotid for example the best scar line results from an incision along the junction of ear and masseteric region Placing the scar where it will not be seen Theobwous examples are inside the hair line or in the eyebrow and these are the only sites where an incision which is not perpen dicular to the skin surface is permissible Instead the incision should be made parallel to the hair follicles to avoid the hairless scar which sectioning hair follicles would cause The eyebrow incision is especially useful m appro iching a dermoid cyst of the lateral canthal region and the mv tsible scar more than compensates for the added technical difficulty of such an indirect approach 6 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCERY Use of the Z-pIasty The use of the Z-plast) m correcting contractures js discussed in Chapter Two It has how ev er a a erj definite place as an adjunct to other methods designed to minimise scars The Z-plast\ is not recommended for use in the primary treatment of wounds resulting from trauma unless the wound approximates m cliaracter to a surgical incision and the circumstances are otherwise ideal It The tension directly across a nound converted by Z-pUstics into a shearing strain talen by the transverse limb of each Z should rather be reserved for use in an) subsequent revision of the scar The Z-plast) is carried out b) transposing the flaps resulting from two side cuts made at 6o° angles on each side of the line of excision (Fig 1,9) and it has the following attributes and uses Redistribution of tension Frequentl) following an operative procedure a wound has to be sutured under some tension and it is in such circumstances that severe stretching of the resulting scar is prone to occur Various procedures have been described as helping to av otd such an occurrence and of these the Z-plast) is probably the most valuable where it can be used (Fig x, 2) Its effect is to break up a long scar with tension directly across the wound into multiple short scars in which tension has been redistributed in such a fashion that the greater part is taken as a shearing strain b) each transverse limb of the Z-pfasties It WOUND CARE 7 would appear that shearing strains cause much less stretching of the scar than does straight tension Equalisation of tcotind length It happens not infrequent!) that the two sides of a wound to be sutured are unequal in length as m excision of a “ comma shaped ” scar While the taking of unequal bites of either side can partially equate the lengths there is a definite limit to this The Z-plast) can then be used to reduce the discrepancy in length (Tig x, 3) Breaking the scar line In most situations a scar tends to be notice- able if it is long and straight However narrow it ma) be the e>c takes it for the scar that it is \\ ith Z-plast) insets on the other hand the appearance (Fig 1, 4) is of short scars interspersed with unobtrusive cross limbs giving at best a series of unconnected short scars with virtu- al!) imisible cross limbs or at worst a zig-zag scar which tn practtce is far less conspicuous than the original straight scar This “breaking of the line” is a Equalising the lengths of the two most important factor ,n scar cam- EJSSS? ouflage and the more accurately the cross-limb is placed in a good line of election or actual wrinkle the less conspicuous will it be and the better the end result \\ here a scar crosses the nasolabial fold the cross limb of the Z should alwi)slie in theline of the fold , likcw ise Z plasties to fit the forehead wrinkles are often worth while to break a \erticil forehead scar (rig 4, 30) When it is in a line of election and particular!) in a wrinkle a long straight scar as in th)roidectomy ma) of course be entirely acceptable, but in the face where the problem has its real rele\ance there must be few long straight scars which fad to cross a line of election at some point and which would not be impro\ed b) incorporating a 7 plistj Ere r, 3 The use of ^-plasties in reusing a bridle scar crossing a concaut) induce such a scar to sit into the concax it\ is to place a 7 . (r ig x, 5) at the deepest part of the hollow (ste also I ig 5, 1 6) The cuntus’ sear This max present a difficult problem and is seen in its worst form when a trapdoor of skin has been lifted ‘the recurrence af trip-door tarring fallow trtg timpte exetston and sulure and mtrclx resutured in place Contraction of the resulting scar causes elexation of the tissue within its concaxitx Seen later it imx lie assumed, not unreasonablx , to be the result of bad suturing hut excision of the scar, trimming of the flap quite flat, \%OUND CARE II and resuture with the greatest of care only results in recurrence of the original state of affairs within a matter of weeks (Fig i, 6) The solution of the problem lies m the judicious use of the Z plastj to break the cun e of the scar (Fig z, 7) Where there is a tendencj 1 side of a scar it can usual I j be corrected bj incorporating a Z plastj when the scar is being excised (Fig 1, 8) Siting the Z-plasty To place a Z-plastj in thebest line requires sound jud^Pejit and depends to some extent on the purpose which it to' sen e In general the resulting trans ^ erse limb across the lme of the scar should lie in a line of election or m the line of a wrinkle where one exists When the purpose is to sit a scar into a hollow the trans \erse limb should be placed to lie at the deepest part of the hollow Having decided the best line for the Z the problem of placing the appropriate incisions still remains overriding of the tissues of one Skin markinq of intended transverse 1 mb Triangles constructed around intended transverse limb Selection of Z plasty cuts Transposition of Z plasty flaps Completion of Z plasty leaving transverse limb m intended line If mistakes are to be pic x 9 avoided the planning of such a ^ ,*, h „ d „ r , , ng , z. pI „ ty Z-plastj must be regarded as a formal procedure (Fig 1, 9) to be marked out on the skin before anj incision is made When the best trans\erse line has been selected it should be marked on the skin with Bonney s Blue (Pig Tmctorium B P C ) If in planning the actual Z-plastj incisions each is made to end on this line transposition of the flaps wall automaticall) leave the trans\erse limb ljang along the lme as planned With the desired trans\ erse line marked on the skin an 12 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCFRV equilateral triangle should be draw on each side of the scar into which the Z-pIast) is being placed so that an apex of each triangle is on the transv erse line already marled Of the two possible pairs of Z-plastj flaps outlined in this wj} the appropriate one can be chosen m the knowledge that as each incision ends on the transverse skin marking transposition of the flaps will place the transverse scar along the line intended This method works particularh well when the wound is perpendicular or nearlj so to the line of election or wrinkle for then the points are practical!} directl} opposite and the tnangles are easy to construct As the wound direction becomes closer to the line of election it becomes increasing^ difficult and eventuallv impossible to get the transverse limb to lie in the lint of election and a compromise must be reached which makes it as near to the line as possible It takes courage for the inexperienced surgeon to wilfully increase the length of a wound alreid) present b\ incorporating one or more Z plasties but it is a technique with which an)ont dealing with facial surger) should be familiar One seldom has cause to regret a Z plasty but rather failure to use one PREPARATION 1 Or THE WOUND When a wound is alread) present as a result for example of trauma it is still important to consider how and to what extent it transgresses the principles of placing a scar which have been formulated and whether it can be modified better to fit those principles When as often happens it proves impossible or undesirable to make it conform as a primary manoeuvre because of potential infection poor blood supply of wound margins skin damage etc the aim then is to prepare it for the time when at a later date it can be modified to conform W ounds can be regarded as traumatised when the wound edges have been apprcciabl) damaged or non traumatised when the wound edges contain minimal damaged tissue as in surgical!} created wounds It is the presence or absence of damaged tissue which de termtnes whether or not a wound should be excised Under nil circumstances it is axiomatic that all dirt and other foreign material must be removed bv excision if neccssar} In the face where WOUND CAKE the cosmetic result is of paramount importance the problem of e\cmonal policy is more difficult than elsewhere and there are two approaches to the problem If damage is minimal the wound maj be excised so comerting it to an atraumatic type in an attempt to get a final result primarily 14 fundamental techniques of plastic surgery further surgery in the knowledge that a good scar cannot be expected from the healing of such a wound This policy permits the salt age of tissue which might otherwise be excised tissue w hich may be valuable later A conservative policy is obligator} m the care of severe facial soft tissue trauma where it is seldom possible to achtc\e final reconstruction at the primary operation and where the o\er riding object must be to replace structures m their normal position and suture them there The secret in suturing an irregular wound is first to look for landmarks on either side to match 'WjtJj mo points which definitely fit sutured together fresh parts of the jig saw fall into place until enough ke} points ha\e been matched to allow the intervening sutures to be placed readil} Time spent fitting a jig saw of tissue accurately at the time of original suture is never wasted since such a chance comes only once and if it is missed the results can be disastrous Although it ma} be quite obvious that Z plasties will be required later these should seldom be used at the pnmar} operation An added difficulty arises when there has been actual loss of tissue and the principle which then go\erns practice is to replace surviving tissues in their correct anatomical position so tli 3 t the defect can be properl} displa}ed and assessed in terms of tissues lost While the experienced plastic surgeon ma} legitimately carry out a primary definitive repair in sucli circumstances the less experienced surgeon should be more modest and if the defect cannot be closed by direct suture he should apply a split skin graft in most instances A full thickness defect opening into the mouth which cannot be closed without undue distortion calls for suture of skin to mucosa These temporary measures have at least the merit of allowing rapid healing with minimal scarring and leave conditions suitable for a definitiv e repair subsequently The common errors in treating wounds at this stage are 1 Failure to remove all dirt from the wound feav mg an area of tattooed scarring (Fig t, i x) which is usually difficult and often impossible to eradicate later 2 The production of a scar with gross suture marks (Fig i, 12) Such a wound would often do better to heal by WOtmn CARE 15 granulation for the resulting scar however ugly can always be excised whereas the presence of suture marks makes excision infinitely more difficult 3 Failure to suture the various wound edges in the precise position relative to one another which they occupied before Fic 1 11 Examples of tattooed scarring result ng from fa lure to remo\e ingrained d rt and grit from the wound at the time of the injury At th s late stage such tattooing is \ irtualljr imposs ble to erad cate completely the injury (Fig I, 13) The resulting irregularities are especially obvious when the lip margin eyelid eyebrow or nostril ire the structures which have been imperfectly matched It is often important to know when a piece of traumatised tissue can safely be con sen ed or v\ hether it must be excised and in deciding this the important factor is vascularity Blanching on pressure and the presence of dermal bleeding are both evidence of an active circulation In doubtful cases the anatomy of the region together with the size and content of the pedicle help in making a decision (I lg x, 14) In the face and scalp where the problem Tic i# 13 Examples of irregularities of c>eltd and mouth resulting from fa lure to suture matching points together accurate! 5 arises most acutelj the vascular abundance is on the side of sur\ual and flaps should not hghtlv be excised Indeed in the scalp a flap with anv attachment at all should be consen ed j8 FVSDAMESTAL TECHf. fQU£S OF PLASTIC SIRGERV skin sterilisation which doe* not stain the skin or tissues Mer- thiolate and iodine, suitable otherwise, should not be used, satisfactory agents are cetrimide and chlorhexidinc (“Hihitane”)’ In preparing a wound for suture the wound edge should he \ ertical if the best scar result is to be achieved and as a corollary of this surgical incisions must also be made \ ertical Accurate suturing is also very much easier when the faces of tissue brought together are of the same thickness If the w ound is being sutured without tension all that may be required to prepare the skin edge* is to undercut each edge for inch to allow slight w ound eversion When there is tension steps can be taken in preparing the wound to eliminate it oral least prevent its worst consequences by * Undercutting (Fjg j, J5) This allows a degree of advancement of the shm In undercutting, level is important and depends on the vascularity of the flaps and on the depth of important nerves On the face, and it is the area where the problem most often arises the appropriate lev el tsjust deep to the dermis, for any undercutting must be superficial to the lev el of the branches of the facial nerve The blood supply is excellent in the head and neck and necrosis is unhkelv to follow undercutting at even such a superficial level In the scalp the plane between galea aponeurotica and pericranium is used and multiple relaxation incisions in the deep surface of the galea aponeurotica giv e a little added advancement Flacwhere it is wiser if undercutting has to be more than minimal to use the plane of cleavage between superficial and deep fascia Z-plasty The use of the Z-pfasty in this situation has alreadi been discussed and when the method is employed it is mturallv used m conjunction with undercutting If it is clear that even with maximal undercutting closure will not be achieved the usual procedure especially m the case of a traumatic wound is to use a free skin graft On occasion a more complicated flap procedure may be feasible but as a general rule it is not a good method for emergenev use The free skin graft is safer and simpler STITCHCRAFT W hen the surgeon is aiming to make hts scar as inconspicuous as possible the actual suturing of the wound becomes an extrcmch precise procedure and good results cannot be expected unless the suture materials, the needles and the instruments are suitable WOUND CARE 19 FACE Level of Undermining Undcrmin nq Level of with Scissors Undermining LIMBS & TRUNK SCALP Fic i, is The methods and levels of underm mng 10 the face limbs and trunk and scalp 20 FUNDAMENTAL TECHNIQUES Of I'LASTIC SLROFR) Suture Materials There is considerable \ anation in the properties of the difTerent suture materials and these properties determine which particular material is the appropriate one in a given situation The commonl) used threads are Braided silk. This material js eas> and pleasant to work «ith,)« the surface is sufficient!) rough for knots to hold reisonabh well especially with an initial double turn Itisnormall) supplied water proofed and this is said to reduce reaction around the suture holes One ot its defects is a rclativelj low tensile strength and if much tension is needed, as for tie over sutures, it is apt to break in the sizes used, namelj 3-0 and 5-c \\ hen the hebt cosmetic result is essential the finer thread is used but with even minimal tension such a thread breaks readilv and 3-0 maj be required The finest thread which can be used will give the best cosmetic result Linen Its relativelj rough surface makes the handling qualities of linen less sattsfactorj than silk Some samples also tend to he slightl) irregular in diameter though this has been much less common recentl) Its tensile strength is much greater than silk of comparable diameter and the rough surface makes its knot- holding properties much better than those of silk Its sire is approximate!) 3-0 and it can he used instead of 3-0 silk if preferred For tie-ov ers its knotting properties and strength make it preferable Stainless steel wire Stainless steel u ire 34 ind 36 S W G is \ er> useful on occasion quite apart from its use in tendon suturing It is inert in the bod) and has a ver) high tensile strength but until the technique has been acquired it is awkward to use for kinking occurs rendil) and creates a weak point in the wire Though it can replace an\ t)pe of skin suture material it is much less satisfactor) than silk or linen for ordinar) interrupted sutures Its main usefulness is as a tension suture or as a continuous tntradermal or “over and over” suture Used as 1 continuous “over and over” suture its ngiditv prcvcnK it from “bunching” the skin as silk and linen tend to do It is also useful when sutures must be left in for longer than usual for its inertness reduces reactions around the sutures to a minimum Cat-gut To help relieve tension cat gut has been rtcommciukd as a buried suture Its use is discussed on page 2S WOUND CARE 21 Silk-worm gut and nylon Used for interrupted sutures silk worm gut is unsatisfactory as it lacks the desirable quality of pliability Its smooth surface on the other hand makes it easy to remove when it is used as a continuous intradermal suture Monofilament n\lon is pliable and inert but its knotting properties are so poor that it is rarely used for interrupted skin sutures It is useful as a continuous intradermal suture Needles Although m theory an atraumatic suture should do less damage to the skin during its insertion the large number of sutures needed would make the cost prohibitive and it is extremely unlikely that their use would make a significant difference in practice Other deficiencies of technique are usually present to explain failure to get the best result Nos 3 and 5 eye curved cutting needles are most generally useful for fine suturing and require minimal effort in use If greater strength is required a thicker needle is mturalh used Instruments (Hg r, 16) The instruments concerned are needle-holders, dissecting forceps, skin hooks and scissors It is preferable to use the instrumental method of suture tying (Fig 1, 17) for the small needles and fine suture materials make tying by hand clumsy and difficult With instrumental tying tension can be regulated and knot placement earned out with much greater finesse, exactitude and expedition after only a little practice The needle holders normally used in general surgery are quite useless Large cumbersome and ill designed for the necessarily fine work of careful skin suturing the locking mechanism in particular makes them impossible to use for knot tying The Gillies or Kilner needle holders are essential and though it takes a little time to acquire facility particularly with the Gillies holder it is a most rewarding facility to have The more a wound edge is traumatised the less good will be the cosmetic result and so the implements for holding wound margins steady for suturing must be as atraumatic as possible The skin hook is the least traumatic instrument though its method of use, described below, is a difficult one to use with elegance and speed Because of this dissecting forceps are more routinely used 22 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY Kilners Needle Holder M c lndo«s Dissect mg Forceps (non toothed) Gillies Skm Hook Fie. i, 16 The instruments used in skin suturing WOUND CARE 23 individual preference will decide the choice of the toothed or non toothed varieties but both should be used with due regard to the trauma they are causing The Mclndoe and Gillies dissecting Instrumental tying of a suture forceps are of a suitable size for routine suturing but for real!} fine work Adson forceps are much superior Two types of scissors are usually employed straight sharp pointed for cutting wound margins and suture removal curved blunt pointed for undercutting wound edges Both should be sharp so that the tissues are cut cleanly and not crushed 24 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY Technique of Wound Suture The aim is to produce a wound atraumaticalh but absolute!) accurate!) co apted and technique of handling and suturing is mere!) a means to this end First time accurate placing of the suture is a habit to acquire, the second attempt is all too often worse than the first and onh results in a moth eaten Mound edge and poor scar The needle is curved and so moves most readily in a circle The wrist must therefore be brought freel) into play so that insertion and pull through of the needle are ahra}* in the line of its curve (Fig i, 18) For a definite period after a wound is sutured slight oedema of the wound tends to develop and though it can be reduced b) a pressure dressing, allow ance must be made for it in tying the suture If the suture is too tight it will surel) cut in more rapidlj and make a suture mark The correct suture tension just avoids blanching the skin held bj the suture Sutures maj be interrupted or continuous When the cosmetic result is all important the interrupted suture is best but the con tinuous is often adequate in other circumstances, eg delav of flap or pedicle Interrupted sutures The usual suture js the simple loop suture (Fig i, 19) which consists of a simple loop knotted at one or other side of the wound and it aims to bring the skin edges together absolutel) accuratelv with no overlapping of one margin A general tendencj towards slight “pouting” of the suture line WOLND C\RE helps to ensure complete dermal apposition and makes sure that inversion of the wound edges is a\oided Inverted wound edges alwajs heal more slouh and gne a poorer scar and it is to allow the desired degree of eversion that a skin edge is sometimes undermined for inch Equal bite is the coarse adjustment" Piaemq the knot as a “fine adjustment’ Insufficient deep bite producinq inversion and dead 6pace Unequal bite producinq poor apposition of the wound edges Tic i 19 The simple loop suture The suture should include at least the whole dermis and if the wound flap includes superficial fascia particular!} outside the face this should also be taken so that the needle has an equal bite of etch side I he taking of an equal bite might be termed the “coarse adjustment’ of getting the wound edges level Not tnfrcquentl} how ev er one or other edge is a shade higher than its feffow and the tower side can 6e raised a fttrfe 6j manipulating (be Knot in tving to that side of the wound Lver} suture has an optimal side for its knot and its manipulation is the ‘fine adjustment ” B} making the suture take a slightl) greater bite of the deeper part, dermis or fat, the whole face of wound margin is approvim ited WOUND CARE 2 7 Vertical Mattress Suture Buried Cat gut Suture with knot placed deeply FlC X, 21 Commonly used types of skin suture 28 FUNDAMENTAL TECHNIQUE* OF PLASTIC SURGERY to lone stitch marks than anj other if the sutures are not tied too tightl) and are remov ed earl}, and if the superficial bite is minima! the tendenc} to imeit is corrected When there is no tension of the wound the interrupted suture alone is adequate When there is tension two possible additional measures are described which are said to allow earl} removal of skin sutures without wound disruption or stretching Buried catgut sutures (Fig x, 21) Interrupted buried catgut sutures with the knot placed deeph are used u nh the idea of taking strain after early removal of skin sutures Their ability to prevent wound stretching is rather doubtful, the result is usuallv as good or bad as might have been expected had the} not been used Their mam value is probabl} to eliminate dead space and prevent haematoma Continuous intra dermal suture (Fig 1, 21) This suture has the mem that it can be left in for 10-12 dajs without /eaimg suture marks Though it raaj be used b} itself it w ill be found that reall) accurate skin edge apposition is onl} possible if additional inter rupted skin sutures are used Its role then is to take an} tension from the interrupted sutures and silk worm gut n}lon or stainless steel wire can all be used W hile these methods are used and recommended in text books their value is ver} limited and the Z plast} used in conjunction with extensive undercutting is more effective If these are not practicable or cannot be cmpIo)ed to the full some degree of stretching is probably mev itable Continuous sutures The most useful continuous sutures are the “ blanket stitch ” and the continuous “ over and over” (Fig 1, 21) With silk or linen the blanket stitch has the advantage of not bunching up the wound and can also be locked with a knot at an} point The over and over suture does tend to bunch the wound unless stainless steel wire is used its ngidit} being sufficient to prevent this occurring Natunll} such sutures cannot be placed quite as accuratcK as the interrupted suture but where an impeccable scar is not essential the} certain! v save time It is sometimes stated that the continuous suture tends to strangulate the wound edge hut this is due to iindulv tight insertion rather than anv inherent defect of the method 20 WOUND CURE Distribution of Wound Tension When a wound is tending to distort and it is difficult to distribute the tension evenlj on both sides for suturing it often helps to make the wound taut with a skin hook m each end so that a few kej sutures can be placed accuratel} before inserting the intervening sutures When distortion is to be expected and especial!) in a Fic I, 22 Tattooing matching points with Bonne> $ Blue before skin incision to facilitate subsequent suturing curxed incision trouble will be saved by tattooing matching points with Bonney’s Blue (Fig r> 22) on either side of the projected incision before any cut is made The Three-point Suture (Fig 1, 23) Where a triangular flap has to be inset it is often difficult to get the tip of the flap to he m position, yet multiple sutures placed through the full thickness of the dermis are apt to strangulate the tissue at the tip and produce necrosis The three-point suture in such a situation helps to avoid necrosis while holding the tip in place As frequently described the suture tends to bunch the tip of the flap and a minor variation is recommended which is theo- retically sound and effective in practice in holding the tip without 28 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY to leave stitch marks than an) other if the sutures are not tied too t>ght!} and are removed earl}, and if the superficial bite is minimal the tendency to invert is corrected When there is no tension of the wound the interrupted suture alone is adequate When there is tension two possible additional measures are described which are said to allow earl) removal of skin sutures without wound disruption or stretching Buried cat-gut sutures (rig I, 21) Interrupted buried cat -gut sutures w ith the knot placed deep!) are used w ith the idea of taking strain after earl) removal of skin sutures Their abilit) to prev ent wound stretching is rather doubtful, the result is usuall) as good or bad as might have been expected had the) not been used Their main value is probabl) to eliminate dead space and prevent haematoma Continuous ultra dermal suture (rig 1, 21) This suture has the merit that it can be left in for 10-12 days without leaving suture marks Though it may be used b) itself it vv ill be found that reall) accurate skin edge apposition is onlj possible if additional inter- rupted skin sutures are used Its role then is to take anj tension from the interrupted sutures and silk-worm gut, n)lon or stainless steel w ire can all be used W htle these methods are used and recommended in text books their value is very limited and the Z-plast) used in conjunction with extensive undercutting is more effective If these are not practicable or cannot be emplo)ed to the full some degree of stretching is probabl) inevitable Continuous sutures The most useful continuous sutures are the “ blanket stitch ” and the continuous “ over and over” (Fig 1, 21) With silk or linen the “blanket stitch” has the advantage of not “bunching up” the wound and can also be locked with a knot at an) point The “over and over” suture does tend to bunch the wound unless stainless steel wire is used, its rigidit) being sufficient to prevent this occurring Natural!} such sutures cannot be placed quite as accuratel) as the interrupted suture but where an impeccable scar is not essential the} certainl} save time It is sometimes stated that the continuous suture tends to strangulate the wound edge but this is due to undul) tight insertion rather than any inherent defect of the method WOUND C\RE Distribution of Wound Tension 29 \\ hen a w ound is tending to distort and it is difficult to distribute the tension e\ en!\ on both sides for suturing it often helps to make the 'wound taut with a skin hook in each end so that a few ke\ sutures can be placed accurately before inserting the mtenening sutures When distortion is to be expected and especmllj m a Tattooing matching points with Bonnei s Blue before skin incision to facilitate subsequent suturing eur\ed incision trouble will be sa\ed b\ tattooing matching points tilth Bonne} s Blue (Fig r, 22) on either side of the projected incision before an\ cut is made The Three-point Suture (Fig x, 23) Where a triangular flap has to be inset it is often difficult to get the tip of the flap to he in position, yet multiple sutures placed through the full thickness of the dermis are apt to strangulate the tissue at the tip and produce necrosis The three point suture in such a situation helps to a\ oid necrosis while holding the tip in place As frequent!} described the suture tends to bunch the tip of the flap and a minor ' ariation is recommended w hich is theo reticall) sound and effects e m practice in holding the tip without 30 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY bunching The points to be noted in inserting the suture are i To make sure that the suture leaves and enters the reception side of the wound at the same le\el as its placement in the X flap Method of insertion and applications of the three point suture Fic i 3 The three point suture 2 To make the suture emerge well back on the reception side of the wound The principle of the 3 point suture can be extended for use where two flaps are being approximated to the third side of a wound WOUND CARE 3 * Length of Scar and the “ Dog-ear ” When an oval or circular lesion is excised and the defect closed bj direct suture the resulting scar is alwajs considerably longer than the original lesion, a fact which it is always wise to explain to the patient This is so for two reasons i When the curved lines, ellipse up to circle, resulting from Removal of a 'dogear Following excision of the lesion (a) the skin defect is sutured (b) until the dog e-ir becomes apparent The dog-ear n defined with a skin hook and the skin is incised (c) round the base Excess skin is defined and removed (d) and the skin is sutured (e) the excision arc brought together in a straight line the result naturally is lengthening of the scar 1 When the ellipse following excision is sutured there is almost invariably at each end of the suture line a “dog-ear” and the correction of this lengthens the scar still further To remove a “dog-car" (Fig i, 24) the wound should be sutured until the elevation becomes pronounced A hook placed in the end of the wound and raised then defines the extent of the "dog-ear” 1 lie elevation is then excised h> incising around the base on one or other side ending up in the line of the wound The resulting flap is brought across the wound so tliat the excess shin can he defined and removed 1 he resulting line has a slight curve and its direction, which depends on the side of the dog-ear cut initinlly , can be chosen to fit the best line cosmetically I allure to remove the dog-ear leaves a rather unsightly swelling (rig 1,25) and though it flattens somewiiat with the passage of time it does tend to remain prominent enough to mar an otherwise satisfactory result 32 FUNDAMENTAL TECHNIQUES of plastic surcera POST OPERATIVE CARE The aim of good post operative treatment is to prevent haematoma, provide rest for healing and prevent suture marks In practice this is achiev ed by the dressing care in suture removal and later support of the wound The pressure dressing With extensile undercutting it is difficult despite meticulous haemostasis to prevent a haematoma The result of failure to exc se a dog ear unless a pressure dressing is used The pressure dressing also provides the immobility and splinting which create the best conditions for rapid uneventful healing and controls the oedema which begins the cutting in process of a suture Unless there is a good reason it should be left intact until the time comes for suture removal In the face where there has been minimal undermining particularly around the mouth the advantages of a pressure dressing may be more than outweighed bv the almost inevitable contamination with food and saliva and it is often found that exposure of the w ound gives a better result It is then essential to keep the suture line dry and free of blood clot until the fibrin clot covering the line of the w ound is firm and dry The wide mesh of a single layei of tulle gras allows the passage of any discharge and this combined with the vaseline base make it a particularly good dressing next the wound as it permits the dressing to be removed with the minimum of trauma from sticking Over the tulle gras gauze and w ool followed by a crepe bandage w ill giv e adequate cushioned pressure and immobility Elastoplast may WOUVD CARE 33 replace the crepe bandage in suitable circumstances and the adhesive properties of the elastoplast can be greatly enhanced by preliminary painting of the skin with Masttsol Suture removal It is usual to lay down set days for the removal of sutures in various sites and under varying circumstances but Correct Method Alternative Cbrrect Method c. Incorrect Method Tic r, 26 Suture removal In (a) and (b) strain on the wound u avoided by pulling the cut suture lotcardi the 1 ne of the wound while in (c) the suture pulled an ay from the wound increases the tension and liability to wound dehiscence this ts quite a w rung approach Clinical experience soon tells the surgeon when a suture may safely be removed Naturally the principle is to remov e at the earliest time judged safe and this depends on so many factors, degree of tension site lmc of wound etc that it is quite impossible to lav down rules In actualh removing the suture (Fig i, 26) one must remember that the c 34 fundamental techniques or plastic surgerv tensile strength of the wound is minimal and dehiscence is liable to occur on the slightest prov ocation \\ here most care is needed the sutures arc usually smallest and therefore before beginning there must be a good light fine sharp scissors ttktch cut to the point and fine dissecting forceps tihich grip properly With these prerequisites the actual technique of remo\al is not radically different from ordinary suture removal except that absolute gentleness is necessary and the cut suture being pulled out must always be pulled out totcards the wound Subsequent support of the wound As already stated earl) suture removal leaves a wound dev oid of strength so that a sudden ill judged tension strain maj cause it to open For this reason the wound is best supported or at least protected up to a week after stitch removal It is seldom practicable to support the wound much beyond this and indeed attempts to prevent later stretching of the wound by prolonged support are of little avail KELOIDS AND HYPERTROPHIC SC^RS When a scar, instead of becoming soft and pale in the usual manner becomes red and thickened it is described as being either a hy pertrophic scar or a keloid These terms tend to be used rather indiscriminately, probably because it is difficult to define each with certainty The typical hypertrophic scar is raised rather red imtiallv but does not encroach on the surrounding normal skin does not give rise to symptoms and shows an eventual tendency to regress The keloid tends to be a much more florid lesion it is grossly elevated tends to spread and involve the surrounding normal skin and gives rise to symptoms of itching a feeling of hotness and tenderness to touch These are the extremes and as such easilv recognised but in realitv there is an infinite gradation from the completely quiescent scar through the very mildly hypertrophic scar to the most severe of keloids and the point at w hich a hypertrophic scar becomes a keloid is a matter of opinion The name is fortunatelv of sub sidiary importance for the treatment of both conditions is similar Indeed the gradation rather suggests that the arbitrary division into keloid and hypertrophic scar is artificial and that the WOUND CARE 35 conditions are rcallj a single entity of varying se\ erit\ \ irtnallj nothing is known of the cause The clinical picture A precise picture is difficult to draw for clinical generalisations do not necessarily applj to the indtwdual case and the condition itself is extreme!} xariable and unpredict able In the description which follows the term keloid will be used to cov er both conditions The tendenc} to de\elop keloids diminishes greatl} with age but it is not possible in practice to forecast whether an} particular patient will de\elop a keloid Nevertheless an} incision in a known keloid former is more likely to de\elop into a keloid than a similar incision in a random patient and recurrence following simple excision of a keloid is high!} probable Keloids are undoubtedl} much more common in the negro than in the white patient The negro also exhibits the condition in its most active form and the tumours can on occasion reach quite grotesque proportions In the white on the other hand even the frank keloid does e\ entuall} become less activ e and takes on the characters and activity rather of a h)pertrophic scar (rig i, 27) Certain areas of the body have a particular tendency to produce keloids (Fig i, 28) the pre sternal area is probably the most prone of all and here oddl} enough the shape of the keloid often shows a sex difference m the male it is triangular in the female the pull of the breasts gives it a butterfl) outline The deltoid area is mother notorious site It is significant that a scar may become keloid in onl} part of its length and this shows particular!} in the neck where the vertical scar is vcr} subject to keloid cliange while the horizontal scar is seldom affected This indeed is one of the facts which the various theories of causation fail to explain for if a scar of neck is excised incorporating Z plasties it is not uncommon for the horizontal scars to be complete!} flat and soft while the vertical limbs of the Zs show keloid or at very least hypertrophic change In general scars in lines of election show less tendenc} to keloid than those which cross them Treatment ACTH and cortisone have been used but with disappointing results The onl} treatment of real value is \ ra} therap} either alone or in conjunction with surgeiy Extreme care in dosage shielding etc are necessary and there should be close co operation between surgeon and radiotherapist It is }6 ruNDAMCNTll. TECHNIQUES OF FUSTIC SUBcEBV usual!} found that a keloid is most sensitive to red vascular and generally in an active state scar responds poorlj \ rajs when it is The whiter older Change f om kclo d to hypertrophic sea r ng o er a per od of 2 years The kclo d scarr ng (A) arose as a comp? ca on of an ex «is e deglo mg injury of Jeg The om area of kelo d s as excised and replaced u h a spl t skin graft but in the areas left untouched (BJ the lessen ng of act vity is ob nous The problem in practice The problem presents in one of three wajs The scar in a neutral ” area m the patient without a keloid history This is the position of most patients and as a rule it is enough to watch carefully such scars post operativeh and warn the patient to look out for thickening of the scar so that treatment may be started at the first sign WOUND CARE 37 Fic. i, 28 Examples of keloitls and hypertrophic scars. A. Mildly hypertrophic scar of deltoid region. Q. Set ere post- bum hj pertrophic scarring of neck and chin. C. Hypertrophic scarring following the ill-judged use of a vertical incision to excise a thyro glossal fistula D. Pre-stemal keloid in the male E. Pre-stemal keloid m the female, showing butterfly outline. F Set-era keloid of scapular region. Marginal recurrence of kelo d after excis on and graft ng A Pre sternal kelo d showing recurrence both marginally and n the suture marks B Kelo d of elbow sho ring recurrence both marginallv and ccntrallj \ here small areas of graft had faded to take WOUND CART 39 Surgery in a known danger area or in a known keloid former. There are three possible approaches to this situation — to witch the scar with extreme care and treat at the first sign to give prophv lactic treatment immediateh healing is complete, or to treat the operative site before operation and afterwards the scar as soon as it has healed The selection of the appropriate method in a particular patient \\ ill depend on an assessment of the prob ible likelihood of keloid developing The developed keloid In the worst sites, particularlv the pre sternal and deltoid areas, recurrence after excision even preceded and followed by a full course of \-rav therapv is so probable (Fig i, 29) that surgery should be contemplated with extreme reluctance A bigger keloid is the most likely result ith the greatest care and the best treatment, the results still leave a good deal to be desired The process can be damped down rather than stopped completely and the extent to which it can be reduced depends on its inherent activ ity At one end of the scale mildly hv pertrophic change can be stopped completelv , while at the other the florrd keloid in a bad site seems often to be barely influenced Fortunately mildly hv pertrophic change in scars is the most common form of the condition for it is m it that prophylaxis is most effective BIBLIOGRAPHY Lines of election for scars KrAIssl,C J (iQ 3 i) Selection of appropriate lines for elective surgical incisions Phil reconslr Surg 8, 1 Keloids and hypertrophic scars Levitt, \V M (1951) Radiotherapy in the prev cntion and treatment of hvpertrophic scars Bnt J plast Surg 4, 104 Mowlew R (1951) Hypertrophic scars Bnt J plan Surg 4,113 CHAPTER TWO The Z-phsty ALTHOUGH the place of the Z-pIasty in the treatment of j-\ W0Uf tds and scars has been described in Chapter One its ■*“ fundamental use is m the release of contractur es Used for this purpose it is a de\ice in ’wTuch.T)} transposing suitablj constructed flaps skin is brought from adjacent areas u here there is a re|ati\ e abundance, to release the contracture The theoretical basis of the method in its simplest form will be discussed before considering its applications and possible modifications in practice THEORETICAL BASIS OF THE Z PLASTY The basic manoeuvre The flaps are constructed in the form of two interdigitated triangles with a common limb giving the overall shape of a Z The common limb of the tnangfes l e the central limb of the Z lies along the line of the contracture to be released While the angles of the Z maj vary within certain limits to be defined later the common angle in practice is 6o° and this will be used m the present description With such a construction the triangles together give the shape of a parallelogram the shorter diagonal sn the line of the contracture the longer diagonal perpendicular to it The two diagonals can convenient^ be referred to as the contractural diagonal and the transverse diagonal (Fig 2, i) To carrj out the manoeuvre the triangular flaps are elevated and the line of fibrous tissue causing the contracture divided With the springing apart of the divided contracture the parallelo gram changes shape causing the triangular flaps to become trans posed the contractural diagonal to lengthen and the transverse diagonal to shorten correspondingly (Fig 2, z) As can be seen the length of the contractural diagonal ajtcr completion of the transposition equals that of the transverse diagonal before the transposition The lengthening of 40 Line of contracture r X F:c 2,2 A schema! c formalised representation of the several stages of the 42 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCER1 the contractuni diagonal is achieved at the expense of the trans verse diagonal which has become shortened to equal the original length of the contractural diagonal Translated into practical terms this means in effect that skin has been brought in from the sides, as shown by the shortening of the transverse diagonal to achieve the lengthening of the contractural diagonal The difference in length of the two diagonals is a measure of the actual lengthening achieved Construction of the 2 Since the skin flaps must fit together in their transposed position the limbs of the Z must of necessity be equal in length The angles of the Z are also usually made equal in size The factors in construction which do varj are angle size and limb length and the ways in which these variable factors affect the result provides an explanation of vvhj a specific construction is used in a particular set of circumstances Angle size In any Z-plasty once the length of the limbs of the Z has been decided the lengthening to be expected depends enureh on the size of the angle and as the angle increases so too does the amount of lengthening \\ ith an angle of 30° there is a 25 per cent increase in length, with 45 0 a 50 per cent increase while with an angle of 6o° the increase rises to 75 per cent (Fig 2, 3) It must be stressed that at all times it is percentage increase of length which is controlled b> size of angle In theory angles of up to and beyond 90° could be used with steady increase in the amount of lengthening but in practice limiting factors emerge which determine the optimal angle An angle of much less than 6o° would defeat the ver} object of the Z-plast) since the smaller angle would produce less gain m length this quite apart from the precarious blood supplj to the tip of a narrow flap The factors which prevent the use of angles much larger than 6o° are 1 Increase in length is achieved at the expense of the tissue on either side and as the angle increases the amount of tissue brought in from the sides is corresponding!} increased As a rule the amount of tissue available is far from unlimited and as the angle increases beyond 6o° the tension produced in THE Z-PLAST^ 43 the surrounding tissues is so great that the flaps cannot readilj be brought into their transposed position 2 Even if tissue was available at either side to allow an angle larger than 6o° without tension the amount of tissue turning required to transpose the flaps when the angle reaches 8 o-qo° would tend to produce unsightly dog-ears Fic 2 , 3 The percentage increase of length which results from the use of different angle sues Limb length Just as angle size controls percentage increase of length so limb length controls the actual increase in length since the increase is a proportion of the original length A longer initial limb results in a greater increase of length for a particular size of angle Such an increase in the amount of lengthening naturall} increases the tissue brought in from the sides The factors which limit maximum and minimum angle size ha\ e resulted in the compromise use of 6o° as the routine Z-plast) angle It is length of limb which provides the major \anable m practice and regardless of length of contracture the amount of tissue available on either side determines the practicable limb length — a large amount will permit a large Z a small amount will corresponding! j limit the size of the Z In considering the axailabilitj of tissue on either side it must be stressed that the transverse shortening and the tension which it creates are concentrated along the line of the transv erse diagonal 44 FBf.DAMEJ.TAI TECHNIQUES OF PLASTIC SURGERY of the Z (Fig 2 4) This becomes important when methods of diffusing tension bj constructing multiple small Z-plast,e s instead of a single large Z are considered 4 4 4 Multiple Z p/as ties — Te/isron diffused The concentrat on of lateral tens on b> the single Z-pIasty n contradistmct on to the multiple Z-plasty which spreads the lateral tens on o er the several transverse diagonals PRACTICE OF THE Z-PLASTi From the theoretical discussion it follows that the Z plast) is most effectn e where the contracture is narrow and the surrounding tissues are lax enough to permit a reasonablj large Z to be con structed since scarred and contracted tissue on either side can Meld no slack to allow lengthening Ideallj the central limb of the Z extends the full length of the contracture but this requires a corresponding!) large quantit) of tissue to be brought m from the sides tissue which is not alwajs ai ailable It is in the limbsparticularh that this problem anses for such tissue as is at ailable is not concentrated at one point but is spread out along the length of the limb In such circumstances the solution ma> be to construct a senes of short Zs instead of one large Z and so bnng in from the sides small quantities of tissue all the waj down the line of the contracture (Fig 2, 4) TKC Z PLASTl 45 A good measure of the planning and execution of a Z-plasty is the behaviour of the flaps v\hen the contracture is released If the manoeuvre is indicated and well planned the flaps should literally fall into their new transposed position indeed it should be difficult to get them back into their old relationship It is when the contracture is of the grossly bow string type that the Z-plasty is most effectiv e ^ ith the contracture more diffuse in breadth and length it is less satisfactory’ and a stage is reached where it must be decided whether a Z plasty is an adequate pro- cedure or whether fresh skin must be imported from elsewhere as a free skin graft The answer is usually to be found m the surrounding skin skin must come from somewhere if the contracture is to be released and if it is not obviously available at the sides (Fig 2, 3 ) the Z plasty will fad and a free skin graft is the true answer to the problem Planning the Z-plasty (Figs 2, 6 and 2, 8) It may be difficult m planning the procedure to decide where the flaps should be A good method is to draw an equilateral triangle on each side of the contracture (see Fig i, 9) and from the resulting parallelogram to select the more suitable of the two sets of limbs One set may have no particular advantage in which case either may be used Factors which might favour one set rather than the other are 1 The flap with the better blood supply is preferable in particular one with scarring across the base should be avoided 2 One or other flap may give a scar which will fall into a better line cosmetically The factors which would influence the choice in such circumstances have already been discussed in Chapter One 3 The he of the flaps and thesurroumbng skin may permit one set of flaps to rotate more readily into their transposed position Skin which is scarred has lost much of its normal elasticity and this may affect slightly the planning of the flaps A flap of scarred skin should be made a little longer initially than its fellow of normal skin otherw ise the scarred flap will be found to be too short when it is sutured to the unscarred flap It is usual though not absolutely essential to have the two angles of equal size On occasion a line of scarring will limit the angle TIIC Z PLASTY 47 of one Hap nnd dissimilar angles mi) then ha\e to be used Lengthening in such a case becomes the nerage of the amount to be expected from each anglealone Indeed if the full quadrilateral of im Z is drawn complete with con tract oral md transverse diagonals the transverse dtigonil will always show the actual length to be expected when the (laps arc transposed Parallel construction Skew construction Fic 2 7 The e\oluton of the parallel and skew types of the continuous mull pie Z-plasty from a series of interrupted smalt Z plasties The multiple Z-pIastj "W hen a large Z cannot be used for the reasons already discussed the alternative often lies in multiple small Zs The line of con tracture can be regarded as a senes of contracted segments and a small 7 can be constructed for each segment Carmng such an idea to its logical conclusion (Tig 2, 7) creates a continuous Z-ptasty where the Zs instead of being individual form a continuous senes gw mg the appearance of a long line along the contracture with multiple L side limbs (fig 7, 6) The Zs can be constructed with the side limbs either parallel or skew The fundamental TECHNIQUES OF PLASTIC SURGERY presence of scarring in a particular l.ne maj ln fl„ e nce the con X ; and ma r e Ske ' V naps P refen,Me but the use of parallel limbs allows uniform rotation of the flaps m transposing and presents the occurrence of the broad tipped flap with rtie „a OT w base which is undesirable from a vascular point of view and inevitable with the skew construction Whether a multiple Z-plastv must be used will large!) depend The planning and execution of a mult pie Z-plasty in correcting a localised post bum contracture of neck on the depth of the bow string It is unwise to take the side limbs much beyond the base of the bow string and if the making of a large Z would encroach on the surrounding flat skm to any extent especially if it tends to be taut then a multiple Z-plast) (Fig 2 , 8) is safer and on the whole just as effective Blood supply of the flaps The most frequent complication of the Z plasty is necrosis of the tip of a flap and it is particularly common if there has been much scarring of the skin Precautions to avoid necrosis can be taken at all stages of the procedure, by providing the flaps with the maximum of vascular capacity by avoiding tension and bv meticulous haemostasis Provision of maximum vascular capacity This is achieved by designing the flaps broad at the tip by avoiding scarring across THE Z-PLAST\ 49 the base and by cutting the flaps as thick as possible The flap tip can be broadened without affecting the angle size by slightly modifying the shape of the flap {Fig 2, 9) The thickest flap practicable should always be cut using the levels of undermining suggested in Chapter One Avoidance of undue tension This can be a very difficult problem, particularly when the contracture is a doubtful candidate for Standard shape Shape modified to of flap broaden flap tip Fig 2,9 The mod Red shape of Z-plasty flap to gn e maximum vascular capacity Z-plasty or free skin graft The large, single Z concentrates transterse tension while multiple small Zs diffuse the tension making it less at each individual Z so that embarrassment of the circulation from this cause is reduced to a minimum While the contracture may be placed under tension during the procedure to display its line and extent the parts should be dressed and bandaged in a mid position to promote relaxation of tissues in all directions Meticulous haemostasis Haemostasis avoids the disaster of haematoma adding to any tension and undue pressure of dressings either or both of which can cause necrosis BIBLIOGRAPHY Davis J S 'v Kitlowski E A (1939) The theory and practical use of Z mconon for relief of scar contractures Arrrt Sttrg tog, root Limb erg A A (1946) Mathen atical principles of local plastic procedures on the surface of the human body Leningrad Medg s Thi9 monograph contains by far the most exhaustive and authoritative discussion of the Z plasty both its theory and practice McGregor 1 A {1957) The theoretical basis of the Z plasty Brit J plast Sttrg 9, 256 D CHAPTER THRrE Free Skin Grafts AS a result of trauma pathological process or surgical excision *l )e surgeon way be faced with a defect of skin w hich because of its size cannot be closed by direct suture or which because of its other characteristics, is unsuitable for suture He must then consider whether alternative skin cover is possible and if it ts possible what form it should take On most occasions the skin cover of choice will be a free skin graft though circumstances do arise where a free skin graft cannot be used and a flap is needed The indications for the use of a flap wall be discussed in Chapter Tour the present discussion is concerned primarily with the use and practice of free skin grafting As its name implies a free skin graft is completely detached from the body during its transfer from donor to recipient site It is used in circumstances which vary enormously and examples of these are 1 Where there is loss of skin following trauma Grafting may he earned out primarily immediately after the traumatic episode or secondarily when granulations have developed 2 Where a residual skin defect is left following excision of a simple or malignant tumour 3 Where an ulcer e g gravitational caused by a non neoplastic pathological process is present As a general rule a free skin graft will be accepted by any site which left ungrafted would rapidly develop granulations Although most often used to repair a skin defect such a graft can also cover a defect of the mucosa of the accessible mucous membrane lined cavities — mouth eye, accessory sinuses etc 50 free skin crafts 5 * Free skin grafts (rig 3, 1) are of two kinds. 1 Whole skin graft consisting of epidermis and the full thickness of dermis 2 Split skin graft consisting of epidermis and a \ amble quantit} of dermis Split skm grafts are described as thin intermediate or thick according to the amount of dermis included He 3 1 A trims -ersc sect on of skin sho or the th ckncss and co nponents of tl e var oua type* of free skin graft While the properties of the whole skm graft art reJatnel) constant those of the split skin graft depend in some degree on the thickness of its dermal component the thicker split skm graft appro\imating to the whole skin graft in its characteristics 1 he whole skin graft takes less rcadih than the split skin graft and before it can be used successful* conditions must be optim it Hie thinner the split skin graft the better arc its chances of taking tn difficult conditions The stability of a graft depends on dermis and so the thicker grift stinds late trauma better than the thin graft The whole skin graft remains Mrtuallj at its original size the split skin graft tends to contract if circumstances permit c g inside the mouth or across a flexure \\ ithm broad limits the thinner a graft the more it will contract secondarih 1 he donor site of the split skin graft heals spontaneous!* 52 FUNDAMENTAL TFCJINIQtlES OF rL\STIC SURCEJtt while that of the whole skin graft has cither to he closed In suture or co\ered with a split skin graft 'I his places a limit on the area of whole thickness skin which can usefullj he cut TAKE AND YASCUL VR 1 S \TIO\ Bj definition a free skin graft must be without blood supplj until the \essels of graft and recipient area link up At normal skin temperatures a skin graft without an effective blood supplj A diagrammatic representation of graft tale A Initial anchorage b> fibrin IJ Commencing orginisation of fibrin clot with ingrowth of capillaries from graft bed and graft C Link up of blood vessels of graft and graft bed, and organisation of fibrin into fibrous tissue attachment has a limited survival time and so the rapid provision of such a supplv is v ital The process of attachment to the recipient area and vasculansation of the graft are referred to ns "take’ of the graft Initial!} there is a link-up between the capillaries of graft and recipient area (rig 3, 2) This initial linkage is said to he re- inforced bj fresh ingrowing \csscls from the graft bed so that the vascular pattern of the graft is rc organised but the evidence for this is not verv substantial The initial link up is usual K well advanced hj the third daj At this time the attachment of the graft to its bed is verj tenuous and remains so until the initial fibrin clot anchorage has become organised into a fibrous tissue attachment a process which takes some time The graft must he protected during this period lest rupture of linking capillaries occur with resulting haemorrhages under the graft The speed and actual process of vasculansation of grafts lias FREE SKIN GRAFTS 53 been inadequate!) studied in the human but in general thick grafts are less rapidlj \ascularised than thin The anatomical la) out of dermal capillaries may explain this, for the densit) of the capillar) network of the superficial dermis is much greater than that of the deeper dermis In a thin graft the greater densit) of cut capillary ends will greatly increase the chances of meeting of the capillaries of graft and graft bed with consequent rapid union and vasculansa tion on the basis of mere random link up for there is no evidence that chemotactic influences pla) any part in vascular link up NO TAKE TAKE NO GRANULATIONS GRANULATIONS ric 3 3 Cap llary outgro vth as the common factor in the de\ elopmcnt of granulations on \ anous surfaces and the r capacity to take free skin grafts Factors Influencing Take Take depends on rapid \asculansation and to achtete this certain requirements must be met 1 A recipient site capable of producing capillar) buds 2 Accurate approximation of graft and recipient site so that the granulation tissue zone between the two surfaces is reduced to a minimum 3 Immobilisation during the phase of vascularisation The recipient site Capillar) outgrowth is needed both to produce granulation tissue and to vasculanse a graft and so the potential recipient area incapable of producing granulations Will not take a free skin graft (Fig 3, 3) As a corollary of this the surface which granulates rapidl) and well takes a graft readil) , one which granulates poorl) takes a graft less readily The parallel shows well when fat and deep fascia are compared for just as deep fascia granulates better and more rapidly than fat so it prowdes a better bed for grafting The need for capillary Fic 3 4 Typ cal areas — si otcn in black — uh ch will not take a graft successfully A Bare cort cal outer table of skull B Bare tendon of extensor d gitorum C Bare cortex of metacarpus and proximal phalanges t th art cular cart I age and open metacarpo phalangeal jo nts Granulations become less \ ascular and more fibrous as they age and the sooner thej are grafted the better the chance of take Infection tends to complicate the issue m such a situation for the longer a granulating area remains ungrafted the greater ire its chances of infection nh ch mil \ ltiate graft take TRFC SKIN GRATTS 55 Accurate approximation The shorter the distance to be travelled by the capillaries outgrowing from graft bed and graft dermis to join each other the more rapid and effective will be the development of a circulating sjstem in the graft This makes it essential to have intimate contact of the graft and its bed and the commonest cause of separation of the two surfaces is blood clot Close Contact — JZapid Vasculansation Separation by Haematoma — LajJure to \&scu/anse —Loss of Craft Immobile Contact — Capillary Link up mum Movement of Graft — • No Capillary Link up — Loss of Craft Fic 3 $ The influence of accurate appro* mat on anil mmob le confcfce on the vasculir sat on of a graft (Fig 3, 5) which forms a harrier through which capillaries cannot grow in time to prevent necrosis of the graft The need to have the two surfaces contain the maximum possible number of capillar) ends explains the usual practice of -removing all fat from the whole skin graft Fat is relatively av ascular compared with dermis and would act in effect as a block to the contact of the two vascular surfaces Methods of ph)Sio!ogicaI fixation involving the use of plasma and thrombm have been described but these have no influence on the take of a graft They are effective only if the principles here stated are followed and if these principles are 54 FUNDAMENTAL TECHNIQUES Or PLASTIC SURCERA outgrowth from the graft bed means also that a free skin graft will not take on tendon bared of paratenon on denuded cortical bone ar on cartilage (Fig 3, 3 and 4) Fie 3 4 Tvp cal areas — if orm in black — \»h ch ' II not take a graft xucrcstf II) A Bare cort cal outer table of sLull B Bare tendon of extensor d gitorum C Bare cortex of metacarpal s arul proximal phalanges \ th art cular cart lap and open metacarpo phalangeal jo nts Granulations become less tascufar and more fibrous as thei age and the sooner thc\ arc grafted the better the chance of take Infection tends to complicate the issue in such a situation for the longer a granulating area remains ungnfted the greater are its chances of infection which will \itiatc graft take Pure SKIN CRA FTS 5;) Accurate approximation The shorter the distance to be travelled bj the capillaries outgrowing from graft bed and graft dermis to join each other the more rapid and effective will be the development of a circulating s>stem in the graft This makes it essential to hiv e intimate contact of the graft and its bed and the commonest cause of separation of the two surfaces is blood clot Close Contact — Rapid Vascu/arisation Separation by Hacmatoma — /SvA/rv to \&scu/anse — Loss of Craft Immobile Contact — Capillary Zink up Movement of Graft — Ac? Cap i //ary Link up — Loss of Graft He 3 5 The nfluence of accurate approxtmnt on and tmmob le contact on tl e vasculansal on of a graft (1 ig 3> 5) which forms a barrier through which capillaries cannot grow in time to prev ent necrosis of the graft The need to have the two surfaces contain the maximum possible number of capillar) ends explains the usual practice of removing all fat from the whole skin graft Fat is relativclv jvascuhr compared with dermis and would act m effect as a block to the contact of the two vascular surfaces Methods of physiological fixation involving the use of plasma and thrombin have been described but these have no influence on the take of a graft The) are effectn e onl) if the principles here stated are followed and if these principles are 56 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY adhered to they are unnecessary It is true that the early fixation of a graft is by fibrin but both fibrinogen and the enzyme system which converts it to fibrin are already present in ample quantities without requiring to be supplied by the surgeon Immobilisation During the phase of capillar) outgrowth and link up the graft and its bed must remain completely immobile relative to each other Shearing strains are particularl) to be prevented (Fig 3, 5) for the best conditions for capillary link up cationt obtain «i the presence c? such stsawwawd small movements The immobility must in theory be continued until the anchorage of the graft by fibrous tissue is strong enough to take such strains without rupturing the capillaries In practice other factors may influence the various time inten als at least as far as the initial dressing following grafting is concerned The whole skin graft is generally slower to vasculanse and is usually left for 7-10 days while the split skin graft is left for 7 days In the case of the split skin graft on a granulating area this may have to be tempered by the problem of infection and it is usual to dress such a graft on the fourth post operative day lestaccumula tiori of discharge affect the graft adversely A further dressing to provide support and immobility is applied thereafter until the graft has consolidated clinically The factor of pressure As a result of the teaching of Ferns Smith it is often stated that pressure preferably at the level of capillary pressure is necessary to get a graft to take but this is not so provided the conditions already outlined are fulfilled It must be recognised of course that in most circumstances a pressure dressing is the surest way of fulfilling them Nevertheless it is worth stressing that the pressure is merely a means to the end of fulfilling the conditions and has no inherent virtue of its own to justify its use A graft may actually fail because of undue pressure which presumably pre' ents the normal flow of blood into the graft bed It is in the scalp face and limbs that such pressure is likely to be attained by circumferential bandaging It is most prone to occur where bone closely underlies a graft and a minimum of soft tissue is present to buffer the pressure Indeed it needs pressure of an order which would produce a sore even m intact skin FREE SKIN GRVFTS 57 The phenomenon of bridging A graft ma\ take over bare cortical bone, tendon or cartilage, and even if separated from its graft bed by blood clot, provided always that the area is small enough In such circumstances the graft survives by bridging (Fig 3, 6), a phenomenon of particular interest m view of the light which it throws on the process of vascularisatjon It provides confirmatory evidence of a link-up with the ousting vascular network of the graft since bridging could not occur if vascularisatron took place bv capillar} invasion from the graft bed NECROTIC CRAFT ■ — ■ ^ FIT] CAL — - r^- -r- ~ — j Successful bridging Failure to bridge larger defect of small defect Fic 3, 6 The phenomenon of bridging In most circumstances bridging is strictly limited in area and beyond this necrosis will occur Certainly it cannot be relied on to cover bone, tendon or cartilage successful!) Where a very rich vascular network exists both in a graft and its bed, however, bridging maj be possible over a much larger area and the composite free graft of ear skin and cartilage for alar defects succeeds or fills largelv on the extent to which bridging is successful THE W HOLE SKIN GRAFT 'I he whole skm graft requires optimal conditions to take successfully and so cannot be ipplied for example to a granulating area A graft of relativ el) small size only can be used for its donor site must cither be closed by suture or covered with a split-skin graft These adverse qualities natural) limit its usefulness m practice Its desirable properties on the other hand make it v cry much the graft of choice in certain circumstances It docs not contract secondarily and this makes it suitable for skin replacement around the mouth and evehds, and on the palmar aspect of hand and 56 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY adhered to they are unnecessary It is true that the early fixation of a graft is by fibrin but both fibrinogen and the enzyme system which converts it to fibrin are already present in ample quantities without requiring to be supplied by the surgeon Immobilisation During the phase of capillary outgrowth and link up the graft and its bed must remain completely immobile relative to each other Shearing strains are particularly to be prevented (Fig 3, 5) for the best conditions for capillary link up cannot obtain in the presence of such strains and small movements The immobility must m theory be continued until the anchorage of the graft by fibrous tissue is strong enough to take such strains w ithout rupturing the capillaries In practice other factors may influence the \anous time inter\als at least as far as the initial dressing following grafting is concerned The whole skin graft is generally slower to vascularise and js usually left for 7-10 days while the split skin graft is left for 7 days In the case of the split skin graft on a granulating area this may have to be tempered by the problem of infection and it is usual to dress such a graft on the fourth post operativ e day lest accumula- tion of discharge affect the graft ad\ersely A further dressing to provide support and immobility is applied thereafter until the graft has consolidated clinically The factor of pressure As a result of the teaching of Ferns Smith it is often stated that pressure, preferably at the level of capillary pressure, is necessary to get a graft to take but this is not so provided the conditions already outlined are fulfilled It must be recognised of course that in most circumstances a pressure dressing is the surest way of fulfilling them Nevertheless it is worth stressing that the pressure is merely a means to the end of fulfilling the conditions and has no inherent virtue of its own to justify its use A graft may actually fail because of undue pressure which presumably prevents the normal flow of blood into the graft bed It is in the scalp, face and limbs that such pressure is fikefy to be attained by circumferential bandaging It is most prone to occur where bone closely underlies a graft and a minimum of soft tissue is present to buffer the pressure Indeed it needs pressure of an order which would produce a sore even in intact skin TREE SKIN GRAFTS 57 The phenomenon of bridging A graft ma) take o\er bare cortical bone tendon or cartilage and even if separated from its graft bed by blood clot provided always that the area is small enough In such circumstances the graft survives by bridging (Fig 3, 6) a phenomenon of particular interest m view of the light which it throws on the process of vascularisation It provides confirmatory evidence of a link up with the existing vascular network of the graft since bridging could not occur if vascularisation took place by capillary invasion from the graft bed NECROTIC GRAFT ■ m I Hg ■ Successful bndqmq Failure to bridge larger defect Of small defect Fic 3 6 The phenomenon of br tlging In most circumstances bridging is stnctlv limited in area and beyond this necrosis will occur Certainly it cannot be relied on to cov er bone tendon or cartilage successful Where a very rich vascular network exists both in a graft and its bed however bridging may be possible ov er a much larger area and the composite free graft of ear skin and cartilage for alar defects succeeds or fads largely on the extent to which bridging is successful THE WHOLE SKIN GRAFT The whole skm graft requires optimal conditions to take successfully and so cannot be applied for example to a granulating area A graft of relatively small size only can be used for its donor site must either be closed by suture or covered with a split skin graft These adverse qualities naturally limit its usefulness in practice Its desirable properties on the other hand make it very much the graft of choice in certain circumstances It does not contract secondarily and this makes it suitable for skm replacement around the mouth and eyelids and on the palmar aspect of hand and 5§ FUNDAMENTAL TECHNIQUES Or PLASTIC SURCEB* fingers It stands pressure well and so is useful on the sole of the foot In the face moreover a whole skin graft from one of the more suitable donor sites described below will give in genera] the best colour and texture match Donor Sites The thickness appearance, texture and \asculanty of skin \arj greatlj m different parts of the body and ha\e a strong influence on the selection of the donor site appropriate to a particular surgical situation of closing the resultant defect Post-auricular skin The posterior surface of the ear and the adjoining post -auricular hairless mastoid skin (Fig 3, 7) make the best donor site when the face is being grafted The one dis adtantage is the limited quantity of skin available and this restricts its use \ery matenallj It gives a most excellent skin colour and texture match (Fig 3, 8) and when replacing ejelid skin is often % irtuall) undetectable The vasculant) both of the graft and the sites to which it is usually applied make it the easiest of whole skin grafts to get to take The donor site is closed bj direct suture The post auricular whole skin graft has its mam use m repairing small defects of the face and the area of skin available behind the ear alone limits the size of the defect which it can be used to co\ er Supraclavicular skin The skin of the lower posterior triangle of the neck (Fig 3, 9) gives a good colour and texture match used on the face though one distinctly inferior to post auricular skin A larger area of skin is available but the increase is too small to FREE SKIN GRAFTS make it more obviously useful as the donor area itself must be grafted in most instances. This adds a cosmetic defect of its 60 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY Flexural skin. The antecubital fossa and the groin are both possible donor sites. The dermis is thin and the shin mobile on the deeper tissues. Applied to the face the cosmetic result is not greatly inferior to that using supraclavicular shin. Onlj a limited quantity is available unless a secondary graft is used to cover the donor site. In the antecubital fossa the donor site is more often exposed and the scarring of closure consequently more of a drawback. Furthermore, if much tension is used in closing it by direct suture a hj pertrophic scar or keloid may develop. In the groin the pubic hair maj limit both the use and quantity available but the area is valuable if a long narrow graft is needed, for closure in such circumstances is relative!} simple. The groin is more generally useful and for the hand it provides a good source of shin Thigh and abdominal skin. The texture and colour match of thigh and abdominal shin grafted to the face is usually poor. The shin either sta)s extreme!} pale or becomes hyperpigmented rclatn e to the rest of the face. An added defect is a loss of the constantl} varying fine play of normal facial expression. The grafted area has instead a rather mash-like appearance due possibly to its thicker dermis Although a thick split-shin graft cut from the abdomen with the drum dermatome tends to be used rather than a whole shin graft for replacing extensive areas of facial shin loss it shares the defects of the whole shin graft. Both sites provide a good source of shin for the palm of the hand and the thick dermis gives a good pad to take the necessary pressure used on the sole of the foot. If a graft of an} size is used the donor site must in its turn be grafted and even when the donor site can be directly sutured the scar usually stretches badl}. Method of Use The whole shin graft is accuratel} fitted to the defect a pattern of the defect to be grafted must be made to h- graft at normal shin tension in its new s^|^Alutnmium jaconet, and oil silk are all useful matena>* 'faking , Around the evelids aluminium foil is psK the others are more satisfactory . The graft will be used under two influence the method used to make »1 FREE SKIN CRAFTS 6l Where the area and contour of the defect are accurate!} known beforehand, eg when remo\ing a nae\us, it is best to mark out the area of excision and make the pattern of this outline This avoids having to make a pattern of the post-e\cisional defect Imprint on jaconet Cuttmq the pattern Fic 3, 10 The making of a jaconet pattern of the outline of a lesion prior to its excision which would be too big because of wound retraction or of the pathological specimen after removal which would be too small foT the same reason An outline of the shape can be made easilj , making use of the solubilitv of Bonney’s Blue in spurt (Hg 3, 10) A sheet of jaconet moistened on the fabric surface with spint and pressed on the lesion outlined with the dye lifts enough colour to leave 3 good imprint of the outline on the fabric 62 FUNDAMENT \L TECHNIQUES OF PLASTIC SUliCERl men the area is irregular it is wise to orientate the graft before cutting with multiple dje tattoo punctures (Fig 3 n) to fit corresponding marks in the skin surrounding the defect to be grafted Failure to do this can make the fitting of the graft unnecessaril) difficult Fig 3 11 The tattoo ng of matching po nts to fac I tate or entat on of the graft for suturing Where the defect is not known beforehand, eg following excision of a malignant lesion or release of a contracture the pattern can only be made once the defect has been surgical!) created In those circumstances the defect should be d splajed to the full before making the pattern This applies with particular force to the e)elid where failure to make the pattern and subse quently the graft of a size to fill the defect in full will result in residual ectropion TREE SKIN CRAFTS 6. 3 Cutting the Graft In cutting a whole skin graft (Fig 3, 12) time and care can be spent at the actual time of cutting so that no fat is left on the graft or the graft may be cut without special regard to fat the fat being subsequently removed with scissors Excision of the fat after the graft has been cut is a tedious business but to cut the graft without fat requires both skill and care It is probably easier for the surgeon who seldom uses the method not to attempt rt lest the graft be buttonholed in the process Most surgeons gradually acquire a feel for the correct plane at the time of cutting the graft \ useful dev ice especialh m the concavity behind the ear is to balloon the whole area with fluid Using the pattern alreadv made the outline is marked on the skin with Bonnev s Blue incised and undercut It often helps to pull the skin of the graft taut over the knife with hooks so that the knife is cutting blindlv largch by touch Alternatively the graft can be held turned back so that cutting is done under v lsion Oddly enough this method is less precise and usually results in more fat being left on the graft Any fat left on the graft must be carefullv removed with scissors Care of the Donor Site Behind the ear closure by direct suture is usually feasible Elsewhere direct suture should be used where possible In the thigh and abdomen where the superficial fascia is relatively lived the exposed fascia is best excised to facilitate closure In the flexures where the skin is much more mobile this is less often necessary V here the donor site defect is too large to suture a split skin graft must be used to cover it Tiir split skiin GRArr A split skin graft may vary in thickness from what is virtuallv a whole skin graft to one which is almost epidermal and each has its place depending on which property of the particular thickness is wanted It is used cither is temporary cov er to prov ide healing eg m bums in the immediate post excision treatment of skin malignancies in the coverage of bridge pedicle defects or as permanent cover In general temporarv grafts are cut thinner than permanent grafts but not infrequently a graft meant for temporary cover proves entirely acceptable as permanent cover &4 FUNDAMENTAL TECHNIQUES OF PLVSTIC SURGED Making outline of pattern ft)-— Ballooning | area with fluid ' "\f Incising along R outline Cutting blindly by touch ^ t Cutting under "■ — Trimming fat from graft Fic 3, 12 The method of cutting a full thickness graft FREE SktN GRAFTS f, Donor Sites These are selected in an\ set instance b\ such factors as the amount of shin required whether a good colour and texture match is needed local convenience as in grafting from forearm to hand with need for only one dressing the necessitv of ha\ mg no hair on the graft the cutting instrument available the desirability wl ere possible of avoiding the leg m the aged or out patient The usual areas are \ irtually the whole of the reasonably plane surface of the torso The thigh and upper arm The flexor aspect of forearm When these are not available or all possible sues arc needed skin can also be cut from The other aspects of forearm The lower leg Graft-cutting Instruments The instruments commonly used for cutting grafts arc The Humbv knife which was developed from and ha» now largely replaced the Blair knife The drum dermatome The electric dermatome The Humby and Blair knives (Fig 3 13) The Humby knife is similar to the Blair knife with the refine ment of an adjustable roller which controls the thickness of the graft cut It is the most frequently used instrument for routine graft cutting despite the fact that both it and the Blair knife can onl\ be used on corn ex surfaces The technique of cutting with it is readily acquired and for the surgeon who cuts only an occasional graft it is much the better instrument of the two The Blair knife is something of a \irtuoso instrument It is much more difficult to use and when a large graft is being cut comistenth correct thickness is a real achievement for most surgeons \\ ith the ad\ ent of the Humb\ knife it is seldom used E 66 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY Placing the donor site. The donor site most often used is the thigh and the positioning of the leg for this purpose will be described in detail (Fig 3, 14) but the principles outlined can be applied to an} other donor site The leg is placed with the appropriate group of muscles relaxed so that by pressing the muscle group either mediallv or laterall} the maximum of plane surface is presented to the knife Humby Knife (Bodanham modification) Hum by Knife ( Braithwaite pattern ) 3 > Humby Knife (Watson modification) BlairKmfe (Bodenham modification ) Fic 3 13 The Humb> and Blair knives For the medial side of thigh the leg is placed as in Fig 3, 14 The assistant presses from heron tilth the flat of both ha nds pushing round the hamstrings and adductors to gne the necessary wide flat surface for cutting a broad graft When the lateral aspect is used (Fig 3, 14) the surface pro- duced tihen the assistant presses laterally is less satisfactorily flat than the me dial aspect especially in its loner part because of the tautness of the 1I10 tibial band The depression uhich it produces betueen the vastus lateralis and the biceps femons becomes less noticeable proxunally FREE SKIN GRAFTS 67 Tor the posterior aspect (Fig 3, 14) flexion of both hip and knee are needed to get at the surface unless the subject is prone Distally the ridges produced by the diverging hamstrings make a Th gh — mtd al aspect Thigh — posterior aspect (patient prone) Th qh — poster or aspect Th gh lateral aspect (pat ent ly ng on back) Fic 3 14 Pos t oning the th gh for cutt ng a graft good graft difficult to obtain but passing proximally the flat surface broadens and a good graft can be cut readily Because of the prominence of the femoral shaft the anterior aspect does not give a broad plane surface and it is not used unless all donor sites are needed In the arm (Fig 3, 15) positioning and pressure are used in the same way to give the broadest plane surface FUNDAMENTAL TECHNIQUES 0F PLASTIC SURGERY 68 Prepimng the krnfe Ideally the blade when cutting mote, to and tro smoothly over the skin surface which does not mote at all with the knife Drag which is the result of friction between blade and skin causes the skin to oscillate to and fro with the knife and makes the graft more difficult to cut It cannot be Arm lateral aspect Arm medial aspect Forearm — flexor surface Fig 3 15 Positioning the arm for cutting a graft complete!) eliminated but lubrication does help to reduce it The usual lubricant is petroleum jelly and the surface of the blade ne\t the skin should be smeared with it When the Humb) knife is used the lubricant must be kept clear of the roller lest the graft instead of gathering on the blade as it passes between blade and roller should stick to the roller, winding itself around it Setting the knife Setting the knife is necessary onl) with the Humb) knife where graft thickness is controlled b) adjusting the distance between roller and blade The advantage of the inter- FREE SKIN CR\FTS c 9 changeable blade which is now almost universal is that it gives a much cleaner cut with minimal drag from bluntncss but this is to some extent offset by the slight lack of rigidity of the blade which is thin and only partly supported As a result the adjust- ment markings present on the knife give a setting which tends to vary u ith different blades and reliance on the markings alone in setting the roller will give inconsistency of graft thickness By holding the knife up to the light the actual clearance betw een blade and roller can be seen and this method gives a more reliable reading Although the surgeon learns with experience to set the knife by eye a clearance of a little less than $ mm as a rule will be found to give a graft of average thickness It must be empha sised however that this must in turn be controlled by watching both the graft as it is cut and the bed from which it is being cut The guiding characters of thickness are described below Cutting the graft The surgeon should worl from the more convenient side of the patient cutting down the limb or up according to his position A little in front of the knife and moving smoothly at a fixed distance from it a wooden board is held pressed hard down on the skin (Fig 3, :6) The board serves the double purpose of steadying and flattening the skin as the blade reaches it The edge of the board which is pressing on the skin is lubricated with petroleum jelly so that it moves smoothly with the knife To get knife and board moving smoothly forward in unison takes practice \\ ith both Blair and Humby knife the secret of good cutting is to concentrate on an ev en to and fro motion rather than on the forward moving of the knife as it cuts the graft It may help to make the whole skin area as taut as possible by having a further assistant hold the skin steady and tight with a wooden board just behind the knife before it starts to cut The board is kept still as the knife moves forward to cut the graft \\ here the skm is atrophic, lax and mobile as m the aged or emaciated sub ject this manoeuv re is useful insofar as it helps to eliminate drag With the Bodenham modification the clearance between Toiler and blade is apt to increase as the graft is being cut so that it becomes steadily thicker and this must be watched for so that the roller can be re adjusted to its original setting r I he Braithwaite pattern is less prone to this and the roller mechanism of the recently introduced Watson modification is virtually free of this defect 70 FUNDAMENTAL TECHNIQUES Or PLASTIC SURGERY Assessment of thickness Although s setting of the roller has been suggested above the surgeon must be prepared to modify it if necessary The first J inch or so of the graft cut gives a good in dication of the thickness and the setting can be adjusted accordingly I he trmslucency of the graft is the main mdev of thickness Fic 3, 16 j Cutting a graft with the Humby knife (Fig 3, 17) The very thin graft is translucent and not unlike tissue paper, the grey of the knife blade shows easily through Thicker grafts are increasingly opaque until the whole skin graft has the colour and appearance of cadaver skin A split-skin graft of intermediate thickness is moderately translucent The pattern of bleeding of the donor site gives a further indica tion of thickness (Fig 3, 18) The thin graft produces a high densitj of tiny bleeding points, the thicker graft gives a lower density of larger points While these criteria are generally applicable they should ahiajs Fjc 3 17 The translucencj of d detent th ckncsses of tpl t skin graft A Thin B Med um C Th ck Fic 3 18 The pattern of bleeding of the donor sites of d fferent th ckne^ses of spl t skin graft A Thin B Med um C Thick 72 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY be correlated with the initial appearance of the skm in the individual patient particular!) as to the presence of clinical atrophv \\ ith the papery skin of the aged the graft must be corresponding!) thin and the distribution of bleeding points gives no help in such cases The thickness of the skin also seems to var) in various parts of the limb in general lateral is thicker than medial and distal thicker than proximal in the individual but individual variation is considerable The drum dermatome In Great Britain the model generall) used is the Padgett Hood or one of its modifications (Fig 3, 19) Its clumsiness and un certaintv in use compared with the Humb) knife have prevented it from achieving great populant) for routine purposes An added defect is that successive drums of skin are not readil) cut without meticulous cleansing and fresh preparation of both dermatome and skin None of these criticisms appl) to the Reese dermatome which is currentl) popular m the United States and which is a much superior instrument It is unfortunatel) not manufactured m this country The description which follows refers onl) to the Padgett Hood instrument or its modifications and not the Reese dermatome Although the drum dermatome is not used routinel) there are occasions where its use is particular!) indicated The precise indications naturall) depend to some extent on the relative skill of the operator with dermatome and grafting knife but in most cases the Humb) knife is preferred unless there is a positive reason for using the dermatome In the extensive deep bum where all donor areas are needed the dermatome may have to be used since at least until the advent of the electric dermatome it alone could cut from abdomen chest and much of back On the credit side the dermatome graft is recogmsabl) uniform in thick ness and this gives it a cosmetic advantage over skm cut with the Humb) knife when the face is being grafted It is in providing extensive skin cov er for the face that the dermatome graft finds its main use and in those circumstances a thick spl t skin graft is used In using the dermatome the drum and donor area are painted with an adhesive compound When the drum is pressed against the skm the two surfaces adhere and the skin can be lifted with the FREE SKIN GRAFTS 73 drum for cutting by the knife blade which is mcned to and fro parallel to the axis of the drum at a preuoush adjusted freed Fic 3 19 The drum dermatome and ts use A Pa nt ng the drum with adhesive R Lift ng the sk n with the drum before beg nning to cut the graft C Cutt ng the graft D Str pp ng the graft from the drum clearance distance As cutting proceeds the graft is left adhering to the drum (Fig 3, 19) Cutting a graft With the dermatome can onl) be learned b) demonstration and practice and it is not proposed to discuss the technique in anj detail There are some hints however, which ma\ help the beginner 74 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERV Graft thickness Most instruments have a gauge which deter mines thickness A graft of medium thickness is 12-14/1 000 inch but thicknesses from 8 or even less up to 16 or 18 can be used according to need As with the Humby knife the gauge reading is not always accurate and it should always be matched against the graft actually cut It is often difficult to see the graft well early on in the cut but almost as good an indication is the density and size of the bleeding points of the donor area A thick graft is technically easier to cut than a thin one When lobules of fat appear the graft is m effect of whole skin graft thickness Lacquering the surfaces Both drum and skin should be given a thorough preliminary cleansing with ether to remove all grease so that the lacquer will stick properly Smooth application of the lacquer helps it to dry uniformly The edges of the drum take the greatest pull when the dermatome is cutting and should be carefully lacquered Being colder than the skin as a rule the drum dries more slowly but patience m waiting until the surfaces are quite dry pays dividends Lubrication Both the surface of the knife mov ing against the skin and the axle of the drum should be smeared with petroleum jelly to help the knife to move smoothly to and fro Lubricant must not get on to either of the lacquered surfaces or complete loss of stickiness w ill result Cutting the graft A good initial cut of the knife blade usually means a good graft and care with the first cut is worth while making sure especially that the skin is sticking from side to side of the drum Just how far the drum can safely be raised to pull up the skin for cutting depends on the laxity of the skin Raising the drum too little allows the knife to plough deeph into the skm beyond the side of the drum and an assistant should be ready to depress, the shin here with a suitable instrument Raising the drum too far increases the tension unduly and is liable to tear the skin from the drum so that the knife cannot cut properly and this produces a patchy incomplete drum of skm The middle course is only acquired with experience as is the co ordinated to and fro cutting of the knife and forward rolling of the drum Removing the skm from the drum The lacquer remains FREE SKIIS GRAFTS 75 largely on the graft and as it is taken from the drum its stickiness must be removed With mosquito forceps on each corner to elevate the margin of the graft an ether swab wall remove the lacquer as the graft comes off the drum This method is effectiv e but messy and a cleaner waj is to spraj the graft coming off the drum with either penicillin or sulpha ponder The lacquer remains on the graft but has lost its stickiness The problem of residual lacquer on the graft has large!) been solved recentlj bj using EVO STIR. IMPACT household adhesive This contact adhesive can readilj be diluted to a V iscosit) suitable for application to drum and skin bj adding an equal volume of ether and stirring until the two liquids are well mixed As an adhesive it is much better than an) the author has previously used and it has the added advantage of bonding to the drum even more strongly than to the skin so that the graft strips off the drum completel) clean leaving the adhesive entire!) on the drum The electric dermatome Although this instrument has been in use m the United States for some time it has only recently become widely av ailable in this countr) One of its major disadvantages is that it is at once a complex and fragile instrument It does not stand rough handling and if anything goes wrong it has to go back to the maker with all the anno)ance and delay which this entails With it much of the skill has gone from graft cutting and if the instructions are carefully followed the surgeon can scarcel) fail to cut a graft successful!) It has the great merit too of cutting a graft of controlled w idth and accurately controllable thickness from almost an) part of trunk or limbs and readil) cuts a ver) thin graft — a thing that other instruments do less successful!) Its maximum width is less than either the Humb) knife or drum dermatome 3nd with the more recent models available in this country the width of graft cut can be narrowed at will a refinement already present in the United States model In appearance it is not unlike a large hair-cutting machine (Fig 3 , 20 ) and the resemblance is maintained in action with the rapid!) oscillating cutting blade which is driven either electrical!) or by compressed air The skm is held stead) and lubricated 7 6 FUNDAMENTAL TECHNIQUES Or PLASTIC SURGERY with liquid paraffin so that the instrument can move forward smoothlj It is in the grafting of the extensive deep burn that the electric dermatome has been a very real advance Its abilitj to cut shin from almost anj part of the bodj surface has greatly extended the available donor areas The straight margin and uniform thickness of the graft which it cuts mean that a limb can be complete!} Fic 3 Cutt ng a very thin spl t skin graft \ 1 h the electr c dermatome flajed with scarcely an} wastage of shin between adjoining graft sites in the know ledge that the whole donor area will heal uniformlj and rapid!) It becomes a practical possibility as a result to cut successiv e crops of skin from the same donor site a most valuable propertj w hen shin is at a premium Healing of the Donor Area (rig 3, 21) In the donor site of a split shin graft greater or lesser portions of the pilo sebaceous follicles and sweat glands remain and from these multiple foci epithelium spreads until the area is covered with skin The pilo sebaceous follicles are much more active as centres of epithelial regeneration than the sweat glands which react more sluggisW} Anatomicallj the sweat glands extend more deeplj than the hair follicles and this is reflected in the different healing patterns of sites from which thin and thick FREE SKIN CR \FTS split skm grafts ha\e been cut I he donor site of the thin grift on the one hand with its full complement of cut hair follicles heals rapidl) within to da\s while the donor sue of the thick graft on the other hand depending entirety on sweat gland remnants heals much more slow!) taking 21 davs or more Most grafts arc of intermediate thickness and lca\e a percentage of follicles S 8 days JO 14 days 'Y |rj \f~\ f ", tfs4^ 71 rr 1 S 8 days JO- 14 days 16 20 days H Intermediate split skin graft BW \L ! 1 1 S 8 days IQ 14 days 16 20 days 2l(+)dsys Thick split skin graft Ik- 3 u The 1 enl nR of tl e donor * te» of the various th ckncsscs of spl t si n graft so that heihng takes to- 2 t dajs A donor area onty granulates if no follicles or sweat gland* remain and in such circumstances healing must take place from the margin of the area It will be seen from this that the healing of a donor area is analogous to that of a superficial burn Care of the Donor Area The m3in difficult m treating a donor site arises from the fact that the dressing becomes e\trcmc|\ hard and sucks like glue to the skm so that its remoaal causes bleeding and considerable pain as the regenerating epithelium is tom off Usual practice 78 FUNDAMENTAL TECHNIQUES 07 ELASTIC SURCERT is to leave the dressing quite alone until it separates spontaneous!} or, failing this, to soak it off Such masterly inactivity is onl} possible if the dressing remains dry \\ hen part of the graft has been thicker the corresponding segment of donor area heals less rapidly and may even granulate with resulting discharge It has then tobetreated as a granulating vv ound If small in area it will heal spontaneously, but if of any size it should be grafted without delay A useful prophylactic where all or part of a donor area looks at all doubtful from a depth point of view and particularly if fat is showing to any extent is to cover it with a thm split skin graft when the initial graft is cut Some surgeons practise routine grafting of all abdominal dermatome graft donor areas Such a practice of course buries some sweat gland and hair follicle remnants and these do tend to form small cysts but such cysts usually rupture at the surface without giving trouble and this drawback is largely a theoretical one THE RECIPIENT AREA Free skin grafts are applied either to raw surfaces surgically created or at least surgically clean, or to granulating wounds The practice of grafting vanes with the two types of surface The Surgically Clean Surface Preparing the recipient area Although a whole skin graft or split skin graft may be used according to circumstance the underlying principle does not vary A level surface is always desirable for irregularities are likely to giv e rise to tenting of the graft across the hollow unless it is shallow The common reason for failure of a graft where it might reasonably be expected to take well is haematoma and a completely dry field is essential before the graft is applied To this end sev eral measures can be used Infiltration of the area prior to excision Bleeding can be reduced by injecting a vaso-constricting fluid into the tissue to be excised The fluid usually used is local anaesthetic with adrenaline but as some of the local anaesthetics are vaso dilators it is preferable in the generally anaesthetised patient to use salme as the diluent Either adrenaline or noradrenaline can be used Noradrenaline FREE SKIN GRAFTS 79 is a weaker constrictor of cutaneous vessels than adrenaline but it is less likely to give rise to side effects after absorption Consid erable variation in recommended concentrations are described but in the large \ olumes often required in plastic surgery concentrations of i 2 parts m 200000 of sal me are safe and in practice effective Ligature of obuous bleeding points The forceps must pick up only the actual point so that the necrosis caused by the short fine cat gut tie is minimal It has been taught that the graft wall not take over cat gut but this is not so unless coarse massiv e ligatures are used The diathermy is a possible alternative but against it the same argument can be advanced as against cat gut In practice take is not significantly reduced if the block of tissue killed by either method is small enough Local adrenaline If the tissue excised has not already been infil trated local adrenaline or noradrenaline will reduce capillary ooze Use of time Without doubt time is the most important single factor in haemostasis The steps of the operation should be planned to give the recipient area the longest possible time for the normal haemostatic processes to become effective While waiting for bleeding to cease the area may be left covered with gauze soaked in saline or adrenaline or alternativ ely it may be irrigated with adrenaline solution and then left exposed I\hat must be avoided is constant dabbing and swabbing which only serve to encourage oozing Use and misuse of the sucker The sucker can play a most valuable part during an excision in allowing the surgeon to see precisely where he is cutting The defect once created however suction applied to the raw area will only keep bleeding going If a specific clot has to be sucked off the sucker nozzle should never actually touch the tissue or the bleeder will surely begin again W hen the graft has been sutured in position and the dressing is ready some surgeons suck out any dots which have formed during suturing 'While this is not ineffective the dressing must be applied without delay for bleeding usually begins again as a result of the trauma of the suction Marginal bleeders For these a ligature is seldom needed W ith appropriate placing the graft suture can be made to serve the double purpose of haemostasis 3nd graft anchorage So FUNDAMENTAL TECHNIQUES OF PLASTIC SURGFR\ Chip sy nnge and orange stick (Fig 3, 22) Unless the graft bed a absolutelj dry it is wise to flush out the whole site with saline once the graft is sutured in place using a chip syringe or a 20 ml sjringe with blunt cannula Any small remaining clot can be removed b) inserting an orange stick tipped with cotton wool Removal of blood clots from under a graft with an orange stick and by irrigation When the stick is twirled the clot is caught b> the wool and can be remo\ed with the stick Plasma and thrombin Some surgeons use this to wash under the graft as a final measure just before applying the dressing so that the resulting clot wall anchor the graft As ahead) indicated the procedure has no theoretical basis Its ritual use has been gcnerill) abandoned with consequent simplification of grafting procedure and no change in results Applying the graft The modes of application of a whole skin graft and a split skin graft are similar in principle and in actual practice differ in onl) a TREE SKIN GRAFTS Si few particulars The sutures which fix the graft to position around its margin are left long and tied o\er a plug of cotton wool which acts as a combined pressure and immobilising dressing In this role it is reinforced bj further dressings— gauze, cotton wool and crepe bandages or elastoplast The whole skin graft Cut to its prescribed pattern, the whole skin graft is intended to fit the defect accurateh and so is carefullv » wil- l'll ll 49 Tie 3.23 The application and suturing of a full thickness skin graft sutured edge to edge along its margin (rig 3, 23) Fnough sutures must be inserted to give as accurate an edge apposition as would be demanded in the suture of an incision and just as in wound suture, care must be taken to a\oid inversion of the edges Onl) sufficient sutures are left long to provide a snug tic over, the remainder arc cut short The split-skin graft (Tig 3. 24) The tendenej of the spht skm graft to contract subsequent!) makes it advisable to displav the raw area to the full so that as much skin can be inserted as the defect is capable of taking Such a graft is not usuallv spread on tulle gras before being applied to the raw area though the added ngiditj which the tulle gras backing provides sometimes does make handling of the graft technical!) easier F 8z fundamental techniques of plastic suRGrm The graft should be cut large enough to overlap the raw area slightly and there is no need to fit it accuratelj to the defect It will take only to the margin of the defect in an> case and the overlap can be trimmed off readily when the graft is dressed If the margin is accurately sutured edge to edge it is apt to inroll Suturing of graft in position The appl cal on and suturing of a spl 1-sL n graft and this gives a poor scar The overlapping suture avoids this and also allows reduction of the number of sutures needed for as long as the graft continues to ov erlap the defect bctu een the sutures it will cover the raw area At one time this technique was used onlv when a good cosmetic result was not essential and in the face for example the graft was carefully sutured end to end More recently the overlapping method has been used even m the face with great simpfific-ttion of technique and cosmetic results in no way inferior FREE SKIN GRAFTS 83 Dressing the graft (Fig 3, 25) A layer of tulle gras laid over the graft before the tie over cotton wool bolus is applied tends to ease the first post operative dressing but is by no means essential \\ hat is essential is the careful packing of the graft area with the cotton wool and this must be done meticulously so that the graft as a whole is subjected to uniform pressure The plug must be bulky and extend to the margin of the graft The most efficient shape is probably one with a circular cross section which will spread the pressure evenly With the wool tightly packed in position the long tie over sutures are tied tightly over the dressing anchoring dressing and graft in one mass The material best suited to act as a plug is cotton wool prepared with flavmc emulsion Alternatives are cotton wool moistened with saline or tightly wrung out with liquid paraffin but flavine wool * is much to be preferred because of its fluffing properties Over further cotton wool padding to diffuse the pressure * Preparation of flavine wool The materials used are Ihv ne emuls on and best qua! ty cotton wool or Gamgee A sheet of cotton wool is soaked in the emulsion previously warmed to reduce its v scos tv unt I it 1 completed impregnated The excess of emulsion 13 then removed from the cotton wool It is at this po nt that the usefulness of Gamf.ce becomes apparent for the covering gauze odds to the strength of the material \\h ch can be rolled up and wrung out by hand Th s must be done thoroughly unt 1 the cotton wool appears virtually dry and no more emuls on can be extracted The sheet of cotton v ool s left to dry off on a warm surface and when autoclaved is readv for use For ease of hand I ng it can be wrapped in cellophane or packed in a tin §4 FUNDAMENTAL TECHNIQUES of plastic slrgery crepe bandages are applied If the site (ends itself better to immobilisation b) elastoplast this should be used instead The objectn e is as complete immobility as can be achie\ ed and both the elastoplast and crepe are used to this end Plaster of Paris should be used if it is felt that it will add significantly to the merall immobility of the grafted area The Granulating Area In assessing a granulating area for grafting two factors are of importance — clinical appearance and bacterial flora Clinical appearance Healthy granulations are flat, red and vascular, do not bleed unduly readily, and are free from a surface film of sloughing collagen Good marginal healing is presumptive evidence that granulations will accept a graft for jt can be assumed that infection virulent enough to destroy a graft would be mimical to marginal epithelial growth Unsatisfactory granulations take several forms 1 Granulations left ungrafted for any length of time become more fibrous and less vascular so that it becomes increasingly difficult to get a graft to take Infection tends to add to the difficulties of grafting in those circumstances 2 When subjected to inadequate pressure, granulations tend to become oedematous and in this state are often miscalled exuberant Such granulations need pressure rather than excision and copper sulphate has certainly no place in the care of any surface nhich it is proposed to graft Its ooh effect is to produce a coagulum which must be cast before a graft will take 3 Haemorrhages are prone to take place into oedematous granulations producing a very typical clinical appearance 4 The typically gelatinous, haemorrhagic granulations harbouring Str pyogenes, which will be discussed later 5 When a slough separates naturally the granulations Jefi often have a tenacious film of necrotic collagen which is slow to separate and difficult to rub off FREE SKIN GRAFTS 85 Bacterial flora •\nj of the common organisms mav infect an area according to site and circumstances \\ ith the exception of Str pyogenes and Ps pyocyanea such organisms are of little consequence as a general rule and clinical appearance is a better guide than bacterial flora in assessing suitability for grafting Str pyogenes The presence of this organism is in absolute contra indication to an) grafting procedure its possible presence necessitates routine bacteriological examination of exudate before grafting is contemplated •''xNh) a graft should fail when it is present is not evactlx known though interference with the normal fibnn attachment of the graft b) the fibrinolxsin which it produces ma) possiblx be the cause Classics!!) granulations harbouring Str pyogenes are glared gelatinous and bleed rcadi!) at the slightest touch the marginal epithelium is seldom healthx and growing \\ ith the routine use of antibiotics the classics! picture max not be seen and the granula tions ma) look quite health) But this dcceptixel) tranquil helm lour of Str py ogenes does not mitigate its destructix e effect on grafts It must alwa)s be eliminated before grafting is attempted Ps pjocyanea Infection with this organism does reduce graft take but not to an extent comparable with Str pyogenes and its presence is a nuisance rather tli m a disaster Its cpidemiolog) is curious and unexplained \\ hen a large number of burned patients are being nursed together it max be quite absent for sexeral months Tor no apparent reason it then appears on one burn and despite all the usual precautions rapidly spreads to infect almost ex erx burned area in the ward No specific steps can be taken to control the spread of infection because the mode of spread is not preciselj know n Curious!) enough after a period of some w ccks the infection disappears as suddenl) as it arose The onl\ antibiotic to xxhich Ps pyocyanea is at all sensitixe is Polxmyxm T and its use locall) has been recommended b) the Medical Research Council Bums Research Unit But while Ps pyocyanea max reduce graft take b) 5-10 per cent at most grafting of the area on the other hand does tend to end the infection Grafting regardless of Ps pyocyanea and accepting anx small reduction in take gives excellent results $6 FUNDAMENTAL TECHNIQUES OF FUSTIC SURCER\ In short a positive culture of Ps pyocyanea is not a contra indication to grafting if the granulations look otherwise health) Other pathogens The other pathogens which common!) infect wounds are Staph aureus which in this situation is seldom more than a commensal Bad colt and B proteus These latter two organisms are especiall) common in the badl) handled heavih contaminated granulating wound The\ arc associated as a rule with a ver) t)pical profuse foul smelling discharge and often occur as a mixed infection with Ps pyocyanea In the extensive deep burn the) are often impossible to avoid hut all too often the\ are allowed to contaminate quite small wounds from which ordmarv care would readd) exclude them Preparing granulations for grafting It is axiomatic that the granulating area is being treated not its flora and so the role of local antibiotics is a controversial one Antibiotics should not be used blindl) on the basis of scnsitmtv reports Str pyogenes apart the flora is immaterial provided the granulations look health) and the fastest wav to eliminate the flora is to graft the area In deciding the appropriate steps to eliminate Str pyot>mei from a granulating area the organism cannot he considered in isolation Penicillin is the obvious antibiotic to use when it is the sole pathogen for no resistant strains hav e been demonstrated When it is associated with a penicillin resistant staplnlococcus however the penicillinase produced bv the staph) lococcus makes penicillin much less effective and the antibiotic to which both arc found to be sensitive is preferable Methicjlhn which is not affected b> staph) lococcal penicillinase might be expected to be effective against such a mixed Staph aureus and Str pyogenes flora and a trial b) the MRC Burns Research Unit m infected bums has been ver) encouraging Alternate eh one of the newer antiseptic agents such as chlorhcxidme (‘ Ilibitanc ) nrn be used The main cause of continuing infection is the presence of slough measures to get rid of it ahva)s reduce the infection Surgical excision is the most rapid and effective method and in excising slough it pavs to be as radical as is feasible Excision to fascia is preferable to excision to fat The alternative methods are natural separation unaided or helped l v Eusol or the enrj mafic agents for debridement FREE SKIN GRAFTS S7 here a slough is separating naturall) , pus is ine\ itable and is by no means undesirable for its autolytic enzjmes plaj a valuable part in separating living from dead tissue If there is no sign of invasive infection the flora is to be regarded as innocuous, onlj when the slough has gone is it possible to reduce the flora The chemical agents for debridement, phosphoric and pyruv ic acid which act by altering the local pH are unsatisfactory The\ are painful impossible to use in a sterile fashion and when the main slough has separated there is left a tenacious film of sloughing collagen which must be removed before grafting More recentl) they have been replaced bv the enzymatic agents streptodornase- strcptokinase and trvpsm but these have not achieved great popularity and appear to have little to offer over the established methods Eusol has still much to recommend it both for cleaning up dirt) granulations and removing sloughs which are moist diffluent and difficult to excise cleanly The Humby knife has been used with the roller widel) open to excise both slough and heavily infected granulations and is most effective in the role as is also the electric dermatome When granulations are clean and free of slough they should be grafted without delay During such waiting as is unavoidable an innocuous dressing which will not damage the granulations when removed should be used and tulle gras is usual Unless Sir pyogenes is present an antibiotic is not essential A meticulous dressings technique adequate cover both in area and thickness of dressing and infrequent dressings provide a better insurance against superadded infection than a blind reliance on antibiotics The other factor which will keep granulations as healthy as possible for the longest time is pressure and crepe bandages are usual!) necessar) to provide this Applying the graft Spreading the graft on a sheet of tulle gras (Fig 3, 26) eases handling, tulle gras and graft can then be directi) applied to the granulating area The graft is not usuall) sutured m place though in a difficult situation a few tacking sutures ma) help to prevent it sliding off the granulations while the dressing is being applied There is no question of using the sutures for a tie over dressing for the) would cut out verv rapidl) '} he fixation of the graft is naturall) much less secure than that 88 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY of a tie o\ er dressing and it ls liable to slip during the first few turns of the bandage if these are not carefully applied The outer dressing consists of the usual gauze, cotton wool and crepe bandage or elastoplast Bulk of dressing ma) be enough to produce immobilit) but plaster of Pans should ahvajs be used if need be to reinforce the dressings Fic 3 26 The handling of a spill skin graft on tulle gras A Laying the graft on the tulle gras which has been spread on a wooden board B The graft spread on the tulle gras C Cutting the graft into strips The pros and cons of stamp grafting It became usual during the 1939-45 War when large granulating areas had to be grafted to cut the graft into squares of postage stamp size and to applj these stamps rather than large strips or sheets of skin Sex eral reasons were gn en for this 1 By spacing the stamps a small amount of skm could be expanded to cox er a large area 2 The spaces between the stamps allowed the escape of pus exudate, etc without lifting off the graft 3 Where fixation was difficult, as in the perineum or axilla, stamps were less likely to be dislodged than a sheet of skin which might become ruffled It must be realised that methods of preparing \irtuall) sterile FREE SKtN GRAFTS 91 pressure dressing instead of being a means to the desired end of providing close immobile contact as it does elsewhere has become the means of preventing that end The complete removal of the dressing eliminates these shearing strains at a single stroke and this is the basis of the exposure method of grafting method relies on the natural fibnn adhesion between graft and bed — merel) laid in position and protected from being rubbed off, the Fig 3 28 Exposed grafting used in the treatment of the post eccis onal fefect foil / tt radical vulvectomy for squamous carcinoma In th s instance grunuti ni « were allowed to develop before the graft was appl cd graft is allowed to he until vasculansation and W* place in the usual vvaj (Fig 3, 2) It should be appreciated that although supf * technique is extremelj simple it imposes a discipline \ it is to be used successfully Although it is pcw k primanl) if haemostasis is complete the fact that p"* he used to prevent haematoma once the graft hr 1 means that haemostasis has to be most rigorous ' method is most successful!) used when ho 1 '' are ahead) present and problems of haemo^ (Fig 3, 28) Of course to be able to watch & an) little haematoma to be evacuated im/r* snipping the graft The method requires co operation fnr~ most dangerous time is during 92 FUNDAMFNTAL TECHNIQUES OF PLASTIC SURCERy untcl full rcco\ erj from tire anaesthetic It is sometimes possible to store the cut skin overnight in the refrigerator and apply it with the patient conscious and co operativ e in bed The protection need not be unduly elaborate If the area is small an im erted stainless steel bowl or kidnej dish strapped across is adequate (Hg 3, 29) Alternatively plaster of Pans built up over the area so that it is protected can be used The me of a kidney d sh to protect an exposed split skin graft appl cd as in Tig 3 2S Note the use of the catheter to sa\e unnecessary moxement of the pat ent and possible d slodgment of the graft There are many areas which can be successful!) grafted either b) pressure or exposure methods and in most of these the pressure method is still the one to use The exposure method should be resen. ed for the site w here the pressure method is clearl) going to be difficult or has alread) failed It is worth trying m the problem of the small granulating areas between previous!) applied stamps or sheets, those areas so troublesome and difficult to get either to heal or accept a graft using conventional methods As a technique its full potential is reall) still being explored and its proper and permanent place has not )et been defined FREE SKIN GR\rTS 03 STORAGE Or SUN By storage at a low temperature skin cut in excess of current requirements can be preserved viable for later use as needed Within the temperature range 0-37 0 C the survival time of a stored graft xs a function of its temperature and the lower the temperature the longer the survu al time The experimental work which shows this has been done mainly With animal skin but enough is known of the behaviour of human skin similarly stored to make the results clinically applicable For long survival Ringers or Tyrodes solution should probably be used to keep the graft moist but normal saline vv orks adequately The graft is wrapped in gauze wet with the solution and placed in a sterile sealed container Unless specially long survival eg up to 2! day-s is needed the storage temperature is not of paramount importance but it seems probable that 4 0 C is likely to give the best results LOCAL ANAESTIirSIA TOR GRAFT CUT! INC Formerly the use of local anaesthesia for graft cutting was restricted by the uneven surface which infiltration produced coupled with the large volume of anaesthetic agent needed The use of hy aluromdasc has removed these drawbacks and it is possible now to cut quite large grafts readily if the enzy me is added to the anaesthetic solution The solution diffuses so rapidly that it is difficult to define exactly the area infiltrated and it is wise to outline the area to be anaesthetised with Bonnev s Blue so that it can be systematically infiltrated The exact amount of hy aluromdasc which has to be used is not critical 1 500 international units added to roo ml of anaesthetic solution will be found to work satisfactorily BIBLIOGRAPHY Vasculansation of grafts Calnan J &. Inms r L F (1957) Fxposcd delated primary sk n grafts Bnt J plait S rg 10 11 Davis J S ^ Tnurr II F (1925) Ong n and development of the blood si pply of wj ole th ckncss skin grafts At n Surg 82 871 94 fundamental techniques of plastic surgery McLaughlin, C R (1954) Composite ear grafts and their blood supply Brit J platt Surg 7, 274 Smith, F {1926) A rational management of skin grafts Surg Gynec Obstet 42, 556 Healing of donor sites Converse, J M &. Robb-Smith, A H T (1944) The healing of surface cutaneous wounds Ann Surg 120, 873 Infection of granulations Clarkson, P S. Lawrie, R S (1946) The management and surgical resurfacing of senous bums Bnt J Surg 33, 311 Jackson, D M , Lowbury, E J L & Topley, E (19^1) Pseudomonas pyocyanea in bums Lancet, 11, 137 Jackson, D M, Lowbury, E J L & Topley, E (1951) Chemotherapy of Str pyogenes infection of bums Lancet, u, 705 Liedberc, N C , Kuhn, L R , Barnes, B A , Reiss, E & Asispacher, W H (1954) Infection m bums Surg Gynec Obstet 98,693 Lowbury, E J L Lilly, H A , Miller, R W S , Cason, J S 1 Jackson, D M (1961) Treatment of infected bums with methi- cillin Lancet 1, 1318 Storage of skin Pepper, F J (1954) Studies on the viability of mammalian skin autografts after storage at different temperatures Bnt J plait Surg 6, 250 Buchan, A C (1958) Experimental studies on the storage of skin the viability of human skin stored above freezing point Bnt J plait Surg xi, 206 Local anaesthesia for graft cutting CAMERON, J A (1951) Use of hyaluronidase to facilitate cutting of free skin grafts under local anaesthesia Glasg vied J 32, 150 CH\PTER I OUR Flaps, Pedicles and Tabes T HESL types of tissue transfer are basicallj similar and the general term flap will be used to co\ cr all three 1 he essential difference between i flap and a free shin graft lies in the factor of blood supplj for in contra-distinction to the free shin graft a flap retains a vascular attachment to the bod\ at all Fic 4, i I*he basic type* of llip transfer times during transfer This implies in c\erj flap a functioning enscular si stem, both arterial and \cnous, capable of maintaining an adequate circul ition during the stages of transfer from donor to recipient site T he presence of such a s\stcm enables a flap to be transferred to an area whose blood supplj would be inadequate to nouns!) a free shin graft and this \en factor is a frequent reason for using a flap in preference to a free shm graft There arc mam different tepcs of flaps (I ig 4, 1) Raised from its donor surface lilt a lid or trap-door a flip ma\ he mo\ed 95 96 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY to its destination in se\ eral najs common!} by rotation, trans- position or direct application, and the appropriate term is used to describe the flap The greater pan or all of such a flap is applied to the recipient site, there is little or no pedicle Wien a flap does have a pedicle the vital element is usually its terminal segment, the remainder forms its pedicle acts as its earner and provides its channel of blood supply during transfer To reduce sepsis b\ eliminating ran surfaces the flap is often made into a tube and is then called a tube pedicle THE PLANNING Or FL^PS Defining the defect Before repair by a flap is contemplated the extent of the defect must be defined in terms of each component — shin bone and lining In this the quality of the shin surrounding the obvious defect must be taken into account Shin showing radiotherapy damage or the fibrotic and atrophic changes of old scarring is not good surgical material and is often better regarded as part of the defect and excised in order to reach the good shin bevond it (Fig 4, 2) In addition to its poor suture holding qualities the avasctilanty of such shin makes it unsatisfactory for nourishing a pedicle inset when the remainder of the pedicle is detached for transfer A good criterion shin texture and appearance apart, is the state of shin mobility , shin freely mobile deeply is usually reasonably satisfactory to work with Planning the procedure A flap is planned in two distinct ways which while they cannot be quite divorced in practice are best considered separately They consist of deciding the type of flap and planning the actual transfer Type of flap The transfer of a flap may inv ol\ e mov ing tissue adjoining tie defect or tissue at a distance from it Before local tissue can be transferred it must be demonstrably available and ways of assessing the size of the local flap required for a particular defect will be described under the heading of Rotation and Transposed Flaps FLAPS PEDICLES AND TUBES gy The transfer of tissue from a distance follows one of three patterns Fic 4 2 Typ cal areas su table for flap co er and the extent of excis on required solely to elim nate sea r ng It should be apprec ated that further shin may ha e to be excised to perm t the flap to ha e a shape su table from a vascular % e vpo nt Thus F g 4 t8Bsho s the flap used to repi r the defect r Stages in the repair of A a e sho n n F gs 4 3 4 6D and 4 18D and of D n Figs 4 7C and 4 11A i The defect is brought to the donor site from \\h ch the flap is raised and directly applied to the defect A direct flap of this tj pe has its main use in covering defects of the arm — distall) more often than proximallj — with the trunk as donor site G 96 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGED to its destination in several «ajs commonly b\ rotation trans- position or direct application, and the appropriate term is used to describe the flap The greater part or all of such a flap is applied to the recipient site there is little or no pedicle When a flap does have a pedicle the vital element is usually its terminal segment the remainder forms its pedicle acts as its carrier and provides its channel of blood supply during transfer To reduce sepsis by eliminating raw surfaces the flap is otten made into a tube and is then called a tube pedicle THE PLANNING OF TLAPS Defining the defect Before repair by a flap is contemplated the extent of the defect must be defined in terms of each component — shin bone and lining In this the quality of the shin surrounding the obvious defect must be tahen into account Shin showing radiotherapy damage or the fibrotic and atrophic changes of old scarring is not good surgical material and is often better regarded as part of the defect and excised in order to reach the good shin beyond it (Hg 4, 2) In addition to its poor suture holding qualities the avascularity of such shin mahes it unsatisfactory for nourishing a pedicle inset when the remainder of the pedicle is detached for transfer A good criterion shin texture and appearance apart is the state of shin mobility , shin freely mobile deeply is usually reasonably satisfactory to worh with Planning the procedure A flap is planned in two distinct ways which while they cannot be quite div orced in practice are best considered separately They consist of deciding the type of flap and planning the actual transfer Type of flap The transfer of a flap may mv olv e mov mg tissue adjourn g tfe defect or tissue at a distance from it Before local tissue can be transferred it must be demonstrably available and way s of assessing the size of the local flap require for a particular defect will be described under the heading o Rotation and Transposed Flaps Tic 4 a Typ cal are: is su table for flap co\er and the extent of excis on required solely to elim nate scarring It should be appreciated that further skin may hate to be excised to permit the flap to have a shape su table from a vascular vie v point Thus Fig 4 i^B shows the flip used to repa rthe defect F Stages in the repair of A are shot -n in F gs 4 3 4 6D and 4 tSD and of D in Figs 4 7C and 4 11A i The defect is brought to the donor site from which the flap is raised and direct!) applied to the defect A direct flap of this type has its mam use m cot enng defects of the arm — distaJ]} more often than proximal!} — with the trunk as donor site G 9S IOMIAMCNTAL TECHNIQUES OF PLASTIC SURGERT 2 The donor site and the defect are both morcd into close proMmitj to each other so that a flap can be transferred d* recti} from one to the other This is the situation when a direct flap is transferred from leg to leg— a cross-leg flip, from forearm to opposite hand— a cross-arm flap; or from finger to finger — a cross finger flap 3 The defect remains \irtuallj static and the bulk of the mo\ ement involved tn the transfer is done b} the flap This Situation is typified by the tube ptdic\t transfer The appropriate type of flap in an} set instance tends to be goterned b} the size and site of the defect, and the time factor in the transfer Size of the defect A local flap has to be much greater in area than the defect it is planned to cover and the limbs are seldom able to provide enough tissue to coier the size of limb defect which commonly requires flap cot er In the trunk and face the necessarj area of tissue is more likelj to be present and the local flap more often a practical possibility The area of tissue which is readily transferred as a direct flap is considerablj smaller than that which can be transferred as a tube pedicle and large defects generally require a tube pedicle Site of the defect When the choice lies between a direct flap and a tube pedicle a direct flap can only be used if the defect and donor area are capable of read} approximation This limits the direct flap to defects of arm and hand, and lower leg and foot The mterpla} of size and site as it affects the local flap has been described above fhe time factor The actual transfer of a direct flap is completed in 4-5 weeks, the tube pediclfe transfer often takes three times as long The direct flap can be used as an emergency procedure, subject to certain dimensional limiting factors, the tube pedicle can onl} be used in an elective fashion for it has to be raised and tubed before the transfer is begun The local flap is virtually completed in a single stage and maj be desirable on this score It does not invoke the patient in maintaining a particular position for a period of time with con- sequent liability to joint stiffness (see page 127) as do both the direct flap and tube pedicle The need to maintain a position FLAPS, PEDICLES AND TUBES 99 for a prolonged period with the bed rest which this may occasion can be a contra-indication In the older 3ge group to the use of a direct flap or tube pedicle. Fic. 4, 3 Planning in reverse. The area (Fig. 4, aA) requiring replacement is covered with the jaconet "flap” (A), the legs arc placed in the transfer position snd (B and C) the “flap” « put inio the position it will take during the actual transfer (see Fig. 4, i3D). The “ flap” u then laid out on the donor area (D) and outlined with Bonney's Blue (E) to give the shape and position of the actual flap (F). Planning the transfer. With the type of flap decided, its site, size and shape, and the stages of the transfer are planned by the method of planning in reverse (Fig. 4 , 3). The defect is 100 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY outlined with a suitable material such as jaconet With this representing the flap the procedure is carried from the end result backwards through the various stages with the limbs in their correct position until the ' flap’ ends up on the skin area from which it is to be taken, where it is used to outline the definitive Fic 4,4 The result unmed ately following the completion of the transfer of tube ped cles to correct post bum neck contractures and after Z-plast es coupled with thinning A previous stage in the transfer of (A) is shown in Fig 4 rjB and the tube ped cle used for (B) is shown in Fig 4, 7D flap In this way the patient is not given an impossible position to maintain at a critical stage of the transfer and the surgeon av olds a flap w Inch, is too small, one \\ hich will Link during transfer or fad to reach its destination because it is too short Time spent on the planning stage is never wasted in the long run A flap should always be planned with a margin of reserve Skimping making it just neat, wall certainl) create difficulties for the surgeon m due course It is easv to tnm an excessively large flap, but difficult to add to one, once begun FLAPS, PEDICLES AND TUBES IOI The exigencies of blood supplj may dictate dimensions shape and thickness which would not be necessary otherwise, and subsequent trimming, thinning and Z plasties have often to be carried out after the flap has completed its transfer to give the optimal result (Fig 4, 4) VASCULAR ASPECTS OF FLATS Blood supply governs all flap practice and a dear understanding of this aspect will explain much which would otherwise be inexplicable m the construction and transfer of indiv idual flaps Vascular Adjustments Flaps consist m most instances of skin and superficial fascia If a block of such tissue in situ is considered from the viewpoint of blood supply, it maj be assumed that its content of blood vessels in respect of numberand calibre is the most efficient physiologically Its free ingress of arterial blood and egress of venous blood are quantitatn ely governed largely by its metabolic requirements In ordinary circumstances, this flow is a mere fraction of its potential vascular capacity, the reserve factor is considerable A common circumstance which calls on at least part of this vascular reserve is an acute inflammatory reaction Such a reaction is well within the capacity of the normal circulation to sustain in all but the most virulent infections unless the reserve is reduced as in arteriosclerosis of the lower limb when a mild infection can trigger off a spreading gangrene A flap differs from the surrounding skin in that its quota of arteries and veins is strictly limited This can be seen if one considers the theoretical situation of a square flap with vascular pattern distributed equally on each side and its deep surface Raising such a flap to leave it attached by one side alone reduces its vascular capacity to and though such a theoretical distribution of blood vessels does not hold in practice the principle of reduction of vascular capacity does If, however, it were possible to cut off the other four vascular attachments gradually it would be found that the pattern of the flap had adjusted itself so that its capacity and reserve remained almost normal It has also been shown experimentally that 102 FUNDAMENTAL TECHNIQUES Or PLASTIC SURGERY following the raising of a tube pedicle the mean blood pressure in the tube drops to 25 per cent of normal rising to 90 per cent by the end of 4-6 weeks How do such re adjustments occur 5 It is well recognised that there is tremendous lability of \ascular pattern with a flexible response to local requirements Little is know n of the physics of these changes but a more efficient vascular pattern is presumably produced The pattern changes have not been worked out m detail but the end result seems to be an axial reorientation of the larger blood vessels with an increase in number and calibre The means adopted in practice to induce these highly desirable pattern changes will be considered later It has been stated that the vessels of a flap are sy mpathectomised and dilated but this is not so Thev are in actual fact completely denervated and the physiological consequences of complete denervation are quite different from those which follow sy mpithec tomy alone the vessels appear to develop an autonomous state of tone Certainly the normal skin colour indicates that they are not dilated and they are able to produce in appropriate circum stances apparently normal reactions of reactive hyperaemia and acute inflammation Vascular Insufficiency In a flap suffering from vascular insufficiency the difficulty in most cases is not the getting of blood into the flap but getting the blood which is in out It is circulation which is the problem To lose a flap because of pure arterial insufficiency is a rarity to lose part or all of it because of venous insufficiency is all too common Flaps die in congestion and not anaemia Several factors play a part singly or together in tending to embarrtss the circulation Mechanical tension When transferring a flap the tissues must not be sutured under greater than normal tension rather should they be under less than normal tension Undue tension tends to em barrass both the venous and arterial flow particularly the v enous htnktttg With arterial pressure higher than venous pressure kinking of a flap impairs the venous drainage initially and makes the flap congested It tends to be most serious when the flap lacks flexibility and is always aggravated by any increase in tissue turgor FLAPS, PEIJICLFS \ND TUBES x °3 Oedema WJitn oedema develops it contributes to and enhances the ill effects of tension and kinking Skin initially lax and wrinkled becomes shiny and swollen and particular!} in the confining circumstances of a tube pedicle, there is obstruction of xenous flow and still further increase of turgor Transient oedema is common eien in the flap which is pro- gressing faxourahly increasing oxer the first 24-36 hours It remains for a further 2-3 daxs and the appearance of fine wrinkling of the shinx oedematous skin is the first sign of its passing as the circulation becomes more efficient - Increase of Tissue TbrqorV^ J Kinking -• Venous Mechanical Tension Tic 4 5 ■ lnflammat*on The x iciou# circle of circulator) embarrassment in a (lip Inflammation The xascular reserxe of a fi-ip is nexer normal and xx h tie it ma} be adequate to cope xuth ordinary metabolic needs the added burden of an inflammatorx reaction must alwa}s be an embarrassment T he soil rather than the seed is the critical factor and infection which would be of minor significance elsewhere can produce necrosis of quite disastrous extent in a flap \\ hen an inflammator} reaction does dexelop tension becomes an added factor in causing the necrosis to spread lor clant} these factors haxe been discussed separatcl} but the} seldom act singl} in practice One factor max initiate the xicious circle of increased tissue turgor leading to xenous con- gestion leading in turn to increased tissue turgor but rapid!) the others come into action to aggraxatc the c}cle schematically indicated in I ig 4, 5 Flap Necrosis Dex doping necrosis in a flap presents chmcalix with the skin acutelx congested, cvnnosed, blanching momcntanlx on pressure but xxtth x csscla rapidly filling again, the xascular bed is dilated 104 FUNDAMENTAL techniques of plastic surgery and largely stagnant As the condition progresses, blanching on pressure becomes less and less definite until there is dearly no active circulation The cyanosis remains and takes on a violaceous tint Histologically there is gross extravasation of blood Blistering of the skin with serum, or blood filled blebs, usually develops When the blister skin is removed the under lying skin is moist, cy anosed and without demonstrable circulation Although the development of such blisters indicates that some circulation is still present it also implies that the onset of necrosis is virtually inevitable and imminent At this point the margin of the affected area is seldom well demarcated and the process tends to spread for the reasons already indicated The final area of necrosis is often more extensive than appearances at the onset might have suggested This is so because the process will not halt until a skin area has been reached whose vascular capacity is able to cope not merely mfh ordinary metabolic needs, but also with the added vascular burden of the adjacent necrosis and any superadded infection When the process eventually does stop spreading a good line of demarcation is present with, just proximal to it, a zone of inflammation well sustained from a vascular v levvpomt This then is the picture of the untreated, florid, progressive process of flap necrosis Prevention of Flap Necrosis Steps can be taken at all stages to prevent flap necrosis — in the initial design of the flap, by enhancing its vascular efficiency and by care during and after transfer Initial design of the flap This involves such factors as the length breadth ratio the intrinsic vascular pattern of the flap its anatomical situation, etc , and the problems will be discussed as they relate to the planning of each kind of flap The design should always allow for the normal increase in tension which the phase of oedema creates Enhancement of vascular efficiency By cutting off the unwanted blood vessels the flap is * trained to rely only on those vessels which are actuallv to be functioning during the subsequent stage of the transfer This measure is FLAPS, PEDICLES AbiD TUBES *°5 termed a delaj and is achiev ed either bj surgicall j di\ ldmg the unwanted vessels or bj clamping the pedicle where possible, the so called physiological delaj Fic 4 6 Examples of surgical delays A Pancake flap delaj ed on to one end of an acrom o pectoral tube pedicle used to repair radionecrotic ulcer of chin shown in Fjg 5, 6B B Delay of cross leg flap Subsequent stages shown in E and Fig 4 18A C Lengthening an abdom nal tube ped cle by delay D Delay of the segment of the cross thigh flap (see Fig 4 18D) planned in Fig 4 3 which was intended to cover the heel of the foot E Delay of cross leg flap (see B and Tig 4 t8A) prior to detaching and insetting the flap The surgical delay A surgical delaj permits the use of a greater length breadth ratio than would be possible without it \n incision is made along the line across which the surgeon wishes to cut off the blood supptj the blood vessels crossing the line are divided, ligated if need be and the wound is resutured and allowed to heal (Fig 4, 6) This onl) divides marginal vessels and to cut off the blood supptv entering the deep surface the flap must be elevated and the entering vessels dtv ided and ligated before 106 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCERt returning the flap to its original position In a difficult situation the flap can be delajed in stages Such vascular link up as mav occur during healing of the incision is not enough to prevent the redeplovment of blood vessels which results How soon the delaj can be assumed to have achieved its purpose has never been properl) worked out experimental!) and the time is dictated b) the healing of the incision The next stage is proceeded with when the delav has healed usuillv in 7-10 da)s It must be recognised that the delav is a double edged weapon capable of operating against as well as for the surgeon This is true especial!) of the dela) involving elevation for no matter how delicate the technique reaction of the separated surfjccs is alwavs produced and is around its peak at the tenth da) Txcision of this indurated surface when the flap is actuall) transferred dots not altogether eliminate the zone of reaction and its presence un doubtediy reduces the flexibrbtv of the flap makrng kinking both more hkel) and more serious It is desirable to reduce reaction to an absolute minimum b) using planes of cleangc In the limb this is at the junction of superficial and deep fascu m the abdomen at the junction of superficial fascia and aponeurosis In the chest and back no real plane exists but the best substitute is close to muscle Haematoma too adds to the reaction and should be avoided b) scrupulous haemostasis A carcfull) applied pressure dressing post operativcl) will prevent the accumulation of fluid under a flap though a balance between too little pressure which allows fluid to gather and too much which causes ischaemic necrosis is not always eas) to achieve Surgeons var) greatl) tn the extent to which the) use the delav Though a delav mav seem to waste time it docs on the whole make flap transfer safer and on this score mi) reasonal Iv be considered a time saver since the paramount cause of wasted time is loss of part of a flap during its transfer The ph) siological delay This measure ts useful mainl) m the tube pedicle and trains it to rel) for its vascular support on one end alone The pedicle is compressed either In an inflated sph) gmomanometer cuff or a suitabl) padded intestinal clamp initial! v for short periods gradual!) lengthening FLAPS PEDICLES \ND TUBES IO7 Care during and after transfer It is after transfer particularh that skilled and experienced nursing can be invaluable not merelj in pre\entmg trouble through careful positioning of the patient but in recognising the danger signals of circulator} embarrassment earl} while the\ are still readil) res ersible and before the inexorable sequence which leads to necrosis has begun in real earnest It is at this time too that a goad nurse can provide the encouragement so necessarj to a patient during the earh hour* and davs of what for him is so often an agomstngh uncomfortable position There are several vvavs however in which the surgeon can anticipate and prevent the potential troubles which can arise post operativelj Haemostasis A developing haematoma is prone to initnte the increase of tension which starts the c)de of events -dread) described Haemostasis is easier to achieve if planes of cleavage are used for the vessels crossing are large and few and are readil) ligated A previous dela) tends to obscure these and a diffuse 007c is more common A pressure dressing sometimes helps but as alread} stressed there is the difficult) of getting just the correct pressure Use of grout} Fgress of blood from the flap is the usual problem and where possible gravit) should be used to help venous drainage The foot of the bed can usefull) be raised on occasion and the Bilkan frame mav be emplojed for suspending the appropriate part of a limb Control of sepsis Infection as a factor operates at all stages and with the one exception of head and neck flaps all skin surfaces are best healed before the next stage of the transfer it. contemplated Skin preparation must be scrupulous and though asepsis is often difficult to achieve at ever) stage of the various operations involved in the transfer it must he realised that each break in technique does endanger the procedure Planning at each stage to avoid raw surfaces is important and this topic is discussed on page i°o Methods designed to encourage actue circulation These consist of the intermittent inflation of a sphvgmoma nometer cuff placed strategicall) either to drive blood into or out of a tube pedicle It is the flow out of a flap which needs encouragement as a rule I08 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY and this is probably the more valuable use of the method The cuff is wrapped round the pedicle inset where necrosis is most likel) to occur and intermittent!) inflated Continuous pressure has also been advocated with the object of forcing the blood out into the veins b> increasing the general pressure on the flap, in effect to provide an alternative peripheral resistance to the atonic, dilated local capillar) bed of the flap suffering from vascular insufficient The optimum pressure is thus just below capillar) pressure It is impossible to sa) after the event what might have happened had in alternative method been used and critical assessment of the method is difficult Similar criticisms appl) to intermittent pressure Further it needs a real effort of will to cover up a flap whose circulation is precarious so that its progress cannot be seen On the other hand the interference of gentle massage to tr) to keep the circulation going, inspection, etc , do more harm than good The) produce local hypcraemia in normal tissues and this is exactly what one wishes to avoid in a flap It maj well be that much of an) success achieved b) pressure techniques results from the rest which the flap is allowed Neither intermittent nor continuous pressure methods have achieved much popularity Treatment of Flap Necrosis There is a limit to what can be done to save a flap m danger of necrosing but the very presence of necrotic tissue inviting superadded infection tends to spread the process and the surgeon maj make the bold decision to detach the flap, excise the d>mg segment and re inset it m the hope that removal of the necrotic focus will give the flap a fresh start His problem is then to decide where the line of excision should be, and a good indication of the v lability of a flap margin is the state of dermal bleeding its colour and quantity Such a drastic course is only possible if the flap has been planned with a margin of safet) and failing this, a conservative policy must be pursued, awaiting slough demarcation and separation When the resulting surface is favourable a split skm graft mav be applied but the disastrous effect of infection and fibrosis on the vascular attachment must be recognised and each subsequent step FLAPS, PEDICLES AND TUBES I09 requires redoubled care, and the use of delays etc It is un- fortunately true that a disaster of this sort during a flap transfer makes subsequent similar disasters much more probable Examples of tube pedicles A Acromio pectoral tube B Abdominal tube C Double abdominal tube with connecting bridge ready for tubing to complete the long tube pedicle D Tube pedicle of scapular region The unusual site was chosen to correct a post burn contracture of neck because the usual sites had sustained full thickness skin loss burning E Abdominal tube of unusual direction to he inset into the hand The direction wa3 chosen to suit positioning of the hand during insetting F Clavicular tube pedicle THE TUBE PEDICLE This is a bipedicled flap which when raised is turned in on itself to form a tube (Fig 4, 7) It is usuall) raised on the torso for transfer either to the head and neck or one of the limbs Once raised and tubed the pedicle is left to mature for 6 weeks during which time the axial vascular re orientation already HO FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY described is de\ eloped To give a good start to a vial redepfo)- ment tbe tube is placed along a line of venous orientation where possible The vascular link across the mid-line of the trunk is poor and it is seldom wise to construct a flap which crosses this line I he abdominal tube pedicle usuall) uses the thoraco-epigastnc Venous avis and the limiting length breadth ratio is generall) assessed at 2 J 1 If more length is required two tubes of standard length with a connecting bridge may be constructed In due course the bridge is delajed along its margins, raised and finally tubed to complete the ** double ” tube On the chest the acrom 10- pectoral tube pedicle is used particular!) in the male and I)ing as it does on a most efficient venous pathvva) 331 ratio of length to breadth is quite safe A tube pedicle is mov ed to its destination either bv attachment to a carrier, usuall) the wrist, which b) virtue of its mobility can carry the tube over a considerable distance in a single movement, or b) waltzing the tube. This latter method graduall) ‘ transfers” the tube by moving each end altematel) and is onl) emplo)ed when a carrier is unnecessar) or impracticable The abdominal tube pedicle is most often carried on the wrist, the acromiopectoral tube pedicle is reserved more for repairs of head and neck in which case it is waltzed on its upper attachment to its destination This attachment should be carried well out to the shoulder tip so that shoulder as well as head movement can be utilised to reduce tube tension A tube pedicle ma) also be used as a carrier for a “pancake” flap or “spade” (Fig 4, 6\) dela)ed on to one end, such a flap must be most carefully dela)ed m stages The alternative sites for tubes (e g Fig 4, 7D) are used much less commonlv, mainl) when the usual sites are not available because of scarring, etc Raising the tube (Fig 4, 8) Before raising the tube it is alwajs worth while to mark it out with Bonney s Blue and. tattoo appropriate points to correspond on each margin so that when the pedicle comes to be tubed the points are alread) there to be matched Although the amount of subcutaneous fat varies enormousl) m different patients the depth of the mam skin vessels remains constantly fairl) superficial, and this allows considerable thinning 112 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY to be earned out with impunity But no matter how much thinning is needed the pedicle should be raised initially in the plane between superficial fascia and muscle or aponeurosis, leav ing no fat on the resulting raw area This is done because it is technically much easier, gi\es an initial uniform thickness to the flap, v essels are few and more readily picked up for ligation, and the bed which results takes a free graft much better than would fat The hand holding the flap should be used to judge the amount of thinning required Touch gi\ es a much more accurate measure than \ ision alone The flap should be ele\ated over its full length or even a little beyond it and must be thinned uniformly until it tubes readily without tension Trimming off the fat along each margin eases closure of the tube and prevents little herniations of fat between sutures when the flap is tubed Haemostasis must be complete before tubing is begun A continuous “over and over” suture can be employed to tube the pedicle with a few preliminary interrupted sutures using the tattooed matching points before the mam suture is begun The interrupted sutures have the effect of distributing tension correctly As each end is approached the tension increases and tubing should be discontinued as soon as there is any suggestion of difficulty in bringing the skin edges together With the pedicle tubed the underlying defect if of any size is split skin grafted The pressure dressing of the graft must be carefully applied to get the necessary immobility and apposition of the graft without being bulky enough to embarrass the circu lation of the tube When the tube is small in size the underlying defect is closed by direct suture and the junction of the two axial suture lines is then best closed with a modified three-point suture Dunng the ensuing 6 weeks it is desirable to get all raw surfaces healed and the most difficult areas are at the junction of the graft and the axial suture line of the tube where a tiny granulation tends to persist Ingenuity may be required to keep the surfaces apart so that they can heal but the surgeon should be reluctant to embark on transfer of the tube until healing is complete Transfer to the carrier (Fig 4, 9) The usual carrier is the wrist and on it a cun ed trap-door of skin and superficial fascia which includes the superficial veins is elevated The raw surface which this creates is apposed to the Transfer to the w rut earner After marking out the line of incision and tattooing matching points (A) the end of the pedicle is raised giving a circular raw surface (B) A semicircular trap-door is outlined (C) on the n rist and raised (D) to give a circular raw area to which the end of the pedicle ts sutured (£} FLAPS PEDICLES AND TUBES 115 this The hinge along which the trap door is raised will be perpendicular to the desired direction of the pedicle Before detaching the tube it is wise to tattoo suitable points e g centre and margins of the pedicle so that fixing sutures to distribute suture line tension can be used The difficult healing point is where the trap door meets the axial scar of the tube and care in suturing here is adv isabie Interval care of the pedicle In the early post operativ e period the arm wrist and pedicle must be immobilised m an appropriate Attachment of abdominal tube ped cles to vuist carT ers sho ving radial and ulnar attachments position It is usual to wa t for 3 weeks before the next stage is begun but once healing is complete the patient must be encouraged to move to the maximum of his capacity all tl e upper iimb joints to massage the wnst inset and generally treat the ped cle in a moder ately cavalier fashion Physiological delay in preparation for the next stage of transfer can be started as soon as healing is advanced Tests for adequacy of circulation Tube pedicle transfers are tedious time consuming affairs and it is scarcely surprising that various tests have been developed to arbitrarily decide when an inset pedicle has developed an adequate vascular link up to perm t detachment of the other end for transfer The vascular link up across the inset can be isolated for testing by clamping off the other attachment of the tube Tests are of two types 1 Measurement of the passage of a substance across the inset and assessment of vascular efficiency in terms of this Atropine injected subcutaneously into the pedicle can be timed “4 FUNDAMENTAL TECHNIQUES of plastic surgem corresponding raw surface left when one end of the pedicle is detached From its earner attachment the pedicle obtains a new blood supply for the ne\t stage of its transfer The nvv areas of wrist and pedicle are made to correspond in shape and size so that complete shin closure can eliminate raw surface The best attachment provides the maximum of raw surface contact and resulting vascular link up and m this the important factor is the shape of the trap door The width of the raw surface which is theoretically that of the pedicle is constant but its shape can vary from a narrow ellipse to a circle As an ellipse approaches the circle in shape its circumference and area both increase and as a trap door more pointed than a semi circle creates its own problems the semi circular trap door is probably the best shape for the purpose It is usually stated that in dn id ng one end of a tube pedicle a straight transverse incision completing the rectangle of the flap should be used but such a straight end sutured to the curved raw area of the carrier creates distortion with tension on the central part of the pedicle and this is something to be av oided A sounder procedure is to make the end of the pedicle semi circular in shape so that the raw area of the pedicle is virtually a circle for which a correspondingly circular raw area can be created The trap door is best made a trifle smaller than the pedicle dimensions would indicate as this positively eliminates pedicle tension The correct size for the trap door can be ascertained easily b\ making a blood stained imprint with the cut end of the tube on the wnst A haematoma would prevent the rapid vascular link up which is aimed at and haemostasis is important The raw area res thing from the elev ation of the end of the tube is either closed by direct suture or more often split skin grafted The position of the trap door According to the plan of transfer the site will be the ulnar or radial aspect of wrist (Fig 4 10) and it should be placed so that the turning back of the trap door leav e> the raw area in one plane In this way the trap door lies smoothh back when sutunng is complete and the attachment as a whole runs cleanly off the limb The other variable is the angle of attachment and consideration of how arm and wrist are go ng to he at the next transfer and the angle which arm and pedicle must make as a result should decide FLAl « PEDICLES AND TUBES Hj this The hinge along which the trap door is raised will be perpendicular to the desired direction of the pedicle Before detaching the tube it is wise to tattoo suitable points e g centre and margins of the pedicle so that fixing sutures to distribute suture line tension can be used The difficult healing point is where the trap door meets the axial scar of the tube and care in suturing here is adv isable Interval care of the pedicle In the earl) post operative period the arm wrist and pedicle must be immobilised in an appropriate Attac) ment of abdom nal tube ped cles to rist carr era sho ng radial and ulnar attachments position It is usual to watt for 3 weeks before the next stage is begun but once healing is complete the patient must be encouraged to mo\eto the maximum of hiseapacit) all the upper limb joints to massage the wrist inset and generall) treat the ped clc in a moder atel) cavalier fashion Phjsiological dcla) in preparation for the next stage of transfer can he started as soon as healing is advanced Tests for adequacy of circulation Tube pedicle transfers are tedious time consuming affairs and it is scarce!) surprising that various tests have been developed to arbitrani) decide when an inset pedicle has developed an adequate vascular link up to permit detachment of the other end for transfer 7 he vascular link up across the inset can be isolated for testing b) clamping oil the other attachment of the tube 7 csts arc of two t)pes 1 Measurement of the passage of a substance across the inset and assessment of vascular efFcienc) in terms of this Atropine injected subcutaneousl) into the pedicle can be timed Il6 FUNDAMENTAL TECHNIQUES Or PLASTIC SURGERV for the development of its systemic efFects or the appearance of fluorescence of a histamine wheal on the pedicle can be timed following intravenous injection of fluorescein More recently the disappearance of the radioactive sodium isotope in the form of Na 24 Cl from an injection site in the tube has also been used 2 Measurement of the clearance rate across the inset of congestion created in a pedicle The first set of tests in particular measure quite indirectly and rather dubiously those factors which need to be measured, namely the ns a tergo of the blood entering the pedicle and the overall adequacy of the venous drainage The congestion test is a more direct inde\ of vascular efficiency since it more nearly imitates the state of affairs to be present when the tube is actuatly transferred It must be stressed that these tests constitute a single piece of evidence only and they must be used m conjunction with a general clinical assessment of the situation The effect of haematoma. A rapid vascular lmh-up over the maximum of area is desirable in any pedicle inset and the factor most likely to prevent this is a haematoma Haemostasis must be meticulous and a haematoma diagnosed clinically post-operativ ely should be evacuated if possible Not merely does it prevent vascular link-up, but it giv es rise to induration and loss of flexibility Transfer on the carrier (Fig 4, 1 1) This is essentially similar to the vvnst inset After severing the remaining abdominal attachment the flap is moved on its carrier to be inset into part or all of its destination It is not usual to aim at final disposition of the flap on the recipient area at this stage What is aimed at rather is attachment of the free end of the tube to a suitable segment of the recipient area having regard to the need to establish a vascular link-up adequate to nourish the flap when it is later detached from the vvnst to be completely untubed and inset It is therefore advisable to give the flap as big an attachment as is expedient with positioning of the wrist, etc To increase the raw area of the flap the tube is undone as far as required excising the scar of the tubing and thinning appropnately The raw area is measured against the selected FL\FS PEDICLLS AND TUBTS H7 segment of the recipient site and an appropriate area of $ktn is excised W here possible a small trap door flap can be raised from the recipient site to close off the raw area where tubing of the flap begins ngjin Completing the transfer After a further period of 3 weeks the pedicle is removed from the wrist the scar of the tubing is excised and the flap is opened It is found on opening the tube that an axial line of scarring has I ic 4 II Transfer of tube pedicles on wrist earners Note in each case the large segment inset to preside a vascular attachment adequate for the nest transfer developed along its centre which prevents it from untubing readil) "With the tube partiallj opened it gives the appearance of a well defined laver like deep fascia and onl> excision or at ver) least deep multiple longitudinal scoring of this lajer will permit the flap to untube complctel) and spread to its original dimensions \\ hen the flap is spread out and thinned if ncccssarj the amount of skin to be excised is defined and removed so that the flap can be sutured in position It is not alwajs safe to complete the transfer and spread the whole pedicle in a single procedure The detached wrist inset mav then be set into its final destination leaving the still tubed central segment of the pedicle (rig 4, 12) to be untubed and inset 3 weeks or so later once both ends have an efficient vascular attachment The wrist trap door is sutured back in its original position It is less easj to return to its original situation than one might expect, for the trap door n ill be found to have shrunk somew hat and the se\ cral w oun d edges ha\ e to be mobilised to achiev e closure IlS FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY A good suture lme is often difficult to get but m this time fortunately works wonders in most cases Waltzing a tube When a tube is being waltzed (Fig 4 13) the procedures \ ary from those described for the carrier method only in the siting of Double attachment of a tube ped de pr or to final insert ng Closure of fistula (A) b\ acrom o pectoral tube nset into a re cep on area (B) immedia el) anter or to the fistula The double attachment s made b in etting the other end (C) immed ately poster or to the fistula pr or to untubing and closure of the defect (D) the trap door with a view to ach e\ ing the maximum of movement in the des red direction commensurate with the minimum of kinking and tension during both the current and the subsequent transfer THE DIRECT FLAP The direct flap is raised with or without prelim narv delays according to its dimensions and directlv sutured to the defect The raw area left when the flap is raised is closed by direct FLAPS, PEDICLES AND TUBES 120 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERT suture jf small otherwise a split shin graft is applied Meticu lous planning in rexerse is necessary to avoid the tension hinh mg and shearing which are so disastrous and also to ensure that the patient is given as comfortable a position to maintain as possible The direct flap should aim to get as much as possible of the flap m contact with the defect at the initial transfer leaving the minimum to be attached later and a good principle is to make the flap so that any tendency to movement pulls the flap on to the defect rather than away from it In limb flaps the effect should be to wrap the flap around the limb E\en in the direct flap there is always a pedicle though it is frequently \eiy short compared with the remainder of the flap The longer the pedicle the greater the range of permissible mobility of recipient on donor site and the greater the safety factor against tension etc On the other hand a long pedicle reduces the length breadth ratio and in effect narrows the flap from a xascular point of \ lew Those seeming lrreconcilables can both be met on occasion by making the base of the pedicle broader than the segment which is to be inset so that a broad pedicle is combined with a reasonably long one Avoidance of raw areas (Fig 4 14) As already described pedicles are often tubed to eliminate raw areas Similarly it is desirable though not always possible to eliminate raw areas during other types of flap transfer — excluding those of face — and this can be done either by using a trap door or a split skin graft or a combination of the two Use of the trap door A reception flap from the margin of the recipient site is raised and sutured to the flap and/or skin graft Such a trap door flap should be as short as possible as it consists of tissue of the defect and tends to be scarred and avascular Use of the split skirt graft W hen a trap door is not possible the split skin graft covering the flap donor site can be made longer so that it lines the pedicle segment of the flap where it would otherwise be raw Despite the use of these devices greater or smaller raw areas frequently persist and in difficult situations are virtually inevitable FLAP'S, PEDICLES AND TUBES 121 Division of the flap Whether a reception flap or split-skm graft hai e been used an acute angle of fibrous tissue is nearl) alw a> s built up at the junction of recipient area and flap (Fig 4, 15) so that the flap when divided Fie 4 , 14 Methods of avoiding raw areas during the iransfcr of a direct flip A reception flap when available may be raised from the margin of the recipient area or the skin grift used to cover the donor site of the flap maj lie extended to line the pedicle segment does not inset natural tj into the remaining part of the defect The flap as a result has to be dissected ofF the defect and thinned a little, at the same time excising the fibrous tissue of the "angle" to allow it to sit nicclv into the remaining defect Such dtsscction though minimal, does have an adverse effect on the \ ascular supplj and marginal necrosis of the flap is apt to result Because of tins 122 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY it js often advisable to delay the flap before dividing it complete!) though a dela) causes the usual induration which follows any incision and a neat suture line when the flap is finally inset ma) not be achieved initially It is fortunate!) remarkable how the flap settles m with time and the scars improve in appearance. A dela) used in this context does of necessit) leave the limbs Fic 4, is The angle of fibrous tissue usuallj built up at the junction of the flap and the recipient area which has to be excised to allow the flap to sit into the remainder of the defect The dissection involved in this has an adverse effect on the blood supply of the flap margin in their immobile position for a further week or so and this ma) sometimes be undesirable When the pedicle has a residual raw area too a dela) means a fresh incision in an area which cannot be made surgically clean and one which an unavoidabl) awkward position ma) make difficult to keep as clean post operative!) as one would wish An alternative then is to detach the flap completel) FLAPS, PEDICLES AND TUBES 723 without attempting an inset This has the same effect as a delaj and while waiting to inset the remainder of the flap in 7-10 dajs limbs, fingers, etc , can be mobilised as required Practice of the Method in Various Sites The upper limb. In major resurfacing of the arm and hand, the usual donor site is the trunk and the flap must be planned so that with the limb m a comfortable position the flap “wraps round” the limb In the forearm the limb is most comfortable in the neutral position , extreme pronation or supination is difficult to maintain Because of this the base of the flap is best made superior where the defect is radial and inferior where the defect is ulnar so that in each case the natural tendencj of the limb to move downwards and outwards from the trunk “wraps” the flap round the recipient site rather than pulling it away from it Similar considerations arise in flaps applied to the wrist and dorsum of hand, though on occasion a direct flap from one forearm to the other hand is used and then the broad principles described for cross leg flaps appl> Cross-arm flaps together with the other types of flap used jw Hand Surgery are discussed in detail in Chapter Se\en The lower limb. The direct flap used in the leg and foot is the cross-leg flap where the skin of one leg is transferred as a direct flap to co\ er a defect of the other leg, the appropriate parts of the limbs being approximated b> suitable positioning (Fig 4, 16) 124 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY The donor sites are limited to 1 Middle two-thirds of the length of tibia In this segment the site must not include the shin directly over the tibia lest failure of the split shin graft applied to the secondary defect should leave bare tibia to complicate the transfer Usually flaps are outlined just behind the subcutaneous surface of tibia based in the direction found to suit best w hen the procedure is planned 2 Lower anterior thigh To use this site successfully the defect requiring the flap must be in the \ lcinity of the heel or ankle (Fig 4, 18c) since in all but the acrobatic these are the onl) areas capable of read} approximation to the donor site on the thigh Indeed even with the ankle and heel the position required of the patient takes a degree of agility seldom found in the a\erage adult The site as a result has very limited usefulness In theory a proximally based flap should have a more normally directed vascular flow but in the distally based flap the main direction of the \ascular flow remains along the axis of the limb even if reversed in direction and therefore the direction of the base is not of great significance Disruption of normal flow is likely to be greater m the side based flap Unless the length breadth ratio is unusually fa\ourable it is advisable to delay cross leg flaps and the delay can include as a stage elevation of the flap so that perforating veins may be divided The donor leg of the flap should be avoided as a source of the spl t skin graft w hich cov ers the secondary defect for the dressing of the donor site will naturally raise the venous pressure of the leg and such a rise however small tends to increase congestion of the flap and helps to set off the cycle of congestion oedema kinking etc unless extreme care is exercised IMMOBILISATION DURING FLAP TRANSFER When a transfer is to the upper limb or head and neck elastoplast must be relied on in conjunction with sand bags pillows etc to keep the parts suitably positioned (Fig 4 17) When the transfer is to the lower limb whether tube pedicle on the wrist or cross leg flap immobilisation by plaster of Pans FLAPS PEDICLES AND TLBES 125 is much more effective for it takes altogether from the patient the onus of maintaining his position Plaster does nevertheless impose its own. discipline on the surgeon and it must be used with care 1 he plaster of Pans can be applied at the time of operation but prefabrication has undoubted advantages These procedures The method of fixing the arm dur ng transfer of a d rect flap lo the upper limb cross leg flaps especially arc among the more evading in plastic surgery at all phases — in planning in execution and in post operative care The position of the limbs must be maintained from the moment of inserting the first suture joining flap and recipient site to the final division of the pedicle 3-4 weeks later Holding the limbs during suture and subsequent immobilisation is an unrewarding and most fatiguing task With ample able bodied assistance application of the entire plaster cast at the time of operation mav be feasible and satisfactory but when 126 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY such assistance is minimal all concerned will welcome anj thing which can speed-up the process of post operative immobilisa- tion Speeding up is best achieved bj prefabricating the plaster cast The prefabricated plaster Prior to the operation, and with the limbs in the position to be maintained post-operativelj to permit accurate moulding of the plaster to the muscular contours, lengths Examples of prefabricated plaster fixation during cross leg flap transfers of encircling plaster are applied at strategic points so that, strutted together post-operatn ely (Fig 4, 18) eg, with lengths of broom- handle, the whole sjstem is held ngidlj immobile in its correct position Added lengths of plaster and struts maj be used but seldom are more than three or four needed The flap is best left exposed while the struts are being applied so that its position can be watched carefully , the slight contamination with plaster has not been significant In this situation one of the transparent plastic dressings can usefully be emplojed to protect the suture line With a pedicle on the wrist the arm plaster is the really important though most difficult segment of the sjstem and a 128 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY presence indicates a need to persist with active exercises rather than discontinue them, a need for reassurance and not rest. ROTATION AND TRANSPOSED FLAPS To cover a primary defect it may be possible to move the adjoining tissue, any secondary defect being closed by direct ROTATION FLAP Without Back-cut With Back-cut TRANSPOSED FLAP primary Defect Fic. 4 i >9 a era ms of rotation flaps with and without back-cut, and transposed flap. suture primary into the When the tissue is rotated into the •.died a rotation flap; moved laterally transposed flap. Most flaps combine Varees and a particular flap may be predominates (Fig. 4, 19). FLAPS PEDICLES AND TUBES 129 These flaps cannot adequately be described in print even with a profusion of illustrative examples (rigs 4, 20 21 22 and 23) Fie 4 20 Transposed /bp need Miat mg * tcs an of jadent vices n n'» ng avsrr whtr of skull Flap outl ned after tr angulat on of defect to be left when the ulcer (A) is \v dcl> esc sed (B) The (lap transferred (C) and the secondary defect covered with a spl t sk n graft Fhc final result (D) for every flap is an individual problem In the face particulirlv judgment in selection and imagination in design come with the I 128 rUNDAMENTAL TECIIMOUES OF PLASTIC SCRCERl presence indicates a need to persist unh actnc unerases rather than discontinue them, a need for reassurance and not rest ROTATION AND TRANSPOSTD FLU'S To CO'. er a pnmarj defect it ma\ be possible to mote the adjoining tissue, anj seconds rj defect being closed b\ direct ROTATION flap Without Back cut With Back cut TRANSPOSED FLAP Fie 4, 19 Diagrams of rotation flaps with and without back cut and transposed flap suture or free skin graft When the tissue is rotated into the primary defect the flap is called a rotation flap, moved lateral?) into the defect it is called a transposed flap Most flaps combine both principles in varying degrees and a particular flap rruv he called by the principle which predominates (fig 4, 19) FLAPS PEDICLES AVD TUISLS 129 These flaps cannot adequately be described in print e\en with a profusion of illustrative examples (Figs 4 20 21 22 and 23) t30 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY experience bom in surgical apprenticeship Present discussion is concerned to explain the principles underlying the construction of Fig 4 2-» Rotation flap with lack cut used follow ng excis on of rodent ulcer invoking outer table of skull Flip outlined (B) after tnangulai ng the defect to be left after excision of the ulcer (A) T inat result (C) with the secondary defect split skin grafted using such a flap should remember aheays that a major i oscular disaster ts liable to leatc a deformity far greater than the one the flap teas intended to re//ete Principle of rotation (Tig 4, 24) As the flip w ill he rotated into position it should in theory be the arc of a circle of which the pnrran. defect is a segment, flap and defect together making a 1^2 FUN Z>A MENTAL TECHNIQUES OF PLASTIC SURGCR\ half-circle The defect is thus approximately triangular in shape and the narrower the triangle the less does the tissue ha\e to rotate to fill the defect With the flap rotated into the defect and sutured in place there is a difference of tension on the two Fic 4, 23 Combined rotation — transposed flap used following excision of a pre malignant keratosis of cheek Flap outlined (A), raised (B C) and transferred (D) with direct suture of the secondary defect sides of the suture lme and ideally this difference of tension is distributed e\ enly all along the suture lme It follows that the larger the circle of the flap, the longer is the line along which the tension difference can be distributed and the smaller the difference at any particular point Apure rotation flap has no secondary defect but often, depending FLAP* PFDICLES AND TUBES 133 on the laxity of the tissues and the degree of rotation required the primary defect cannot be closed pureh b\ redistributing the tension and a further incision has to be made to allow the flap to mo\e laterally as well as rotate into the defect W here the curve of flap and defect makes a half circle the incision is made as a Without back cut With back cut Small Flap - /arge tension d ffercnce c\ Effect of flap size on differential tension. Tic 4 24 Diagrams of rotat on flaps show ng the effect of the back cut and the influence of the s 2e of the flap on lens on d fference back cut along the diameter line This enables the flap to move b\ a combination of rotation and transposition into the defect This back cut creates a secondary defect which is closed where possible bv direct suture failing this b} a free skin graft Principle of transposition Even m its purest form the trans posed flap does piv ot on an axis and so does rotate but the major movement is lateral The primary defect is again triangular and 134 FUNDAMENTAL techniques of plastic surgery the rectangular flap constructed along one of its sides raov es lateral!) ^hen transposed into the defect One purpose of the manoeuvre is to avoid tension of the suture line closing the primary defect and so the secondar) defect cannot be directly sutured since this would recreate the very tension the flap was designed to avoid It must therefore be closed either b) a free skin graft or by a further plastic procedure which wall perm t closure without tension The vascular limitations of local flaps When a local flap is moved there tends to be a line of tension along the base or obliquely across the flap and this if excessive is extremel) prone to cause necrosis of the tissue beyond it A back cut will usually eliminate the tension line and allow the flap to move readily into the defect but it must he recognised that the back cut also reduces the vascular area of the base and thus the circulatory reserve These two factors — vascular area and tension— must always be balanced and to know just how much one maj be reduced to eliminate the other in a particular situation is a measure of experience Probably tension is a more potent producer of massiv e necrosis than reduction of vascular area The enhancement of vascular efficiency produced by a delay fends to be offset by the fibrosis which it causes particularly if the delay includes elevation of the flap for the flexibility of a flap ahvay s helps to reduce tension Planning the flap (Fig 4 25) It must be stated at the outset that the guiding principles to be laid down apply to rotation and transposed flaps in their classical forms and do not necessarily apply to many of the flaps used m certain parts of the head and neck These wall be discussed separately The first step with either type of flap is to triangulate the defect The defect must be capable of hemg outlined as a tnangle with tw o sides approximately equal and this may necessitate the sacrifice of normal tissue to make the triangle A defect w hich for any Teason cannot be triangulated is seldom suitable for a standard local flap As a rule the two equal sides of the tnangle are longer than the third which forms the base and in visualising the procedure and the flap appropnate to it the defect must be thought of as being closed by moving one of the equal sides as a side of the flap across to the other 136 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY square and in a difficult situation its dimensions should be even more favourable The classical shape then is square and in planning it must first be recognised that the point around which the flap will pivot m moving is not the apex of the triangle, but rather the other side of the base of the flap From this it follows that if the flap is to dose the defect the distance from the ptv ota! point to the far point A Correct Design Incorrect Design Fic 4 *6 The design of a transposed ftjp Compare the well designed flap where the distance from the pivoi point to A equtls that to B and the transfer is consequentl} « ilhout tension and the incorrectly designed Rap where the distances ore Unequal because the flap ts too short ond the transfer can only be achieved with tension of the triangle must equal the diagonal length of the flap from the pivotal point Before anv incision is made the pivot point must be clearlv defined and the distance from the pivot to each point of the flap compared with its estimated distance to the same point when transposition is complete \\ here the distance before transposition vs shorter there will be a line of tension along that line when the flap is transposed The diagonal length o f the flap from the piv ot point m the square flap is the one particuhrl) liable to be short The distances can be equated in two wavs t Initial design The flap can be made longer than the side of the triangulated defect so that us actual diagonal length FLAPS, PEDICLES AND TUBES 137 before and estimated diagonal length after transfer are equal and the actual shape and dimensions of the flap can be stmilarl) decided bj considering actual lengths before and estimated lengths after This is the best method and the one to be used in planning the flap If, however, it should be found when the flap has been cut that the length is inadequate and a tension line will result, an alternative but on the whole less satisfactorj device must be used, namely the bach cut Indeed to hate to me a back-ad ts an admission of bad initial design 2 The back cut As the flap has been cut its length is fi\ed and so the point of pnot must be altered to reduce the discrepancies of length and a bach-cut achieves this Though it does reduce tension it must be remembered that it also reduces vascularity and so should be as small as possible Sometimes it proves possible to reduce the tension without significantly reducing the vascularity by cutting onl> the actual tissue responsible for the tension leav ing at the same time the blood vessels intact In shin w ith a good thichness of superficial fascia section of the shin alone may give enough relaxation, while in the scalp cutting the galea aponeurotica maj have the same result In the face and neck such differ- ential section is seldom feasible, but fortunately blood supply and tissue availability are usually so good that the problem is less hhelj to arise m an acute form The transposed flap is especially useful w here a secondary graft is not contra-indicated for cosmetic reasons and so it is used mainly outside the face With it the size of the secondary defect approximates in area to the primary defect and it is covered with a spht-shin graft Any attempt to close the secondarj defect bj direct suture destroys the whole point of the flap transfer for the reason already given The rotation flap (Fig 4, 27) The classical rotation flap has a near-circular curse and, used with or without a back-cut along the diameter of the semi circle, the curve of the flap is able to rotate along the corresponding curve of the other side of the incision outlining the flap It is sutured in its new position with a degree of differential tension, but when a back-cut is needed in addition, as it frequently is, a triangular 138 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY secondarj defect is opened up and the flap reallj then combines rotation and transposition \\ ith the mov emcnt of cun e on cune there is no defect in the region of the actual flap except at the back- cut The larger the flap is made the less the difference of tension at each point of the flap and most difficulties arise from planning on too small a scale rather on too large The point around which the flap pivots hes approximately mid waj between the apex of the triangular defect and the end of the back cut, and the distance from this point to each point of the flap must equal its distance to the point to which it will be sutured after rotation The pivot of the rotation flap cannot be pin- pointed with the accuracy possible in the transposed flap for the rotation flap does rely to some extent on the flexibility of the tissues It is because of this that it general) work* best when the skin is lax and flexible Outside the head and neck the secondarj defect is routinelj split skin grafted and in actual practice suturing of the flap is stopped as soon as tension is clearly present and the graft is applied In the head and neck the secondary defect is usuallj closed bj direct suture with the proviso that such closure must not create tension along the base of the flap sufficient to jeopardise its blood supplj If direct closure is impossible a graft must be used The problem of the secondarj defect left when the flap is rotated can sometimes be solved in quite a different wa) (Fig 4 , 28) which is best understood bj considering the relative wound lengths Ft APS, PEDICLES AND TUBES 139 The length of the flap is less than that of the wound to which it has to be sutured and the two lengths can be equated either bj increasing the length of the flap side, which is the effect of the bach-cut, or reducing the length of the outer line of the wound to make it equal the length of the flap Excising a triangle of tissue opposite where the bach cut would normal!} be has just this effect and is feasible when there is enough tissue available to allow excision In the event the flap is rotated without bach cut and as suturing proceeds it becomes obvious that there is some redundant tissue on the outer side of the suture line and eventually Fic 4, 28 A method of avoiding a seconds?} defect which can sometimes be used when the shin is lax and tissue available in consequence Fig 5, 19 shows the method in practice a dog-ear develops, excision of which leaves the two sides equal m length It is only in the head and neck that there is spare tissue available to allow this method to be used The dog-ear of the triangulated defect If the pivoting took place round the apex of the triangulated primarj defect the resulting suture line would be quite flat but with the pivot point elsewhere both in the rotated and transposed flap there tends to be a dog-ear left at the apex of the triangle when the flap is moved Though it raaj be possible to deal with this m the usual way at the time of flap transfer, it should alwajs be left for subsequent excision if its removal would m an} way jeopardise the blood supply of the flap TLAPS OF HEAD AND NECK Although classical local flaps are often used m the head and neck the extremelv rich vascular pattern coupled with a laxitj of tissue greater than elsewhere in the bod} permit the planning and execution of flaps with scant regard for the usual requirements A common t} pe is the long narrow pedicled flap based on a known vascular system. X40 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY Examples are the temporal flap based on the superficial temporal vessels (Fig 4, 29), and the Indian forehead flap based on the supra orbital vessels (rig 4, 30) In most of these the greater part of the flap is used as a carrier A pedicled flap based on the superficial temporal vascular pattern The post traumatic scarring with loss of e>eball and severe damage to ejchds (A) is replaced by the flap (B) the forehead defect being spl t skin grafted \Y ith the carrier segment returned to its original site the final result is shown without (C) and with (D) the prosthesis (inset) of the terminal segment which alone is set into the defect Three weeks suffice for the inset segment to establish its vascular supplj Iocallj , the flap is divided and the unused carrier segment is returned whence it came It is fortunate that the copious viscular pattern permits the carrier segment to be left raw on its deep surface without fear of disastrous sepsis for the narrowness of these flaps relative to their bulk would make tubing impossible Where the defect left by raising the flap cannot be closed by FLAPS, PEDICLES AND TUBES 141 direct suture a spltNsbn graft is used for temporary co\er and this is removed in due course when the carrier segment is returned to its original site The graft covering the donor site of the transferred segment is usual!) left as 1 permanent 142 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCER1 and care spent on this step will prevent the disaster of the flap which only reaches its destination with difficult} or not at all Flap transfer The precise thinness of tissue required m the defect can often be duplicated m the flap with safet} so abundant is the blood supplj but in passing from the part of the flap to be mset to the carrier segment the flap should be broadened and thickened to allow of maximal blood suppl} For the purposes of flap thickness the head can be divided into the vault of the skull as far as the margins of the galea aponeurotica where the blood suppl} is entirely marginal and the routine plane of dissection is the loose areolar tissue deep to the galea and the remaining skm which of course has an additional deep blood suppl} As a result delav of a scalp flap need never include elevation In the forehead the terminal flap ma) safcl} be made thm enough to leave the frontalis muscle behind and in the face and neck it may include the minimum of fat but in both instances it should thicken fairly rapidl} to the more usual plane of dissection In the neck this plane is best deep to plat}sma and includes as much of the superficial venous s}stem as possible Returning the carrier segment During the 3 weeks the carrier segment tends to tube itself in two distinct wa}S b} fibrotic contraction of the raw surface and by marginal epithehahsation When returning it to its original site the fibrous tissue must be excised completelj to undo the tubing and to get the best suture line the marginal epithelium should also be removed Even so the flap tends to remain a trifle narrower than when it was onginall} raised and when suturing it back in position after removing the temporar} graft the scalp ma} have to be mobilised quite widel} to bring the skin edges readil} together This is most likelv to occur if the graft has been applied with the scalp in the naturall} retracted position it assumes when the flap is raised It is possible to overcome retraction of the scalp b} suturing the temporar} graft under slightly greater than normal tension This reduction of the grafted area to a minimum makes the subsequent replacement of the flap much more straightforward and free of tension Follow ing div lsion an d return of the carrier segment the insetting FLAPS PEDICLES AND TUBES 143 of the transferred segment of the flap is completed and as m the direct flap a little thinning of the margin may be necessary to allow it to sit neatly into the defect Raps based either on the superficial temporal or supra orbital \essels tend to be the most useful m the repair of sizeable defects of the face above the level of the mouth — generally of the nose cheek and lower eyelid The first point to be considered in planning is whether the skin cover is to be hairy or not for this will decide whether scalp or forehead must provide the skin Thereafter the appropriate pedicle can be selected using jaconet to give the exact outline A supra orbital based flap works well for symmetrical nasal defects defects of one side can be cohered with either type supra orbital or temporal When the defect involves cheek either alone or with part of the nose the temporal flap is usually more satisfactory as the length of pedicle gives the flap a longer reach While it is often necessary to provide lining as well as skin cover the methods used to provide such lining are beyond the scope of this book and will not be discussed further Flaps are often required to repair the defects which follow excision of neoplastic lesions simple premalignant and malignant which are unsuited for repair by direct suture or free skin graft They may also be used to replace a free skin graft used for primary repair which is unsatisfactory cosmetically This subject will be discussed m more detail in Chapter Five In acute trauma as described in Chapter One flaps have a ■very limited use and should be attempted only by an experienced plastic surgeon BIBLIOGRAPHY Flap planning in reverse Gillies H D (1932) The des gn of d rect ped cie flaps But med J 2 1008 Vascular adjustments in flaps Douglas B &. Buchholz R R (1943) The blood circulat on in ped cle flaps An 1 Surg 117 69a German W Finesilveh E M &Dams J S (1933) Establishment of circulation in tubed skin flaps Arch Surg (Cl tcago) 26 27 PART 'I WO THE SURGICAL APPLICATIONS CHAPTER TIVE General Surgery T HE need for plastic surgical methods ingeneral surgerj arises in man} different \va} s and the onlj factor common to all is that shin requires to be replaced Shin loss ma} ha\ e resulted from the pathological process itself, from the surgical attach on it, or from a combination of both Consideration of the various \va\s in which the need for repair arises will be concerned particular!} with the influence of the pathological condition on the surgeon’s approach and how it dictates the t}pc of repair necessar) A few miscellaneous conditions defy classification but most examples of shin injur} or loss requiring replacement fall into the broad categories of traumatic, infective and post-surgical. TRAUMATIC SKIN LOSS Trauma can be thermal, mechanical and radiational. It is not proposed to discuss thermal trauma as a separate entit} for an adequate discussion would entail consideration of aspects outwith the scope of this booh but much of the discussion on the granulating area and its shin co\er is direct!} applicable to the care of a full-thichness shin loss bum Mechanical Trauma Mechanical injur} may denude am shin area but the parts particular!} prone to mjun of this t}pc are the scalp, the limbs and the scrotum. The scalp The usual mechanism, less common with shorter hair st}lcs and a more widespread use of suitable hair-enclosing caps in industry, is for the hair to be caught in machinery am Ling part >47 I4 8 fundamental techniques of plastic sunrnn or all of the scalp It js an injun of females The avulsed segment maj be partiallj or complete!} avulsed If only partly aztilsed the flap should be preserved no matter how small its pedicle and should be sutured bach m position after suitable toilet shaving etc The blood supplj of the scalp is so good that much more of the flap mav survive than the size of the pedicle might suggest Once dressed the area should he left untouched for a week bj which time a good demarcation line will have developed between viable flap and slough The slough can now be excised without delaj while it is still dry and rclamcl) sterile To await natural separation is a mistake If there is no contra indication excision can be followed b) the application of an immediate split skm graft Tailing that closel) set sheets of skin can be applied 4 or 5 dajs later The mam contra indication to the immediate graft is the inclusion of the pericranium in the avulsed flap the treatment of this complication is described below When the segment has been completely azulsed it should under no circumstances be sutured back in position There is no prospect of such a free graft taking and the optimism of the surgeon watching and hoping will onl) delay the renun al of the inevitable slough Treatment depends on the plane of avulsion The usual plane of cleavage is through the loose areolar tissue deep to the galea aponeurotica and the pericranium which this leaves intact makes an excellent bed for a graft It should be completelj covered with split skin sheet grafts as a pnmarj measure (I ig 5, 1) Probablj the crucial point of technique is to avoid too much pressure in appljing the dressing There is no give in the skull and too much pressure will cause ischaemic necrosis of the pericranium and give rise to a slough which when removed leaves the umlcrljmg bone bare When the forehead is involved the smooth iiniformlj thick graft of the dermatome giv es the best cosmetic result 1 1 can be applied either as a pnmarj procedure or sccondanlv after excising the pnmarv graft (Fig 5, 2) More rarefj the skuff is either part?} or completed denuded of pericranium over the area of avulsion and treatment of the bare area of skull becomes quite different more tedious and difficult Bare outer table of skull will not take a graft and methods have to be adopted to produce bleeding bone which will granulate (r 3) The fastest and surest waj of getting the bone to r»c s, i Immediate cover With split-skin grafts follow me scalp avulsion when the pericranium is intact showing the raptdit) of healing A Appearnnec two weeks after iryur> II Seven weeks after injur} showing complete healing Tic 5, 2 Use of a dermatome split skin graft in sccondir} replacement of forehead skin whrn the cosmetic result of the pnmarj graft is unsatisfactorv A Hie poor covmctic result of pinch grafts applied pnrruril) II Hep! torment with the dermatome graft 150 FUNDAMENTAL techniques of plastic surgery granulate is to chisel away the outer table of skull With ex- perience an immediate split skin graft can be got to take on such a surface but little is lost by waiting until reasonable granulations ha\ e developed Chiselling has frequently to be repeated as small areas fail to granulate The whole procedure is extremely tedious for both patient and surgeon The end result, too, is much less satisfactory as the lack of mobility and cushioning under the graft make it susceptible to minor trauma Fic 5,3 Healing following destruction of the pericranium In this example destruction was by burning but the sequence of events is similar when the skull is exposed by avulsion of the scalp A Bare outer table of skull B Patchy granulations four months later C State of heal mg thirteen months after A show ing areas of instability No hair grows from the avulsed area and this maj call for subsequent surgery The position can sometimes be improved by moving a flap of any remaining normal scalp to the front of the scalp to provide an anterior hair line The hair growing back from such a flap brushed appropriately can co\er the bald area and though never quite natural gives a better result than most w igs Attempts have been made to apply grafts cut from the avulsed scalp m an attempt to get hair to grow but to date the results have largely been negative The limbs Extensive loss of skin from a limb is most often the result of a wringer or roller injury which causes degloving Although this is becoming a much more common injury it is clear, judging from patients referred at a later stage to plastic surgery units that the condition is less well known than it deserves to be CENERAL SURGER\ The usual cause is either the catching of a limb in power driven rollers, eg the wringer of a washing machine, or the running over of a limb by a pneumatic tyre, both of which produce a sudden severe shearing strain (Fig 5, 4) The results differ only in seventy Bony or joint injury may be associated, but the characteristic feature is the flaying of the skin The word ‘Physiological’ 'Anatomical deqlovjng deg loving Fig 5,4 The mechanism of deglovwg (after Slack) “flaying ” must be qualified font may be anatomical or physiological If anatomicall) flayed the skin is actually tom off, if phjsiologi cally, the skin surface is intact but there is complete disruption at the level of the deep fascia with undermining At the same time the vascular network of the skin is damaged more or less severely bj the sudden extreme tension set up by the shearing strain, usually sexerely enough to cause ischaemic necrosis of skin and superficial fascia It must be realised that initially there may be little eudence clinically of the seventy or extent of the v ascular and skin damage — unless it is tested for The clinical sign to be looked for in such an injur) is failure of the skin to blanch when pressed with return of colour when the pressure is released or, when a skin edge is present, absence of dermal bleeding Both signs indicate absence ij2 fundamental techniques of plastic surcert of active skm circulation Over the u hole undermined area the skin must be regarded as suspect and the surgeon must decide what is viable and can be sated, or dead and to be evcised It is positive evidence of circulation which decides viability and if there is not positiv e ev idence of v labihtv the skin should be excised |?vVPi5^ UL :v m a Fic s,5 Deglo-wng of leg primarily resurfaced with sheet split skm grafts A Ettent of injury B First dressing seven days later C Healing with full function A clearer picture of the shin area which retains an active circulation can sometimes be obtained by observing the distribution of the reactive hyperaemia which develops when a sphygmomanometer placed proximal to the injured segment is released after being left inflated for 5 minutes— the tourniquet test Here as in the scalp early grafting should be earned out (Fig 5, 5) Although the general condition may ov ershadow the local and dictate at least temporary delay a local assessment should be made as soon as possible, the non viable shin being excised and the resulting defect split-shin grafted after suitable GENERAL SURGERA r 53 debridement if necessary As much skin as possible should be applied with priority to the flexures and areas with underlying tendons Damage to muscle is often present and excision of necrotic tissue must be as radical as is consistent with the presen ation of such vital structures as arteries and nerves Only on a healthy base will a graft take and residual necrotic tissue mil mean gra t failure Associated bony or joint damage is fortunately not common The treatment of the two injuries occurring together is discussed on page 181 The exposure of tibia or ulna which are the bones most liable to be bared ma\ also add to the difficulties but m such i situation a universal solution is not practicable and consultation between orthopaedic and plastic surgeon is desirable The avulscd skin is often relatively undamaged and in those circumstances it may be possible after all the subcutaneous fat has been carcfullv excised to re apply the skin as a whole skin graft This measure cannot be recommended for routine use It requires experience and judgment to select the appropriate case Abov e all things should not be allowed to drift until the slough separates slowly and spontaneously If the injury has not been recognised primarily and only becomes obvious when a slough forms the slough should be txcised as soon as demarcated and the area grafted To wait bevond this is to wait for the infection iness and delay of slough separation with consequent grafting difficulties The scrotum The catching up of the scrotal skin with the trousers on a horizontally rotating shaft is the usual cause of avulsion of the scrotum In the past the denuded testicles were implanted in the thighs or covered by a flap but it has been shown that tlicv can be covered with a free skin graft Often the avulscd skin is available and rclam ely undamaged and it has been successfully used as a whole skin graft after careful excision of the dartos muscle layer As an alternative the use of a split skin graft has been described T hese techniques should onh be used by an expert , success calls for experience and skill Such cases should be referred to a plastic surgery unit m the first instance 154 fundamental techniques of plastic surcery Radiational Trauma The forms of radiational trauma which may call for plastic surgical methods are radionecrosis and radiodermatitis These conditions are late results of irradiation (Fig 5, 6) and man) of the worst examples are seen in patients treated inexpertly for con- ditions in which radiotherap) has either long since been abandoned as a therapeutic measure or in which the actual method of treatment has been radical!) modified, as for example m thyrotoxicosis, tuberculous cervical adenitis, sycosis barbae, acne vulgans, lupus vulgaris haemangioma and many others W ith a greater awareness of the dangers of radiation and more expert use of the various techniques these late complications are less common but they still do occur ev en in the most careful hands The area particularly prone to develop radionecrosis or radio- dermatitis sufficiently severely to merit surgical treatment is the oral cavity and its environs when a carcinoma has been treated by radiotherapy The ear and the post mastectomy scar are also sometimes involved In both necrosis and dermatitis the constant factor is general avasculanty of the affected area and this influences the surgical approach in two ways 1 Unless the area is excised deeply beyond the damaged zone, the resulting granulations tend to be poor and the chances of take of a free skin graft either at the time of excision or subsequently are poor z The suture holding properties of therapy damaged slun are bad and the tissues are slow to heal Which tissues have borne the brunt of the damage will depend on whether the skin or deeper structures have been the primary target of the radiotherapy and this must be assessed before deciding on the type of repair The mobility of the skm is a good clinical indicator of whether the deeper structures are involved If skm alone is damaged, excision and replacement with a split- sfon graft or whole skin graft is usually satisfactory If, on the other hand, an ulcer is present, it may be assumed that deeper tissues are grossly mvoh ed In such a situation, a blood carrying flap wall be needed and excision of the ulcer should be as radical as is technically feasible deeply, clearing therapy -damaged skin at the margins If bone is m\ olv ed a sequestrectomy may be done Fie 5,6 Examples of mdionccrosis and mdiodenrutitis A Radiodermatitis of neck following radiotherapy for thyro toxicosis B Bad 10 necrosis of chin floor of mouth and mandible n ith fistula, following irradiation of squamous carcinoma of floor of mouth The tube pedicle raised for repair of th<- ulcer is shown in Tig 4, 6A C Radionccrosis of chest wall resulting from radiotherapy following radical mastectomy for carcinoma showing central deep ulceration with exposure of ribs and surrounding radio- dermatitis D Radiodermatitis following radiotherapy for acne vulgaris Rodent ulcers of right lower *\ctul and right pre auricular region are present and since this record was made multiple rodent ulcers have been removed as thev appeared A further example of radiodermatitis is shown in Tig 4, “A following radiotherapy for *j costs barbae 156 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERV simultaneously Unfortunately where sequestrectomj is needed the margins of necrosis are difficult to define and this is especial!) true of the mandible which is often the bone involved Before any ulcer is treated a biopsj must be considered to exclude malignancy since this will naturally influence the extent and depth of excision In this connection it is w orth remembering that a malignant ulcer developing m therap) damaged shin is seldom clinically typical and recurrences of shin tumours following radiotherap) are very liable to masquerade as radionecrosis until biopsj reveals the true state of affairs When a post irradiation tumour recurrence is being excised the entire area of therap) change should be regarded as suspect even although the visible recurrence is only a small segment of this for the area of therap) change represents the surface extent of the original tumour INFECTIVE SKIN LOSS With the adv ent of the antibiotics shin necrosis from fulminating cellulitis is uncommon but it may still occur from an uncontrolled infection b) Str py ogenes or as a result of post operative progressive bacterial s)nergistic gangrene which gives rise to the chronic undermining ulceration brought to surgical notice by Meleney With either infection the problem of shin cover arises once the infection has been controlled and in both instances two conditions must be satisfied— the granulations must hob healthy with evidence of marginal healing and the bacterial flora must be innocuous Probabl) stamp grafts closel) placed are the appropriate t)pe of repair they are certainly the safest POST SURGICAL SKIN LOSS A post surgical shin defect may arise as a result of excision of a tumour of shin itself or one involving shin secondaril) as in carcinoma of breast Shin grafting has also been used m the treatment of certain anal conditions Neoplasia of Skin It is essential in treating malignant shin tumours that the surgeon should separate in his mind at least the excision of the tumour and the repair of the defect so that the tumour will be GENER \L SURGFR\ 1 57 treated according to its nature and extent without regard to possible problems of repair The head and neck apart the policy of skin replacement following excision of a mal gnant tumour of skin is a straight forward one The cosmetic aspect is of minor significance as a factor in deciding type of repair and the split skin graft applied immediate^ after excision is the usual method emplo\ed The free skin graft has the advantages in this field of being technically easier and of not obscuring the field when recurrence is being watched for One of the few situations wh ch m ght call for the primary use of a flap would be one where excision leaves a surface which cannot take a free skin graft for example cortical bone or tendon The ad\antages of flap co\er must then be weighed against the degree of certainty of adequate excision The pros and cons of immediate flap repair arise with greater urgency in neoplasia of head and neck and wall be considered m detail then but much of the argument applies to the problem elsewhere in the bod) In practice the flap has a very minor role m providing immediate skm cov er follow >ng excision of a malignant skin tumour Neoplasia of the Head and Neck This subject is a vast one and will be discussed only as it affects the surgical procedure As in other fields of surger) pathologv should gov ern practice So many malignant neoplasms of head and neck are local conditions that adequacy of excision becomes of paramount importance and thoughts of subsequent repair must never influence excision if this wall in any way con travene pathological considerations The merits and dements of pnmary definitive repair following excision thus emerge as a matter of overall policy Considerations of age general cond tton absolute certainty of excision etc may all influence an individual decision discussion here is concerned with the general problem The defect left when a trial gnant lesion has been excised can usually be repaired either by a free skm graft or a flap Often the flap would gne a much better cosmetic result and soleh on those grounds would be preferable The free skm graft on the other > 5 S fundamental techniques of plastic sukcem hand, uilh the cscept.on of the post auricular uholc slm graft around eje and nose gnes a related} poor cosmetic r4.lt Despite this its merit on pathological grounds is unassailable for its use allows inspection of the operative field for an> recurrence and permits carl) biops) of an) area which is remote!) suspicious Recurrence deep to a flap would be disastrous!) large before its Tic 5 7 Acrjlic prosthesw as permanent repair of nasal defect following rxc sion of a rodent ulcer The ope and general condition of the patient were con sidcred to preclude defimme repair with the patients s own tissues I'll rt her examples of prosthetic repairs are shown in Figs 4 29 and 5, 19 presence would be sufficient) evident chnicaH) to tempt the surgeon to interfere with his fljp A proper polic) then is to repair evcisional defects where at all possible with free skin grafts, including where necessar) the wearing of prostheses When the area has been watched for 9-18 months according to the local and pathological circum stances until any recurrence js like!) to have appeared, a re assessment can be made and the definitive repair proceeded with if this is felt desirable A permanent prosthesis sometimes giv es the best result and if so ma) be considered as the definitive ‘ repair’ (Fig 5, 7) Circumstances may on occasion necessitate departure from tins GENERAL SURGERY 159 principle, but they must be overriding before departure becomes justifiable Examples of such circumstances are 1 Where a gross salivary fistula will be produced by the excision This applies especially to older patients who do not tolerate a fistula well, m such circumstances it is wise to aim at primary definitive repair In any case such excisions usually involve the full thickness of cheek or lip and marginal recurrence alone need be watched for 2 \\ here bare skull will be produced by an excision a rotation flap is needed Fortunately deep clearance can be more assured here than in most other situations 3 Where deep clearance is clinically definite but during excision temporo mandibular joint or mandible is exposed Neither is capable of taking a free skin graft and the tnsmus produced if either is left to granulate before grafting makes a flap necessary 4 Where it prov es impossible to achieve complete excision of a tumour it may be worth while to rotate a flap for skin cover so that further radiotherapy can be given Excluding the free skin graft, and there are no special points to distinguish graft usage m the head and neck from elsewhere except the technical problems arising from the need of the patient to breathe and eat, the types of repair can best be illustrated by reference to the various parts of the head and neck involved The lips The type of repair depends on whether a full thickness defect results from the excision requiring lining to be transferred with the flap employed Full thickness defects V-exctsion and direct closure (Fig 5, 8) Up to one third of either lip can be excised and directly closed with- out unduly constricting the mouth Suturing as w ith all lip repairs 1a in tv\ o lay ers Undermining of the skin for | inch or so defines the muco-muscular lav ers which are united with vertical muco- muscular mattress cat gut sutures These sutures take the strain of the repair and allow the skin edges to be closed without tension or tendency to im ert It is usual in cleft lips to incorporate a Z-plasty of the red margin to giv e a smoother margin to the lip <6° FUNDAMENTAL TECHNIQUES OE PLASTIC SURGERY but in cancer surgerj it IS preferable to use straight suture for this leaves a single line onl) to be watched for recurrence Insertion of muco Completion of muscular cat gut suture suturing Fig 5 8 Squamous carcinoma of lower I p treated by V-excis on with direct closure showing the two layer method of suture which is rout nely used in repa ring the full thickness of the lip Many of these patients show diffuse pre malignant change of the exposed area of the whole length of red margin and this can be treated bj excising the affected strip mobilising the mucosa inside the lip and advancing it round to meet the skin — the lip shave (Tig 5, 9) When the main lesion is regarded either as Exeis on of red marqin and mucosal advancement — "lip shave" Combined V excision and “lip shave" Fig s «j Excision of pre malignant red margin of lower lip and repair by lip shasc As ind catcd this method of repair can be combined with a V ctcis on if necessary red margin after the V excision has removed the area of fnnh clinical carcinoma The V-hp sxiitch flap This consists of the transfer of a full thickness flap, pedided on the labial vessels, from one lip to fill a corresponding!) shaped defect of the other lip (Fig 5, 10) The lG° FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERA bul m cancer surge,} ,t ,s prefemble to use slough, suture for this leases a single line onlj to be Hutched for recurrence Lines of excision marked out Insertion of muco muscular cat-gut suture Completion of suturing Fig s. 8 Squamous carcinoma of lower Up treated by V-eidsion with direct closure showing the two layer method of suture which is routinel) used in repairing the full thicfcness of the lip Man) of these patients show diffuse pre-malignant change of the exposed area of the t\hoIe length of red margin and this can be treated by excising the affected strip, mobilising the mucosa inside the lip and advancing it round to meet the skin — the ‘ hp- shave” (Fig 5, 9) "When the mam lesion is regarded either as GENERAL SURGER\ prc malignant or not jet in\asi\e the lip sha\e can replace the V excision and it can. also be used to remo\c the prc malignant neoplasms of the lower lip arc much more common it is the defect of the lower lip which usual!) calls for repair A fan-shaped flap based on the labial \essels of the normal lip and of depth corresponding to the defect is constructed and routed to fill the defect 1 he sccondar) defect is closed b) taking up the slack present on the check It is fortunate that most repairs are earned out in the older age group where adequate slack in the cheek is usualh available 164 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCER1 The flap can be rotated until flap red margin meets lip red margin (Fig 5, 12) but this reduces the size of the mouth consider- ablj An alternative method which is particular! j useful in repairs following extensive lip resections is to suture the skin and mucosa of the flap along the line of resection and use it as the red margin (Fig 5, 13) This often leaves a larger mouth single fan flap rotating red margin to meet red margin showing the reduction in the size of the mouth which results The patient refused further surgery to enlarge the aperture of the mouth In practice the best method is that in which the flap lies most easilj It maj happen that the angle of mouth has to be opened up secondanl) if the orifice is too small This should if anything be underdone as the opened segment tends to gape in a rather unsightly manner Bilateral fan flaps can be used to repair a defect of the entire lower lip (Fig 5, 14) In such a situation skin to mucosa suture must be used to reconstitute the red margin as the alternative method approximating red margins would make the orifice of the mouth impossibly small GENERAL SORCERY 165 Skin and muscle defects. The potential source of material for repair depends on the size of the defect When the defect is of anj Recurrence of squamous carcinoma of loner lip following radiotherapy excised and repaired by single fan flap with reconstruction of the red margin by advancing mucosa size tke main sources are the forehead and neck For the upper lip and naso-labial region (Fig 5, 15) bridge pedicles of forehead skm based on the temporal \essels are usual Rotation or trans- posed flaps for the lower lip (Fig 5, 16) are usually taken from the neck either with a secondary free skm graft to the donor site or direct closure if the skin is sufficiently lax rn fundamental techniques of elastic surcer\ The nose Tor small defects particularly where there is no loss of lining the forehead is the usual source of skin *1 o cover the upper nose and adjoining canthil area a flap based on one set of supra orbital Exc s on of almost the entire lo er I p for squamous care noma In ual closure by sk n mucosal suture and subsequent repair by bda eral fan flaps vessels can be rotated leaving a forehead defect which can usuallj be closed by direct suture (Tigs 5> anc * 4 3°) The reach of this flap is strictly limited and be\ ond it the i sual complication which arises in considering repair if the defect is of full thickness is need of lining The methods of coping with l68 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY this problem are be>ond the scope of this book If no lining is needed, the forehead bridge pedicle flap based either on the temporal (Fig 4 , 29) or supra-orbital \essels (Fig 18) is most useful though with a smaller defect a naso-labial flap may be possible The cheek The most useful method of repair using local tissues is the inferiorlj based rotation flap bj which pre auricular skin is brought forward (Figs 5, 19 and 4 , 23) The defect posteriorh Rodent ulcer overlying and invading the body of the mandible, excised and repaired by transposed flap A Extent of excision and delay of flap B Transfer of flap with development of web across the chin and Z-plasty outlined C End result after Z plasty can usuallj be closed but when a free skin graft « needed its refatn ef) inconspicuous position gnes a good cosmetic result The method works best where the lesion is long and narrow or is readilj triangulated An alternate e method with horizontal lesions of the lower cheek is to ad\ ance neck skin in association w ith extensit e under- mining m the neck The resulting scar tends to stretch very badlj and the method cannot be recommended The ear Quite unnecessarily complicated reconstructions of ear following limited excision are described and reasonablj good results can be GENERAL SURGERT l6g Modified Glabellar Flap incorporating Z plasty Fie 5 17 \ ery extensive molloscum sebaceura (confirmed by b opsy) excised and repaired by s mple glabellar flap A modificat on is also shown wh ch s useful when there is d fficully in closing the secondary defect of forehead Fic 5 18 Penetrat ng rodent ulcer of med al canthus and adjo n ng nose (A) excised and repa red pr mar lv v th a spl t sk n graft (B) After a period of folio up w thout recurrence cfefin C -e repa r by forehead br dge ped cle flap ( nset and C) Result folio v ng return of br dge segment (D) The pat ent refused to hate further tr mm ng etc of the flap small enough to be excised leaving enough ear to make recon struction worth while a simple V shaped full thickness excision with the apex towards the meatus and the limbs of *7 2 rUNDAAIENTAL TECHNIQUES OF PLASTIC SURGERY GE \ ER 41 SURGERY m the \ of equal length should be used gn ing adequate tumour clearance Closure of the defect bj suturing the limbs of the V together in the two skin layers produces some distortion but in most cases is entirely adequate cosmeticallj (Fig 5, 20%) When good prosthetic facilities are available an alterna tive method may be to leave the defect fully displaced bj suturing the skin on the two sides of the ear together The residual ear can be made the basis of a partial prosthesis (Fig 5, 20 b) 2 The peripheral lesion can be dealt with bj adequate clearance of the tumour followed b} an additional excision of ^ inch of cartilage to allow the skin to be closed direct!} ov er it I here should be no hesitation however in excising the ear completel) and if necessar} of removing adjoining skin etc A free skin graft does well in this site making an appropriate incision to correspond to the meatal stump (Fig 5, 20 n ) The ear is one of the easiest appendages to replace efTectiv el} either w ith a partial or total prosthesis Carcinoma of Breast Radical mastectomy involves removal of a large area of skin and further skin loss ma} be caused b} suturing the wound under tension This has led to an increasing awareness of the value of the free skin graft following mastectom} The usual graft used is a thick split skin graft and the essential point of technique is to ensure dose and immobile contact of graft and chest wall The skin flaps are liable to be mobile and it is unwise to rcl) on them alone for anchorage Various methods are described to give added fixation but as simple as an} is to make the graft 01 erkip the defect so that it extends on to the flaps The usual anchoring suture with a bite through intercostal muscle or rib periosteum will fix both graft and flap to the chest wall B> leaving the sutures long as usual a tie over bolus dressing can be used to giv e the necessar} local immobiht} I he flaps can be independent^ drained or treated b} continuous suction as preferred the graft still remains a separate entity fixed to the chest will >74 fundamental techniques of plastic surgert Anal Surgery In the treatment of fistula in ano anal fissure and anal stenosis it is usual practice to leave at the end of the surgical procedure a widely open saucensed or fiat raw area to epithehalise slowly from its margins By grafting this area considerable reduction in healing time can be achieved Indeed the methods used to cure the pathological condition and present its recurrence namely the eradication of fistulous tracks the prevention of pocketing by wide skin excision and the conversion of the wound into a single widely open cavity are the very points one w ould stress m lay mg down principles of successful grafting under such conditions The natural resistance of the perineum to its normal flora would appear to extend to skin grafts and infection is seldom a problem given good contact between graft and recipient site and no dead space full of haematoma or tissue fluid to provide a culture medium As haematoma is the most likely cause of graft loss adequacy of haemostasis becomes the deciding factor m whether the graft can safely be applied immediate!) on concluding the anal surgery or whether it is better applied as a secondary pro cedure 2 days later The superficial flat surface can readily be grafted immediately but the deeper cavity left after the treatment of an ano rectal fistula where haemostasis is more difficult is probably better left for secondary grafting When secondary grafting is being used the wound can be packed for the 2 days and then gently cleared of clot to receive the graft With either method massive cat gut ligatures should be a\oided The actual method of applying the graft does not differ from elsewhere a split skm graft overlapping the margin of the raw surface is used with the usual tie over dressing A thin split skm graft is preferable because of its better taking properties The secondary contraction of such a graft is of no moment and such contraction as does occur can be turned to advantage in reducing the depth of the grafted cavity After the first dressing on the fourth to fifth day all dressings are discarded and the bowel can safely be opened if the area is gently and carefully cleaned afterwards The use of a skm graft need not influence the administration of intestinal antibiotics as a co\ er during surgery of the anal condition It is a fortunate coincidence that the surgical steps essential GPSeRAL SUfc6£ltt >« for good graft take should be those necessary to eliminate the particular pathological condition for it means that partial or even complete failure of the graft to take is not an irreparable disaster local treatment can if necessary proceed as though a graft had never been used MISCELLANEOUS CONDITIONS Varicose and gravitational ulceration The part placed by plastic surgical methods is onl\ a very minor facet of the treatment of this condition The provision of skm cover does not influence the fundamental circulator} deficienc} and unless this is coincidentally treated grafting is a complete waste of time ulceration will inevitabl} recur Onl> the methods of providing skm cover will be considered here Grafting the ulcer Using the methods ahead} described the granulations must be prepared for grafting Of these measures pressure is probably the most important Marginal healing and an absence of Str pyoqeues indicate the time to graft and the best graft is a thin sheet split skm graft Once healed measures to combat the circulator} defect must continue Grafting raa) also be used merely as a preliminary to excision and grafting of the whole ulcer bearing area Excision of the ulcer bearing area This is a much more ambitious project and failure is correspondingly more serious The ulcer with its surrounding pigmentation and induration is e\ci«ed en bloc to the lev el of deep fascia The fascial plane of cleavage in the zone of the ulcer is usually poor or virtually absent and in the vicinity of the medial malleolus this can make d ssection extremely tedious and difficult as exposure of a tendon is something of a disaster for over it the graft will fail A thick split skin graft is usually applied with a tie over dressing which must be most carefully applied o\ er the instep for graft failure here 1 ea\ cs hare tendon and the creeping of granulations over sloughing tendon is a depressing!} slow process Attempts to hasten matters by excising the slough only produce fresh slough of the tendon left Post operative immobilisation of the ankle is essential either by bulk of dressing or more effectively by plaster of Pans 176 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY Such an excision can be carried out while the ulcer remains unhealed but the clinical appearance and flora must be satisfactory and it is safer to get the area healed with a split skin graft before excising and grafting The success of radical excision and grafting m giving permanent cure is probably due largely to the destruction of the perforating vein blow outs which is inevitably part of the procedure Plantar vart (A ) exc sed and repaired by full th ckness graft (A,) Recurrence (B) at the margin of a graft appl ed at the t me of previous excis on of a plantar wart Plantar warts Fortunately the majority of plantar warts do not require ex cision and repair and such surgery is usually regarded as a last resort It may be required either because the wart has failed to respond to other methods or because of complications arising from the methods themselves in particular from over enthusiastic radiotherapy The warts treated by excision and repair are thus a highly selected group and a particularl) unpromising one It is scarcely surprising therefore that surgery cures only a percentage and it should not be lightly undertaken since a cure cannot be guaranteed The warts which give rise to symptoms common!) overlie the metatarsal heads particularly the second but any of the weight bearing sites may be involved When exc sion is considered desirable two methods of repair are possible Whole skin graft In most cases this is the easiest and best met! od (Fig 5, 21) and should be used unless previous treatment GENERAL SURGERY *77 e g radiotherapy has caused so much scarring that a bed sufficiently vascular to accept a graft is unlikely Skin from thigh or abdomen has an adequate thickness of dermis to provide a good pad Local flap Gross scarring is the mam indication for using a flap and such a flap must come from a non weightbearing area The source (Fig 5 22) is usually the side of the foot when the Fic 5 22 Examples of transposed flap repa rs after exc s on of plantar « arts. wart is near the margin or the plantar surface distal to the weight bearing ridge of metatarsal heads when the wart is on that site The secondary defect has to be grafted which explains why the flap must be tal en from a non weightbearing area IVith both methods the common cause of failure is marginal recurrence (Fig 5 2IB) Along the margin of the graft or flap though not encroaching on the actual tissue transferred the typical callosity gradually develops w ith return of sy mptoms In adequate removal is not the cause of recurrence for even the most radical of excisions may be followed by the gradual de\ elopment and spread of the recurrent callosity The infective aetiology of the lesion may explain the tendency to recurrence certainly much remains unknow n about the natural pathology etc of the lesion If there is no recurrence symptoms are usually completely relieved and even despite marginal recurrence the symptoms are M I?8 FUNDAMENTAL TECHNIQUES OF ELASTIC SLIiCFM often improved Measures lo a\oid Meightbearing on the area of recurrence maj suffice to gn e wrtualh complete relief Tic s. 23 Chronic axillary hidradcmt s treated b> exc lion of the mtoltcd ikm areas and replacement bj spf t skin grafts Hidradenitts This entitj is more common than is usual I) recognised It is an infection of the apocrine s\\ eat glands and ma\ affect an\ of the sites of these structures The most common site is the axilla {Fig 5, 23) and here it presents as multiple npparenth superficial furuncles spreading o\er the axillar) concautj ft is relatnel) GENERAL SURGERY m chronic anti, despite opening of the abscesses as the) de\eIop, sinuses form which flare up sporadical!). In se\ere cases the draining lymphatics become imohed in the inflammation and fibrosis When, in spite of conscnatne treatment, the condition has persisted long enough and is sufficientlj disabling to demand radical measures, the entire area of shin imolvement with the associated fibrosed subcutaneous fat and indurated ljmphatics must be excised The condition should preferabl) be as quiescent as possible before surger) is begun A thick, split-skin graft with a tie-o\er dressing is used to co\er the defect and an immobilising plaster of Paris shoulder spica ma> be added to gi\ e the necessary stability to the dressing BIBLIOGRAPHY Traumatic skin loss Balakrishnan, C (1956) Scrotal avulsion a new technique of reconstruction b> split skin graft Bnt J plait Surg 9, 38 Brown, J B &, Trxer, M P (1957) Peno scrotal skin losses, repaired by implantation and free skin grafting Ann Surg 145, 636 GinsON, T (1954) Traumatic avulsion of the skin of the scrotum and penis use of the asulsed skin as a free skin graft Brit J plait Surg 6, 283 Innis.C O (1957) Treatment of skin avulsion injuries of the extremities Bnt J plast Surg 10, 122 Robinson, F (1953) Complete avulsion of the scalp Bnt y plan Surg 5, 37 Slack, C C (1952) Friction injuries following road accidents Bnt vied y it, 262 Watson, J (1956) Loss of the skin of the scrotum treatment by free skin grafts Bnt y plait Surg 8, 333 Radiational trauma Brown, J B , McDowell, F &- Frier, M P (i949) Surgical treatment of radiation bums Surg G) me Obstet 88, 609 Routuedcf, R T. (1954) The surgical problem of local post- irradiation effects Brit y plait Surg 7, 134 Anal surgery UlcIies, E S R (1957) Treatment of ischiorectal anal fistula Aust NZ y Surg 26, 281 l8o FUNDAMENTAL TECHNIQUES Or PLASTIC SURCFIU Plantar warts Monroe, C W (1956) The treatment of plantar watts Plait rcrowtr Surg 17, 16S Chronic hidrademtis CoNWAt H , Stark, R B , Cumo, S Weeter J C &• Gahcia F A (1932) The surgical treatment of chronic hidratUnitts suppuratua Surg G\nee Ohstet 9^, 4 it CHAPIFR SIX Ot thopaedic Surgery S KIN cover in orthopaedic surgery is required because of tl e need for i stenle field during and after surgery of bone and joint In acute bony trauma with shin deficiency skin co\er can for practical purposes convert an open into a closed fracture with a corresponding drop in the probability of infection In the late treatment of trauma adequate shin cover permits an op rative approach without fear of wound breakdown and infect on When secondary surgery of n"rve or tendon is required good skin cover is equally necessary for similar reasons The care of the paraplegic has become a matter for the ortl o paedic surgeon and the surgery of decubitus ulceration will be considered in this context The problem of pressure sores extends to the non paraplegic but the principles of surgical treatment apply to both types of ulcer and they will be discussed together SKIN COVER IN BOM TRAinLi W hen shin loss is associated with bony damage the ty pe of skin cover possible depends on whether a fracture is compound to the skin defect The fractures most likely to be compound and associated with skin loss are those of the subcutaneous long bones particularly tibia and ulna The circumstances are often such that much damage to surrounding tissues occurs and there may be deglov mg anatomical or physiological of greater or lesser extent These factors affecting as they do the blood supply of the skin which is locally available for skin cover must be kept xn mind rn planning closure of the wound If the loss of skin is small primary suture may be attempted but with larger deficiencies tension of the suture line is likely and may lead to breakdown and infection of the wound A relaxing incision placed in the long axis of the limb and at some distance i8r 182 fundamental techniques of plastic SURCERl from the wound may allow the resulting bipedicled flap to mo\c across the limb sufficient!} to close the wound, the resulting secondary defect is covered with split skin Hovvev er, it must be appreciated that local tissue damage and degloving ma} hate so disrupted the blood vessels of the skin that this manoeuvre mav result in a large slough Such a procedure must therefore be carefully assessed, the relaxation incision must be placed at a considerable distance from the wound so that the flap his at least the safety of breadth and finall}, undermining of the skin is to be avoided as far as possible The procedure tends to work only when the defect could almost be closed by direct suture and it should be used rarely The rotation or transposed flap is not recommended in acute injury of the limbs Even under optimal conditions such flaps in the limbs must be planned and delayed most carefully and in fict are seldom used If the defect is large, the only possible methods of primary closure are the split skin graft or the direct flap — in the arm from the abdomen, in the leg from the opposite leg In the arm a direct flap applied primarily is not likely to pose any major technical problems other than those of achieving in adequate length breadth ratio in the flap by the methods described below for the cross-leg flap but in practice the need to use a primary flap in a compound fracture of forearm must rarely arise The muscular cover of the arm bones is normally complete except for a single border of the ulna so that with the fracture reduced the reconstitution of the soft tissues should almost always leave the fracture minimally compound and a split-skin graft might reasonably be expected to take over the entire area In the leg the problems are much greater The tibia has fully one third of its surface subcutaneous and a fracture is likelv to be much more extensively compound quite apart from the fact that associated skin damage tends to be much more wide- spread and severe The bony injury with skin loss takes three mam forms i The extensive degloving injury m association with any of the bone and joint injuries which can occur in the vicinity of the ankle or even of the knee The occurrence together of the two injuries is fortunately uncommon probably because they hav e quite distinct patterns of causation ORTHOPAEDIC SURGERX 183 2 The localised skm loss associated with a compound fracture of tibia 3 The shin loss initially unrecognised or possibly not present and only becoming apparent when the area is dressed This type of shin loss may occur even when the fracture lias not initially been compound The limitations of the cross leg flap in such a situation are very considerable It can only be contemplated m the otherwise fit young patient with unimpaired circulation to the other lower limb and joints capable of tolerating the necessary immobilisation The presence of deglovmg with shin necrosis much beyond ihe width of the subcutaneous border of the tibia and bevond its length completely rules it out The more localised the shin loss the more feasible is it likely to be Used in such circumstances it is liable to be extremely difficult technically and is by no means free from potential disaster Preliminary delays are not possible and so the dimensions of the flap must pro\ ide as large a margin of safety as possible A one to two ratio of length to breadth is desirable and the shin defect may have to be enlarged by excising adjoining normal skm if need be to accommodate a flap of adequate breadth The fracture must be simultaneously stabilised either by plating or intramedullary nailing whichever is appropriate and such a method can only be used if the fracture is seen soon after injury and adequate debridement can be carried out The number of patients who are suitable candidates is extremely small The alternative then is the split shm graft and it has to be used even although the surgeon is all too aware of its deficiencies m the circumstances The surface to be grafted with the exception of such bone as is bare, is likely to be capable of taking a graft and m preparing the surface all non viable tissues should be excised Such pen osteum as is alreadv stripped can be excised but intact periosteum, even if damaged, should not be removed Intact periosteum leaves the possibility of graft take while periosteum removed leaves only the certainty of graft failure With the bone and joint injury reduced the wound is debnded as just described In deciding the method of bony fixation whether by plate and screws intramedullary nail, or plaster of 184 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCFRV Paris alone the surgeon should appreciate the importance of absolute fixation of the fracture and realise that it is failure of adequate fixation which is more likely to lead to bony infection in such a situation than anything else Surface sequestration is probably inevitable from the begin mng in those areas denuded of periosteum In view of this the surgeon should do as little as possible to add to the area of bare bone by his manipulations Plates should be applied on top of the periosteum Open joints should be closed bv suture of the capsule if at all possible to present a surface suitable for grafting The split skin graft is then applied to the entire area as it would be if the injury was a simple degloving injury (sec page 150) recognising of course that it will almost certainly fail over the areas of bare cortical bone The graft can reasonablv be expected to take over a joint closed as described or even slightly open and it mav well bridge the fracture if it is well reduced and fixed though in actual practice it is not common for the site of skin loss to coincide with the fracture stte "N hen it does coincide however it is the presence of bare bone rather than the fracture which will determine take if fixation is good At the first dressing 7-10 days later the full extent of the skin loss can be assessed accurately and any residua! necrotic skin fat and muscle excised The general aim then becomes to prepare the area left uncovered to receive skin and as each part granulates to cover it with split skin Any internal fixation of the fracture should be left in place even if it is quite exposed until the fracture is at least sticky ’ Where bone is bare a local surface sequestrum will form and granulations can only be expected when it has separated It is not advisable to excise such dead bone as soon as it is recognised to be dead Excision at this point is likely to damage the blood supply of the bone which is left and a fresh sequestrum will form Spontaneous separation should generally be awaited Sequestrectomy should be carried out reluctantly and only when a good line of demarcation has formed Time may actually be saved in the long run by waiting for spontaneous separation for granulations will already be present and ready to be grafted when the sequestrum is lifted off "When skm loss is only recognised late the principles to be followed in providing skm cover 3re exactly those described OJITJtOIMEDIC StRGFHl above from the time of the first dressing unkss the ann and other circumstances fit the criteria laid down for the use of -1 cro s kt flap \ late problem of mi'ccd skm ind hon\ damage mn result from the fact that a sccondan orthopaedic procedure c g hone grafting cannot be carried out through a scarred or e\en fret «kin grafted area cspccnl!) tf the bont is normallv subcutaneous and ft r tint reason alone such scarring mav require replacement with a direct flap or tube pedicle Tl \!X>\ \\I) M u\r I\Jt \{\ When a nen c or tindon is injured in a-* ncnlii n with iMtr »vc loss of shm it is ncces«an to pro\nlc a coMnng of subcut im us tissue as well isshintoform 1 sat isf actors bed prior toamopir it i n of the nerve or tendon itself and a flip must be used is e Mr i he flap ma\ he transferred as a primarv pr<>cedurc m faw ur 1 le conditions altcrnati\cl\ it ma\ be u td second ink once prm irv healing his been achieved In a split shm graft In the upper limb a direct abdominal flip »•. u«irl while m the lower limb a cross leg flap mat be used for a localised shin ) s I lie large defect of lower leg or thigh most often requires an abdominal tube pedicle osiio\nruns It ts the unstable scarring of the meriting shm produced In ibrontc osteomyelitis, especially of tibia winch umiiIIn requires treatment Such an arei of scarring is scld< ni suitable for Iret skin grafting is it mu be ncccssarv to treat the bone either at tl e time of skin lcplacemcnt or subsequent!) and an abdommtl tube pedicle or direct flap is used when scarring is cxtenstvi lie infection must be quiescent before the transfer is ( cgun the best results tend to be achieved when the bom infection is burned out‘ and all that remains is the scarred unstable skm Operations on the diseised bone can be undertaken during flap transfers onk if the treated bone is to be covered immcdutclv and complctch hv the flap I$6 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY PRESSURE SORES Pressure sores occur m bedridden and in paraplegic patients In both the pathological processes arc essential!) similar and the cause is pressure sufficient!) se\ere and sustained to produce ischaemic necrosis of the skin The ulcers develop in areas where pressure is borne and where the pad of subcutaneous tissue is scanty The Non-paraplegic Pressure Sore Usual sites are the sacral area and heel, occasionall) the iluc crest The cause of the sore, i e the factor producing the immo- bility must alwajs be treated before considering active surger) of the ulcer , the patient must be capable of keeping off the pressure point Local treatment is aimed at getting the ulcer fit for spht-skin grafting W hen the time comes to appl) the graft the problem is usuall) a technical one of immobilisation and the ingcnuit) of the surgeon ma> be taxed to get immobilit) for the 4 da)s or so necessar) for graft take Where all other methods have failed, success has sometimes been achieved b) appl>ing closch set thin split skin stamps without an> dressings and mercl) protected against being rubbed off, the patient being kept on the surface opposite the sore If, despite local measures, the ulcer becomes static m size, more heroic measures maj be contemplated though the local condition has all too often to be subordinated to the general state of the patient This is particular!) true in sores of the heel where, in theor) , the alternative to a spht-skm graft would be a cross leg flap an alternative quite out of the question in the aged patient For the sacral area and ilium the alternative to the split-skin graft is usuall) a rotation or transposed flap, the practice of which will be discussed in relation to the paraplegic The Paraplegic Pressure Sore The areas particularl) liable to ulcerate lie over the pressure- bearing bon) prominences and in the paraplegic the ulcers tend to have much more of nn “iceberg” quaht) with extensive undermining and osteitis of the underl)ing bone or even p)°* ORTHOPAEDIC SURCERl 1S7 arthrosis m severe cases Treatment consists of cov erage of the completely excised ulcer with a movable pad of health} skin and subcutaneous tissue and simultaneous elimination of anv under l}ing bon} prominence which could act as a focal pressure point This latter procedure is essential as such prominences left untouched reproduce the mechanical pressure which caused the original ulcer During the acute phase of the spinal injur} the common sites are over the sacrum and femoral trochanter after recover} prolonged sitting in a wheel chair makes the ischial area the most frequent site Sacral ulcers tend to be large and flat with minimal undermining ulcers of the trochanter and ischium usuall} have a small opening leading into a large slough lined cav it} into the base of which the bon} prominence projects Healing of the anaesthetic tissues of the paraplegic is poor and with the slightest provocation the wound will fad to heal following surgerj Tension of flaps must be avoided haemostasis must be even more meticulous than usual cavities and dead space must be positively eliminated — failure in an} one means failure as a whole When the state of the ulcer permits a prehminar} split skin graft is worth using for although useless as a definitive procedure it enables the subsequent surgery to be done in a clean surgical field If skin loss is minimal excision and direct closure maj suffice but in most cases a rotation or transposed flap is needed It is seldom possible to avoid grafting the secondarv defect but the grift need not nccessaril} be applied at the actual time of flap transfer Indeed leav ing the secondary defect ungnfted (P ig 6, 2) is a useful way to ensure that a large area is aviilable through which an} haematorm can dram instead of collecting under the flap to cause tension infection and necrosis The grift can readd} be applied 7 10 da>s later When multiple sores arc present the planning of the several flaps required must be co ordmated carcfullj so that the stnctlv limited areas of available skin are used to the best advantage Sacral ulcers The approprnte t}pe of flap depends on the shape of the ulcer Frequentl) suitable is the bilateral rotation flap of buttock skin based on the inferior gluteal fold (Hg 6, 1) and this double flap is espcciall} useful in the sacral pressure sore in the non paraplegic lS 8 FUNDAMr\T\L TECHNIQUES OF PLXSTIC SURfinn patient If the shape and extent of the ulcer mike this flap unsuitable, alternates are the transposed or rotation flap based on the lumbar region (Fig 6 , 3 ), or as a last resort, a tube pedicle This latter procedure has man) technical difficulties, and should not be light!) undertaken Trochanteric ulcers Initial!) , the main ca\ it) of the ulcer is the trochanteric bursa and, if this alone is im oh ed. permanent closure m3} he ailuci ed without interfering with the hone Trequentli, honour, the trochanter and neck of femur project into the enut) and excision of trochanter and appropriate cortex of the shaft is then require* to let the soft tissues collapse and obliterate tb p ciut\ n t e most severe instances a p) oirthrosis of the b t ' sc raps ant once present, this complication is xirtin t0 trH c ORTHOP \FDIC SLRCE1U 1S9 Fic 6 2 A sacral and a trochanteric ulcer in a paraplrg c show ng repo r of tl c trochanteric ulcer A Hie ulcers B The trochanteric ulcer with the transposed flap outl ned C rhe wedge of protruding trod antcr esc sed to el m mte the focal point of pressure D E The flap transferred at operation and to days later prior to appl cat on of the split skin graft to the secondirv defect r The end result It is riot necessity always to graft the secondary defect at the time of tl e flap transfer In th s pat ent the secondary defect was grafted 113 days later us ng the exposed method of graft ng ■ 90 fundamental TECHNIQUES of P1ASTIC slRCFm " ithout amputation It ,s probalih mis' ,n such citcumstancts to concentrate on imprmmg the patient s general condition as much as possible and accept the permanence of the pe oarthrosis The ulcer is so undermined in most cases that free sbn grafting ,s seldom practicable, a transposed flap must be used (Fig 6, 2 ) Its precise situation and shape util depend on the He 6. 3 A sacral ulcer and bilateral ischial 1 leers in a parapleg 1. showing rrpa ,r °f die sacral ulcer b> a rotation flip of buttock skin and of the left nchul ulcer l } a transposed flap of thigh skin ITie \ raj slows the extent of the ischieetomj on the left side and the osteins of the right ischial tuberos tjf si7e and shape of the ulcer, uith the proviso alvvjvs tlut the secondan defect must be on in area free from subsequent weight hearing Ischial ulcers The cavitv of the ulcer consists of the ischial bursa but as the condition progresses and extends the ischial tubcrositv projects into the cavit) and becomes the scat of chronic osteitis \ major advance in the treatment of this tvpc of ulcer has been the excision of the ischial tuberosit) jotnth with the appropriate soft tissue ORTHOPAEDIC 'HJRGER\ I 9 I Fig 6,4 The transposed flap used to repair the defect left follow ing excision of the ischial ulcer and isch ectomy The cavity left by the ischiectomy js filled by detaching at its loner end and mobilising such hamstring musculature as is available Tir 6, 5 Secondary rotation of a pre\ iousU used th gh flip to repair recurrent ulceration The segment of flip beyond the line of the scar of the previous flip was delayed prior to rot 3 t on of the flap 192 FUND \MENTAL TECHMQL fcs OF PL\«TIC SL ItOFRt surgen (Hg 6, 3) E\en where the bone is not pathologically imohed it is. still the mam cause of the ulceration, certainly its excision has gTeatlj impro\ed the late results Wien planning the appropriate flap the patitnt should have the hip flexed to imitate the sitting posture to ensure that residual scars do not oxerlic the tuberosit) The best flap is ter) broadly based medially along the greater part of the thigh and mined upwards (Fig 6, 4) Its superiority o\er other possible designs is due to its generous dimensions which on the one liand make it extremely safe and on the other permit further rotation (I ig 6, •>) should the ulcer recur \n added advantage of this flap is that it enables the atrophic remnant of the biceps muscle to be detached at its loy'er end and mobilised by dniding approximately half of the perforating y cssela The muscle can then he rolled up and tucked into the dead space left by the ischicctamy It cannot be emphasised too strongly that the procedures which ha\e been described for the various types of decubitus ulceration are onh a small facet in the oyerall care of the paraplegic and mu«t be regarded as merely proyiding the ulcerated area with a fresh start in the best conditions ORTHOPAEDIC SURGERT *93 BIRMOGRAPin Skin co%cr in bony trauma Ci-ahkf, R , Bvncnt T C & Snirr. S (1059) VoJrtn Trends in Aendtvt Sure fry and \ledtarr London Jluttcnicrth ConMUI, J U (1956) Plwtic aurRcry m bone problems Flmt TfroMtr Sure 17, 1 29 Cmrntirr, J B (1955) Simultaneous replacement of «km and bone m tccetit Irk. injurtcs lint J plait Surg 7, 343 L«n Lnntprn 1 * (1050) The open wound m trauma Lancet 1 74s Skin co\cr in nerve Injunct I ntiMOvni j R & WaUUT A II (1943) Certain plastic problem* in the »urRcr> of peripheral nrnn Surg Gvrrr Obstei 76, 106 Pressure torct Cannon 11 OltMtt J J OS111. J \\ A SniNMrrk U (t95°) An approach Ut the treatment of pressure lore* fnn Surjj 133,760 Conwas It A CiRiititii 11 11 (195(1 Plastic surgical closure of decubitus ulcers in patients tv uh paraplegia A mrr J Surg 91,946 (uiTTMiN*. { (1955) Hie problem of treatment of pressure sores m spinal paraplegic* Uni J plait Surg 8, t«/j Qsiwjbni R (1955! lie treatment of pressure sores in paraplegic patient* lint J plait Surg 8, 214 \fmus M P A Hwm A O (t954l Hie patholoc) and treatment of picture sores in paraplegia 7 )nf J plait Vurg 7, 179 CHAPTER SEVEN Hand Surgery I X surgery of the hand it is essentia! to avoid the pitfall of seeing the hand in isolation ; the patient and his condition must be Mewed as one Before the surgeon embarks on a timc- consummg procedure he should gi\e serious thought to whether the end-result is going to justify the time spent in obtaining it, with the loss of work and income which the patient will suffer. He must remember that the verx procedure mav give rise to disabilities which could outweigh the possible advantages to be derived from it, he must decide whether the patient is intelligent enough to benefit from a complicated reconstruction and co- operate fully during its various stages \\ hen the alternative exists, a labouring man mat well be better off with a partial amputation or free skin graft of his injured finger than a more elaborate repair which will require immobilisation of one or more fingers or even most of the hand, wrist, elbow and shoulder The possible complication of shoulder, arm and hand stiffness is especiallj relevant to the older age group and mav be a major consideration m deciding the best procedure. When different modes of treatment arc equally feasible, it is often worth while to explain the problem and its possible solutions in simple terms to the patient so that he mav understand what each will entail in time, discomfort and end-result. In this wav co-operation during the actual procedure is more likely HAND INJURIHS In a hand injury the provision of skin cover In direct suture, free skin graft, or flap takes absolute priority. Skin cover alone halts the twin processes of infection and fibrosis which are parti- cularh harmful in the hand. The appropriate method of skin HAND SURGERY *95 co\er depends so much on the type of injury and its extent that an appreciation of the pathological features of the common injury patterns is necessary to an understanding of the principles of treatment Hand injuries are of three main types — cutting and slicing crushing and degloving As a rule an injur) helongs pre dominant!} to one type but on occasion an injury his the characteristics both of crushing and degloi mg Cutting and Slicing Injuries The extent of a cutting or slicing injury is clear cut and preliminary clinical assessment of damage is stra ghtfon ard Tendon and nerve damage are common and must be tested for but if one excludes the guillotine amputation uhicl is so often part of the injury associated bony damage is uncommon With the exception of the partially sliced off flap the skin loss is immediately obvious and even with it the devitalising effect of crushing is not present to add to the difficulty of decid ng chn cally whether the flap is viable It is not proposed to discuss the merits of pnmarv tendon repair discussion will be concerned rather with the means of providing such skin cover as will permit tendon repair or graft primarily or secondarily The method of repair can usually be decided on the basis of the preliminary clinical examination When there is no loss of skin direct closure with minimal excision of the wound margins should be carried out and 1 ere accurate suturing is as vital as in tl e face in order to acheve rapid healing with minimal scarring Skin loss must be made good by free skin graft or flap Tree skin grafts commonly of spl t skin thickness are generally used except when the raw area includes a structure which will not accept a free skin graft when the pulp of the finger tip has been lost and replacement requires more bulk than is present in a free skin graft or when subsequent repair of a deep structure such as tendon is contemplated In these circumstances flap cover must be pro vided and the type of flap depends on the site and size of the defect The possible flaps in the various circumstances will be discussed on page 210 196 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCERV The guillotine amputation which exposes bone is m man) cases best closed b> tnmming the phalanx until the tissues will close directl) over it without tension Free skin grafts do poorK O'er such stumps Failure of the graft ov er the bone is common and even with good take the scar adherent to the underljing bone tends to make the graft alwajs vulnerable Flap cover maj be indicated on occasion but in the majontv of patients amputation is to be preferred These considerations applj with particular force if one finger alone is injured When more than one finger is inv oh ed a more conservative approach is indicated and direct flaps from chest, abdomen or the opposite forearm must be considered Cross finger flaps are seldom feasible In the thumb a quite different approach is essential and the principle becomes one of extreme conservation Length must be maintained primarily at all costs There should be no excessive trimming of a traumatic amputation to get skin cover, a free skin graft or flap should be used as the local circumstances dictate The overriding need for conservation of finger tissue becomes less with passage towards the ulnar side of the hand Crushtng Injuries A crushing injur) maj varj in severit) and extent from the mildest subungual haematoma through the crush injur) of fingers with or without bon) damage up to the power press injur) which leaves a shapeless pulp of devitalised tissue \\ ith severe crushing there is often a “bursting’ laceration The brunt of the injur) is taken b) the soft tissues and bones rather than the tendons and nerves Loss of skin and soft tissue bv the actual lnjurj is not a feature but the real loss is often much greater than is at first apparent for disruption of blood vessels and dev italisation of tissues maj give rise to quite extensive skin necrosis This “ hidden ’’ damage ma> result in unexpected!) sev ere oedema post- operativel) and failure to guard against this oedema can further dev italise the crushed tissues particularl) if the) have been closed under tension Pre operativ e appraisal of the situation can be most misleading, onl) dunng actual cleansing and surgical exploration of the wound HAND SURCERX 197 can the injur} be accurately assessed The important points in such an assessment are 1 To determine what is definitely not viable The test already described (page iji) to assess the viability of shin must be rigidly applied here and non viable soft tissue structures excised quite ruthlessly This may mean excision of bone tendon etc when a segment of finger as a whole is judged to be non viable 2 With the non \ lable tissue excised tl e position is assessed afresh to decide which injured structures are worthy of retention and shin cover The detailed decisions which this implies must take into account such factors as the relative importance of the fingers and the thumb the age intelligence etc of the pat ent and the extent and seventy of the damage Much that has been said of closure follow ing guillotine amputa tion applies to the crushed finger With the sole exception of the thumb where the conservative approach always applies there are two opposing lines of argument On the one side the more severe the damage to the individual components of a finger — nerve tendon skin bone the stronger is the argument for ampu tation though the finger as a whole may be viable for the less chance there is of a useful d git resulting On the other s de the greater the damage to other fingers and the rest of the hand the stronger is the argument for retention of an injured digit even m the knowledge that it may be stiff It is in the crushing injury particularly that a useless finger should always be considered as a potential source of skin Filleted it can be used to cover a skin defect of adjoining dorsum or palm avoiding the need for graft or flap It is often stated that any lacerations which are present as part of a crushing injury should only be loosely closed with a few tacking sutures because of the tendency to post operative oedema In our experience when no skin has been lost much better results are obtained by suturing such lacerations as accurately as poss ble with many fine sutures leaving no raw areas between sutures When this has been followed by absolute immobilisation pre ferably with plaster of Pans and scrupulous post operative elevation for at least 48 hours oedema has not given rise to any trouble It seems likely that the oedema which is so feared is the 198 FUNDAMENTAL TECHNIQUES OF PLASTIC SURTEin result of failure to follow the latter part of the regime described ahoy e Compared with a cutting injury of apparently comparable secenty the crushing injury carries a much longer disability period and the results are poorer The problem of the associated fneture will be considered separately Degloving Injuries In degloung injuries of the hand as elsewhere the important pathological factor is injury to the \ oscular s\stcm 1 he anato mical characteristics of the palmar skin with its intimate attachment to the palmar fascia make it less lublc to degloung but when it is degloved the palmar aponeurosis is usually part of the tissue avulsed Elsewhere the plane is the usual one between superficial and deep fascia In the pure degloung injury damage to deeper structures is surprisingly uncommon though it must always he tested for The important surgical decision is that of \ lability and the tourniquet test may help (see page 1^2) Retention of skin is only justifiable on the basis of positne clinical demonstration of an actne skin circulation Skin which is not demonstnbly uablc must be excised The split skin graft is the usual method of co\ cr and should be used unless tendon bone or joint is exposed Tun if it is felt that subsequent coyer by a flap will be needed the split skin graft is still the primary oner of choice especially when more than one surface of the hand is imolyed Mhcn a direct flap is required primarily it should he designed to co\er as much of the raw area as possible w ith its initial attachment It is often difficult to estimate the precise skin loss immediately after the injury but o\er estimation is less serious than under estimation If at the first post operative dressing skin necrosis is found to be more extensw e than was expected and fresh slough is present it should be excised and replaced with a split skm graft forthwith In this way healing and mobilisation can be aclueycd as rapidly as possible Degloung of a single digit occurs occasionally and again with the sole exception of the thumb amputation is usually adnsablc The degloyed thumb should be inserted into a tubed flip raised on the opposite arm or trunk (Fig 7, t) A. Degloving of thumb with loss of distal phalanx, resurfaced w ith cross-arm tubed flap. The use of the graft covering the forearm defect to line the pedicle segment is shown, and the final result. 13. Use of a pectoral tubed flap to resurface a thumb degJoved in a crush- de gloving injur) which damaged the index finger beyond salvage 200 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERV Such a tubed flap may be the only way of salvaging the digit but at least until recently it did have its limitations and unsatis- factory features as a method of repair These were due firstl\ to lack of sensation in the flap which resulted in poor utilisation of the thumb by the patient and secondly to poor blood supply in the tube which resulted in poor tip healing when the flap was separated even after delays and later on inability to w ithstand cold The recently developed neurovascular island flap used in this situation has quite altered the picture In it the hemi pulp of a less important finger functional!) usual!) the ulnar side hemi pulp of the nng finger is raised pcdicled on the digital vessels and nerve back to their origin m the palm and tunnelled through palm and tube pedicle to a functionally suitable site near the thumb tip where it is sutured in position (Fig 7, 2) The residual pulp defect is free skin grafted This brings nerve and blood suppl) to the tip with marked improvement m utilisation and vascularit) The initial false projection of feeling in the flap slowl) corrects as re education takes place The technique is an exacting one and fortunatel) docs not have to be carried out as an emergency Patients requiring it should probably be referred to a hand surgeon Finger-tip Injuries Isolated finger tip injuries of all three types arc extremely common and the influence on treatment of the mil jnd pulp makes separate consideration of the injury necessary The pulp with its skm the phalanx the nail and its bed each or all may be damaged m varying degree The best treat ment by proximal amputation free skin graft or flap depends at least partly on the extent of the damage to each constituent In the extreme case the choice may be clear cut it is in the mixed injury that difficulty arises Severe crushing devitalising the nail and phalanx while the pulp is still viable is best treated by ampu tating the damaged segment and closing the defect with a flap of pulp skin For the slicing injury which removes either pulp skin or distal nail w ithout significantly damaging pulp or phalanx the obvious measure is a free skm graft The majority of injuries w hich lie betw een these extremes w ith loss of pulp and sometimes pf bone are capable of being treated by flap free skin gra t or 202 FUNDAMFNTAL TECHNIQUES OF PLASTIC SURCERX proximal amputation Themorebone iscxposcd the less suttableis the site for a freeshm graft for the reasons al read) gnen (page 196) The finger tip is one of the *cr) few sites where a whole shin graft has been successful!) used in pnmar) trauma but it has no real adtantage o*er a thich split skin graft Hie flap has its main use where there has been loss of shin and pulp but where bone and nail are undamaged The more bone has been lost the less good will be the result A finger tip injur) which occurs sufficient!) often to constitute a distinct injur) pattern is the partialis avuhed finger tip which 1 left attached b* a pedicle of pulp \\ hen the injur* rs of the crushing t)pc the nail is usually auilscd from its base with the flap the ungual process of the phalanx ma) be intact hut denuded or fractured with the distal fragment as part of the availed segment \\ ith a cutting t)pe of injur) the nail ma) be cut tnns*crscl* the distal half remaining attached to the a*u!scd flap It is astonishing how small the pedicle need be to ensuresun ival of the avulsed flap and a decision as to tiabilit) should onl* be made when the flap has been replaced in its correct position to eliminate the ad* erse effect of torsion and angulation of the pedicle on the blood suppl) of the flap If it is not viable treatment is as for a guillotine amputation With a vnble flap the fingertip should be reconstituted after minimal excision of wound edges and damaged pulp fat 1 he nail should be retained and replaced m its bed to provide splintage and to ensure a smooth nail bed ifter healing In this wa* the likelihood of distortion when the fresh nail grow s in is reduced W hen the nail has been transected care should be taken to get the edges accuratel* apposed for the same reason The Associated Fracture A fracture as part of a finger injur) adds weight to the argil ment m fa* our of amputation particular!) if there is sc*ere comminution Before such a finger is retained skm co*er must 6c tiemonstrab/j a* ads We and if it is not available the finger should he amputated unless damage to the remainder of the hand makes retention imperative As alread* emphasised the thumb is an exception to this general rule If such a finger is retained the fracture and the soft tissue damage which ine\itabl* accompanies it worsen the prognosis HAND SI BOFJt; 201 as regards function and add to the problems of treatment If the periosteum on either flexor or extensor surface lias been exten so elj damaged bv displaced bom fragments there is corresponding damage to the surface over which the tendons move and adhesions rap id! j develop between the two surfaces Internal fixation bj small plate or intramedul! ir\ bone peg has been recommended blit good results can be achieved bv relative!; simple methods without recourse to such fixation Die crjitnon of success is function rather than anatomical perfection of bonv contour With the shin closed the fracture should he reduced and the finger immobilised in the position of function PI istcr of Pans is not always nccessarv bulk of dressing often provides entire!) adequate splinting I he problem of subsequent care is to reconcile the needs i f the fracture and those of the soft tissues Irnrn ibdisjti n for the periods usual!; recommended for closed fractures meins a stiff finger and at the end of tint period the mature tend m adhesions added to the scarring of other soft tissues makes sub sequent mobilisation virtuall) impossible V compromise is neccssarv and it is our experience that b> the end of a wick to 10 da\s the fracture is sufiicicntlv sticky to permit gentle active exercises within the painless range of movement M ;c ments arc progressivelv increased at the end of the second wick and bv the end of the third week n full regime of exercises emit instituted \\ hen dressings are still required for the skin component of the injur) these should be is light os possible to allow the maximum of unhindered movement In this situation Iuhcgau? is most useful in providing good cover with a minimum of rostrum from sheer hulk of dressing uicinr siRorm Plastic surgical principles apph also m elective surgery < f tl c hand both in the surgerv of approach to deeper structures and in reconstruction following injurv congenital anomilv etc The pi icing of scars is important in the surgerv of approach but it 1 m i much wider application in relation to grafts and flaps mil will Ic discussed in relation to all three In the late 206 fundamental techniques of plastic surgery well recognised that incisions along the middle of the palmar aspect of a finger are contra indicated in general but given such a scar a Z plasty can alleviate at least the contractural result Use of the Z-plasty Contractures The Z-plasty is only useful in the well defined fairl) narrow linear contracture The diffuse broad contracture requires the importation of skin bj flap or graft The bow string Fic 7 s The absence of major wr nkhng along the lateral 1 ne compared \ th both palm and dorsum shows it to be neutral for skin tens on contracture is suitable for one large Z-plasty the contracture of less severe degree involving several joints requires multiple smaller Z plasties to correspond with the flexion crease of each joint A continuous multiple Z plastj can often be used most effectively (F'g 7 > 6 ) , The contracted junction of a graft and the surrounding shin can be lengthened w ith Z-plasties and these again should be placed to correspond with the flexure lines H eb deepening In minor degrees of sj ndactylj or post bum « ebbing the Z plastj can be applied to the problem of deepening the w eb (Fig 7, 7) If the web is looked on as a line of contracture HAND SURGERY a Z-plasty can be earned out with a dorsal and a palmar flap Lengthening the web in this way has the effect of deepening it Incidentally such a Z gives excellent exposure of the deep 20S FUNDAMFSTAL TECIIMQUFs OF PLASTIC Si RGER\ skin of the proximal phalangeal segment gnes good exposure while at the same time correcting the«hin contracture so often associated Fic 7 7 The use of a Z-plastj n deepen ng the eb between the thumb anil ndcx finger to increase the grasp of a thumb short as a result of trauma Use of Free Skin Grafts In a difficult situation where take of a graft is Iikclj to be hazardous as with a granulating surface or in pnmarj trauma HAND SURGERV 209 the overriding need is for successful take and the split skin graft is therefore the graft of choice regardless of site Even in the palm of hand and finger where secondary contracture is inevitable it must still be used to be replaced if necessary by a whole skin graft at a later date when conditions for take are better It is in the uncrushed injury that grafts take most easily In the crush injury grafts take much less well probably due to an element of devitalisation insufficient to jeopardise the viability of the finger but of a degree to affect adversely the vascularisation of the graft Recognition of this fact suggests the desirability of more radical debridement of the recipient site m preparation for the graft in crushing injuries In elective surgery and the secondary repair of hand injuries the split skin graft preferably thick can be used on the dorsum On the palm between the fingers and in the webs where secondary contracture would so often destroy the whole point of the procedure a whole skin graft must be used Although the size of a graft depends primarily on the dimensions of the defect there are occasions where it becomes desirable to carrv the graft beyond the original defect even though this may mean excising normal skin The factors which determine such a procedure have been discussed in relation to the placing of scars m the hand The method of applying and suturing the graft is similar to that described for general use When applying the tie over flavine wool and the subsequent pressure dressing care should be taken to avoid undue pressure on the graft It is the graft on dorsum of fingers and hand which is specially liable to be adversely affected by too much pressure and the promi nences caused by the heads of the metacarpals and proximal phalanges are the most vulnerable areas Over these areas too graft failure is most serious for exposure of tendon and joint capsule is the inevitable result The prominences are increased by marked flexion of the fingers and so the hand should be im mobilised if anything on the extended side of the position of function The application of the dressing will be discussed under the heading of post operativ e care 0 HAND SURGrm 21 1 r>c 7,8 Defect of the dorsum of the hand resulting from an electrical burn with loss of extensor tendon The transposed Rap used to pro tide cover perm tied sub sequent tendon repair h\ extensor indicts transplant Ptc 7,9 Severe palmar contracture show ng initial inset of the ped cle into a neutral unscarred area in preparation for subsequent exc sion of scarring release of contracture and insett ngof pedicle in a single procedure 210 rUNbAMENfAL TECHNIQUES OF PLASTIC SURCERl Use of Flaps Different sources of skin van m the extent to which thev reproduce the characteristics of the skin of the defect m sensation, texture, appearance, etc Local skin is best, followed by forearm skin, with trunk skin a poor third, but this aspect is onlj one factor to be considered in an indiv idual case and the appropriate tjpe of flap, its source, etc , tends to be gov erned more by the size of the defect and its site In preparing the recipient site for a flap of am kind the margin should always be excised to health* tissue and this applies with Special force to a granulating area, for onlj with radical excision can the flap be soundl) sutured to good surgical material It is advisable on occasion to bring a flap bevond the obvious defect for the reasons mentioned in the placing of scars in the hand (page 204) Difficulties will be avoided if it is remembered in planning that the arm is at its most comfortable in the mid prone position The more supination called for b\ the flap the more difficult is the position to maintain voluntarily and as fixation cannot be other than by elastoplast the most comfortable position should be chosen The elimination of raw surface both in the hind itself and on the flap is desirable at all stages It is seldom if ever possible to raise a reception flap in the hand and the split skin graft covering the donor site of the flap must be extended to line the bridge segment when a direct flap is used The tube pedicle though it takes added time for tubing, does have the great advantage of completely eliminating raw surface quite apart from the added latitude of movement which its pedicle kngth permits while it is attached to the hand When a flap is being transferred as a preliminary to a recon- structive procedure, e g of tendon, it is usually advisable to have the transfer complete and the area quite healed before the deep structure is treated so that the poasibibtv of sepsis can be quite eliminated Defects proximal to the webs If a defect of the dorsum is small a rotation or transposed flap is sometimes a possible method of repair (Fig 7, 8) Free skin grafting of the secondarv defect is almost umversalli needed as H\ND SUROER\ 211 Fic 7 S Defect of the dorsum of the hand result ng from an electr cal burn h loss of extensor tendon The transposed flap used to pro de cover perm tted sub sequent tendon repa r by extensor nd c s transplant Tic 7 9 Sc -ere palmar contracture sho ng n t al inset of the ped de into a neutral unscarred area m preparat on for subsequent excis on of scarr ng release of contracture and nsett ng of ped de n a s ngle p ocedure 212 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCtm the amount of** slack " a\ailable on the dorsum is deceptnelv small In practice, cases suitable for a rotation flap seldom occur and the distant flap has a much wider usefulness Rotation flaps of the palm cannot be recommended from an) point of \ lew because of the characteristics of the skin itself and its intimate attachment to the palmar aponeurosis V The use of a trunk flap to repair a defect of pulp of thumb The points brought out m discussing the use of direct flaps from chest and abdomen for defects of forearm appl) to the hand also When a tube pedicle is used, particularl) for palmar defects, it is worth while considering an inset of the pedicle into a neutral unscarred zone (Fig 7, 9) so that excision of the scarring can be followed b\ skin co\ er of the entire area m a single procedure For the defect of intermediate size near the radial or ulnar side a direct flap from the opposite forearm may be used The cross arm flap is discussed in more detail for corer of finger 212 FUNDAMEKTAt TECHNIQUES OF PLASTIC SURGERY the amount of “ slack *’a\ailable on the dorsum is deceptively small In practice, cases suitable for a rotation flap seldom occur and the distant flap has a much wider usefulness Rotation flaps of the palm cannot be recommended from any point of % lew because of the characteristics of the shm itself and its intimate attachment to the palmar aponeurosis The use of a trunk flap to repair a defect of pulp of thumb The points brought out in discussing the use of direct flaps from chest and abdomen for defects of forearm applv to the hand also "When a tube pedicle is used, particularly for palmar defects, it is worth while considering an inset of the pedicle into a neutral unscarred zone (Fig 7, 9) so that excision of the scarring can be followed by skin co\ er of the entire area in a single procedure For the defect of intermediate size near the radial or ulnar side a direct flap from the opposite forearm may be used The cross arm flap is discussed in more detail for co\ er of finger Fic 7, it The conversion of an injury of several fingers into a single defect prior to (lip cover The injury (A) of index, middle and ring fingers caused by friction burning converted into a single defect (B) and covered by a direct abdominal flap (C) The flap divided (D) and the fingers separated (E) The final result (F) after thinning of Che segment of the flap on each finger 214 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCER1 I3efects distal to the webs The defect maj be of one finger onlj or of several fingers and according to circumstances a distant flap from trunk or opposite forearm, or a local flap from adjoining finger or thenar eminence rfiaj be used for cov er Distant flaps When a single finger is invohed the decision of whether or not a trunk flap can be used depends largelj on the site of the defect for the other fingers maj make it impossible to bring the defect and potential flap together readil) It is more for pulp replacement that a trunk flap is used (Tig 7, 10) though ev en here skin more near in character to normal pulp skin is preferable where a suitable flap can be constructed Defects of several fingers maj be dealt with simultaneoush b) suturing the adjacent margin of each defect so that one large defect is made which can then be covered with a single flap (fig 7, 11) \\ hen the fingers come subsequently tobe separated it will be found that the amount of skm needed for each finger is greater than one might ha\e expected The thickness of the flap makes this unavoidable e\en allowing for as much thinning as possible and the flap should be of corresponding!) generous dimensions The extensive defect usuall) requires a trunk flap (Fig 4, 17) because the alternate e sources are too limited in area For the defect of intermediate size a cross arm flap from the other forearm (figs 7, 1 and 7, 12) is a useful method of covering either the dorsal or palmar surface of a finger The position is easj to maintain and the flap can be of the direct type if the length breadth ratio permits When the ratio makes such a flap risk) the bipedicled strap flap may be used instead The flexor aspect of the forearm is the obvious donor site but as long as the flap does not encroach on the subcutaneous border of the ulna an) site which permits a comfortable position during transfer maj be used Fig 7 12 The use of a cross-arm flap in repairing an injur} of ihe thenar eminence The injury (A) involving the metacarpo phalangeal joint prepared (B) to receise the flap The flap outlined (C) and raised (D) The spl t skin graft applied to the secondary defect (E) shotting the extension of the graft (F) to line the pedicle segment of the flap (G) and the plaster of Paris fixation of the arms (H) The flap immediately before divts on (I) and divided and inset (J) The final result (K) 214 fundamental techniques of plastic surgfrt Defects distal to the webs The defect maj be of one finger only or of several fingers and according to circumstances a distant flap from trunk or opposite forearm, or a local flap from adjoining finger or thenar eminence may be used for cov er Distant flaps When a single finger is mv oh ed the decision of whether or not a trunk flap can be used depends large!) on the site of the defect for the other fingers may make it impossible to bring the defect and potential flap together rendilj It is more for pulp replacement that a trunk flap is used (Fig 7, 10) though even here skin more near in character to normal pulp skin is preferable v\ here a suitable flap can be constructed Defects of several fingers mav be dealt with simultaneously bj suturing the adjacent margin of each defect so that one large defect is made which can then be covered with a single flap (Fig 7 ,ii) W hen the fingers come subsequent!) to be separated it wilt be found that the amount of skm needed for each finger is greater than one might have expected The thickness of the flap makes this unavoidable even allowing for as much thinning as possible and the flap should be of corresponding!) generous dimensions The extensive defect usualt) requires a trunk flap (Fig 4, 17) because the alternative sources are too limited in area For the defect of intermediate size a cross arm flap from the other forearm (Figs 7, 1 and 7, \z) is a useful method of covering either the dorsal or palmar surface of a finger The position is easy to maintain and the flap can be of the direct t)pe if the length- breadth ratio permits When the ratio makes such a flap nskv the bipedicled strap flap tna> be used instead The flexor aspect of the forearm is the obvious donor site but as long as the flap does not encroach on the subcutaneous border of the ulna any site which permits a comfortable position during transfer mav be used Fig 7 . ** The use of a cross arm flap in repamngan injury of the thenar eminence The injury (A) involving the metacarpo phalangeal joint prepared (B) to receive the Hap The flap outlined (C) and raised (D) The split skin graft applied to the secondary defect (F) showing the extension of the graft (F) to line the pedicle segment of the flap (G) and the plaster of Paris fixation of the arms (H) The flap immediately before division ( 1 ) and divided and inset (J) The final result (K) 216 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY Local flaps These can be taken from an adjoining finger or the thenar eminence as cross finger and thenar flaps Cross finger flap (Figs 7, 13, 7, 14 and 7, 15) This type of flap can provide coter for a defect of the palmar aspect of a finger, Fic 7, 13 A cross finger flap used to resurface the pulp of thun'b The injur> (A) prepared to recede the flap (B) The flap raised before (C) and after (D) incising Cleland s ligaments and sutured in position (E) The flap (I) and the split skin graft applied to the secondary defect (G) shortI> before dmding the pedicle The final result (II) particularly in the middle and proximal phalangeal segments, since it can only be taken from the dorsum and side of the donoT finger It is most useful for defects of between one and two phalangeal segments Smaller defects increase the length breadth ratio while the technical difficulties increase if the area to be cotered is much longer than this The flap finds one of its most effectn e uses in co\ enng the thumb Whether pulp or tip is HAND SURGERY Fic 7, 14 A cross f nger flap used to preserve length in a traumatic partial amputa tion of thumb This type of flap can only be used readily when the thumb has already been shortened and with its twist of pedicle it must be planned with great care 2lS FUNDAMENTAL TECHNIQUES OF PLASTIC SURCERI being covered the thumb can readilj be positioned so that the flap from index finger is not under tension and its pedicle is not subject to undue torsion The distally based cross finger flip used to cover a guillotined index finger tip The injury (A) and the flap (B) sutured in position with a split skin graft appl ed to the secondary defect (C) The dress ng 1 4 days later (D) and the end result (E) This is a common injury and when the preservation of length of the finger is considered desirable the flap is a most useful one The distal basing of the flap does not jeopardise its viability The flap must be raised with care to avoid bating the digital nene and artcrj or extensor expansion and the secontlan defect on the donor finger is covered tilth a thick, split skin graft The reach of a cross finger flap can be increased if a point is made of dividing Cleland s skin ligaments These ligaments as they appear in this surgical procedure form a fibrous septum just JI\ND SURGERY 219 dorsal to the neuro v ascular bundle and bind the skin of the neutral line to the side of each phalanx Their division frees the shm of the neutral line and adds grcatlv to the mobility and reach of the flap itself A modification of the cross finger flap as described can be used to resurface the tip of a finger when the relative lengths of donor and recipient fingers are suitable and the mobilitv of the recipient finger adequate (Pig 7, 16) It is important to av oid encroaching on the nail bed of the donor finger w hen the flap is constructed The index, finger is the one which most often sustains an injury requiring this particular flap Thenar flap It is well recognised that flexion of an\ of the four fingers brings its pulp to llmost the same point of the thenar eminence and this f3ct can be used in resurfacing pulp or finger tip defects by a flap raised on the thenar eminence (rig 7, 1-) The flap has its main use m the hand with relatively thin palmar skin the calloused hand of the manual worker is quite unsuitcd for the procedure If the patient is unable to bring the finger requiring cover to lie against the thenar eminence easily and with a complete absence of discomfort the flap should never be ton templated This excludes it as a rule from being considered for the index and little fingers The dimensions and site of the defect determine how the flap should be based Tor a defect of tilt greater part of the pulp a side based flap offers the best length breadth ratio I J esecondirv defect is covered with a thick split skin graft Planning with jaconet so effective elsewhere does not work well with the thenar flap lhe blood stuncd imprint of the flexed finger is more useful m giving the appropriate site and shape of the fl ip to be raised This flap has its enthusiastic advocates but it is not without unsatisfactory ispects A tender scar in the thenar area is a serious disability and occasionally occurs and the finger immobi hsed tn flexion for the period necessary is sometimes difficult to mobilise In addition it is difficult to avoid maceration of skm in the operative sue from the dost proximitv of flap and palm for the area sweats virtuallv continuously at ordimry tempera tures It is a flap to use spmnglv and only when the indications are clear HVSD SURGrRV 221 posr-omun\T care Following a surgical procedure in the hand a period of immobi- lisation is generallj desirable and this is prouded bj the dressing on occasion reinforced bj plaster of Paris At the same time measures should be taken to prevent oedema developing in the hand Dressing of the hand If a graft has been applied it is usually wise, regardless of the site of the graft, to immobilise the entire hand in the position of function Following the tie over dressing careful padding of the whole hand, in the webs and between the fingers must be carried out before appl} ing the circumferential crcpc bandages 1 he aim in padding u to com ert the hind into a cylinder so tint pressure is even!) distributed Failure to pad the palm and dorsum ade quatelj causes undue pressure on the radial and ulnar suits and sores mtj result Onlj the finger tips are left visible to indicate the vascular state of the hand When no graft has been used absolute immobilisation ma> be less necessar} and the regime can be suitably relaxed Prevention of oedema Oedema fluid provides the raw material of stiff fingers and is prevented b\ elevation When a graft has been applied or there has been extensive soft tissue dissection the hand should be elevated, preferablv in plaster of Pans A well padded cast should encncle the arm as fjr proxunalh as the upper humerus (Fig 7, 18) so that the weight is taken on the upper arm and not on the wrist and hand In more minor procedures elevation on 1 pillow or in a sling without plaster of Paris is adequate Do 7, 17 The use of a thenar flap to repair a defect (A) of pulp of f nger The defect is dwplaied full j (B)bj excising marginal tarring and ihc flap is outt ned with Bonne) s Blue (C) on the thenar eminence elevated (D) and sutured 10 the defect (b) A »pJ t skin graft is sutured to the secondary defect (O ond a tie-over dressing (G) is applied The ltip « shot* n just before (H)and after (I) division of the pedideand insetting of the flip The final result (J) HANt> SURGFR\ 221 rOST-OPFRAHVE CAKE Following a surgical procedure in the hand a period of immobi- lisation is generally desirable and this is pro\ ided by the dressing on occasion reinforced by plaster of Paris At the same ttme measures should be taken to prev ent oedema de\ eloping in the hand Dressing of the hand If a graft has been applied it is usually w i$e, regardless of the site of the graft, to immobilise the entire hand in the position of function Following the tie over dressing careful paddtng of the whole hand in the webs and between the fingers, must be carried out before applying the circumferential crepe bandages The aim in padding is to com ert the hand into a cy Imdcr so that pressure is evenly distributed Failure to pad the palm and dorsum ade- quately causes undue pressure on the radial and ulnar sides and sores may result Only the finger Ups are left visible to indicate the vascular state of the hand When no graft has been used absolute immobilisation may be less necessary and the regime can be suitably relaxed Prevention of oedema Oedema fluid provides the raw material of stiff fingers and is prevented by elevation When a graft has been applied or there has been extensive soft tissue dissection the hand should be elevated preferably m plaster of Paris A well padded cast should encircle the arm as far proximallv as the upper humerus (Fig 7, 18) so that the weight is tal en on the upper arm and not on the wrist and hand In more minor procedures elevation on a pillow or in a sling without plaster of Paris is adequate Fic 7, 17 The use of a thenar flap to repair a defect (A) of pulp of finger The defect is displaced full) (11) bv excising marg nal scamng and the flap is outlined with Ilonncy s Ulue (C) on t! e thenar eminence elevated (D) and sutured to t! e defect (t) A split slun graft is sutured to the secondary defect (O and a tie-over dressing elv. left until the tenth to twelfth day. This applies c\ en to the injur) in\ obing a graft. When the function of the hand is significant!) limited by the dressings, particular!) in older patients, the first dressing should generall) be done on the seventh day and the bulk of dressings thereafter should be reduced to a minimum so that mo\emewt of the fingers can he instituted as rapidl) and iritcnsiv civ as possible _ , A similar approach applies to the dress! r CC,M procedures. HAND SURGERY 223 BIBLIOGRAPHY Hand injuries Evans E M (1949) The treatment of major injuries of the hand Brit J plast Surg 2, 150 Furlong R (1957) Injuries of the Hand London J S.A Churchill Rank B K &. Wakefield A R (i960) Surgery of Repair as applied to Hand Injuries 2nd Ed Edinburgh E &. S Livingstone Reid D A C (1956) Experience of a hand surgery service Brit J plast Surg 9, 11 Finger-tip injuries Barcla\ T L (1955) The late results of finger tip injuries Bnt J plast Surg 8, 38 FLATT A E (1955) Nail bed injuries Bnt J plast Surg 8, 34 Cross arm flaps McCash C R (1956) Cro>s arm bridge flaps in the repair of flexion contractures of the fingers Bnt J plast Surg 9, 25 Cross finger and theaar flaps Cimns R M (1957) Cross finger pedicle flap in hand surgery Ann Surg 14 5, 650 Flatt A E (1957) The thenar flap J Bone Jt Surg 39!!, 80 Tempest M N (19^4) The emergency treatment of digital injuries Bnt J plast Surg 7, 153 Neurovascular isfand flaps Littler J \V (1960) Neurovascular skin island transfer in recon structive hand surgery Transactions of the International Society of Plastic Surgeon 2nd Congress p 175 Edinburgh E &. S L» mgstone Tubiana R A Dupakc J (1961) Restoration of sensibility in the hand by neurovascular skin island transfer y Bone yt Surg 43B, 474 CHAPTER EIGHT Surgery of the Eyelids S KIN co\er of the ejelids is usually required as a result of loss from trauma or surgical excision for malignanc) EYELID INJURIES The extremel) rich blood supph of the ejelids permits sun i\al of flaps with the most tenuous of attachments It follows that the approach to the treatment of trauma in this region must be ultra conservatne wound excision should be minimal and the surgeon s chief aim should be to replace tissues in their proper anatomical site (Fig 8 i) The sexerel) damaged ejelid may present a \eritable jig saw puzzle but reassembling the various parts correctl) is not labour wasted e\en if secondan operations are required to correct shin or deep contractures the) will be cas> and successful in direct proportion to the care taken and the accurac) achiexed at the pnmar) operation When an e) ehd injur) is first seen there often appears to be actual loss of tissue but the true loss can be assessed onl) as the repair proceeds and is almost ahvaj s less than at first seemed likely In repairing these injuries there are certain he) structures which correctl) placed as a first step can act as landmarks Tear duct system When the lower lid canaliculus has been sexered it is desirable to reconstitute it where possible Failure to do so ma) result in an intractable ep pi ora and late reconstruction is not possible A careful search should be made for the cut end leading to the lacrimal sac but if it cannot be found passage of a n)lon thread or probe through the canaliculus of the intact lid and lacrimal sac w ill sometimes help m identifxmg it (rig 8, i) In the same wax if the segment in the lid cannot be seen passage of a n)Ion or silk worm gut thread through the punctum will show the cut end of the canaliculus where it emerges Passage of the thread 224 «SURGER\ OF THE EULIDS into the other orifice will allow healing in continuity This procedure is easier to describe than earn out but it is worth attempting where possible The tendenc\ to stricture e\en when the canaliculus is reconstituted is marked and despite A Repair of an injur) it thout t ssue loss a -ul ng the lo er 1 d from s med a! attachment showing an attempt to restore the cont mi t) of the canal cuius by thread ng monofilament nylon through the lacrimal punctum and into the lacr mai sac The final result sho -s the excellent appearance h ch can be ach e -ed b) accurate reconst tut on of the medial canthus B The result of fa lure to reconstruct the canthus acct ratel) follow ng an injur) s milar to A The repair of an iyur) s milar to A as part of a more exters -e fac al soft t ssue injury s sho n n F g i 10 passage of probes drainage of tears is often poor Fortunately even with complete failure to reconstitute the canaliculus the epiphora is not invariably severe Ltd margin ^ anous methods of stepping incisions or w ounds of the lid margin hav e been described but careful matching is quite adequate if the wound edge is made to evert a little bj the suture In anv case it would be quite unjustifiable to traumatise still further tissues already damaged bj the injur) The various landmarks of the lid margin — the ejelashes the 326 FUNDAMENTAL TECHNIQUES OF PLASTIC SL RGERA grej Ime, the junction of conjunct a and sbn, all can be used for matching purposes T arsal plates In each ejelid the tarsal plate is dosclj adherent to the conjunctiva and in trauma the two behave as a single structure It is advisable where possible to avoid sutures in the conjunctiva but matching of the tarsal plates can be used to fix the margins of the associated conjunctiva which in an) case heals ver) rapidl) Conjunctna At the completion of an) repair it is essential to hate a situation which will permit cover of the cornea with lid conjunctiva dunng sleep and a tarsorrhaphv is sometimes Fie 8,2 The interweaving suture (after Stallard) needed to ensure this Sutures of the conjunctna cause irritation of the cornea where the two come into contact, thev are difficult to remove, and arc best avoided \Wien the) cannot be avoided, a continuous “interweaving” suture (r ig 8, 2 ) brought out to the shin surface at each end is useful It draw s the conjunctn a together vv ell, there is no interlocking and it is readil) removed The smooth surface of nvlon thread can be turned to advantage m this situation for east removal Palpebral ligaments The tarsal plates which give to the ejelids such ngiditv as the) possess have their mam attach- ment to the bon) orbit via the medial and lateral palpebral ligaments and if either of these ligaments has been div ided traumaticall), it must be reconstituted as far as possible bv suture The medial ligament is the more powerful structure and damage to it is correspond mglv serious, for the whole medial canthal region drifts forward and lateralis giving the appearance of a unilateral hvpertelonsm It is stated th3t this appearance onlv results if the posterior attachment of the ligament behind the lacrimal sac is divided but, at least as far as trauma is concerned, this is largclv an academic point Unfortunatel) it is extremel) difficult to reconstitute the SURGERY OF THE EYELIDS 227 ligamentous attachment and though the immediate post operative position of the lids following wiring, etc , of the ligament to its bony insertion mav be good, the sy stem tend" to drift bach to its pre operative position USE OF GRAFTS Ideally a graft replacing eyelid shin must fulfil certain require ments which arise from the functional anatomy of the region Firstly, the lach of rigidity of the normal tarsal plate mahes the eyelids prone to cicatncal ectropion or entropion if there is the slightest contracture on the surface of the lid or in the socket Secondly, evehd shin is extremely thin and in the upper hd particular!} is onl} loosely attached deepl} because of the need for rapid movement of the C}ehds The low er eyelid is less mobile than the upper and the part of the upper lid corresponding to the tarsal plate is in its turn less mobile than that above the upper palpebral furrow Skin grafted to an e}elid should be as thin as normal e}ehd skin, especially when the most mobile skin is being replaced, and in addition should be free of a tendenc} to secondary contraction Unfortunately the best shin, which comes from the upper eyelid is extremely limited m quantity at best and may not be available at all and so a compromise has generally to be reached (Fig 8, 3) For less mobile areas the canthi the lower e>ehd and the tarsal segment of the upper eyelid post auricular whole thickness skin provides the best substitute, gives an excellent colour and texture match, and its extreme vascularity makes take easy In the upper part of the upper eyelid, the need for extreme mobility is paramount and a thm split skm graft from the anterior or medial aspect of the upper arm is usually used With the knowledge that such a graft will undergo gross secondary con traction, the defect is stretched to its maximum and indeed over corrected so that the largest possible area of skin can be inserted in expectation, of secondary contraction Despite this, the graft area nearly always does end up a little shorter than normal in the v erttcal dimension Preparation for grafting Following surgical excision and immediately following trauma, the actual skm defect is already visible, but in the late repair of Fig. 8, 3 The free skin graft* used in the various ejclid sites, A. Post-burn ectropion of bothejehds. Upper lid skin replaced by split - skin from upper aim and loner ejejid skin replaced by post-auricular whole thickness skin. B. Rodent ulcer of medial canthus involving the caruncle and adjoining ejelids replaced after excision by post -auricular whole thickness skin. C. Rodent ulcer of skin overljing the upper tarsal plate replaced after excision by post-auricular whole thickness skin. SURGERY Or THE £\ ELIDS trauma, the defect usually shows as ectropion and must be demonstrated afresh as a raw surface so that it may be corrected If the shin loss has been localised the scarred area is well delineated and can be dealt with excising the scarring so that the eyelid may lie against the eyeball When the resulting defect is in the upper part of the upper ejelid and a split shin graft is felt to be appropriate additional transverse incisions medially and laterally beyond the area of actual scarring are ad\isable so that the original defect may be o\er corrected to allow for the The method of correct ng diffuse ectropion of the lower eyelid and the insertion of a post auricular whole skin graft subsequent contraction of the graft When a post auricular whole shin graft is felt to be adequate such ot er correction is less necessary The ectropion which results from a full thickness shin Joss burn is more diffuse and to demonstrate the extent of the skin lost a different method is used (Fig 8, 4) With shm hooks on the lid margin to put the skin on the stretch an incision is made approxi mately 2 mm on the skin side of the eyelashes and parallel to them If the contracture has distorted the canthus and the lateral is the one liable to be pulled off the eyeball the incision should be prolonged bey ond it so that any skin loss in a transverse as well as a vertical direction may be corrected An incision confined to the actual hd margin in such circumstances tends to leave slight residual ectropion towards the canthus Maintaining tension on the hooks the knife blade is worked away from the lid margin parallel to and just deep to the skin surface separ iting skin from underlying muscle As dissection pro ceeds the ectropion becomes increasingly corrected and the skin 230 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCERY defect displaced The lidshould be freed until it lies spontaneously against the eyeball along its entire length and can readily be stretched well over its fellow eyelid E\ en after extensive freeing the bd may still tend to lie off the globe and this is generally due to residual areas of scarring m the orbicularis muscle These patches of scarring are felt rather than seen and must be excised completely with fine scissors. Even what would seem to be a most radical excision of much of the muscle leaves no disability; only if the levator palpebrae superioris is divided will there be ptosis. The undermining of the lid margin for a millimetre or so to give a good suture line completes the preparation for the graft. The extent of the defect of eyelid made surgically is usually governed by pathological considerations but on occasion additional normal shin has to be excised to give a better line to the junction of graft and surrounding shin. An example of such a situation is the extending of excision a little beyond the canthus, if the junction of graft and surrounding eyelid is approaching it. Also, just as straight vertical scars from the lid margin are best avoided lest contraction of the scar cause ectropion, a vertical junction of graft and eyelid is undesirable When it is unavoidable, the defect should be fully displayed so that the maximum of shin can be inserted to allow for any subsequent contraction. The application of the graft The method of apply ing a whole shin graft differs only in minor details from elsevv here. It is safer to suture away from the ej ebatl though this may mean suturing from a less to a more mobile structure and the sutures along the ejelid margin should not be tied too tightly as they cut through readily. In the same way the sutures tied over the flavine wool bolus should not put too much strain on the sutures. Undue pressure is not necessary'; these grafts take v ery readilj' if haematoma is avoided. With a split-shin graft the same technique of appljing the graft can be used, but the object is to stretch the defect to allow as much skm as possible to be inserted and the flavine wool technique does not lend itself readily to this The stretching and over-correction is better achieved using the STENT mould technique (Fig. 8, 5) STENT is a dental moulding compound which softens to malleability in hot water and hardens to rigidity m cold and it can be used to take an accurate impression of the F Fic 8, 5 The STENT technique of grafting an eyel d The ectrop on of upper lid (A) is corrected (B) and a STENT mould (C) of the defect is made The spf t sit in graft w ltft raw surface outwards is draped round the moufd (D and E) and inserted into the defect (F) the mould which is going to be inserted into the defect The mould with shin is then laid into the raw area Sutures through the shin edges of the defect are tied over the mould half burying it so that the maximum contact of raw surface and graft is obtained 232 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY and in this \vaj the maximum of graft is inserted There is no question of suturing the graft edge to edge to the defect An) obvious excess is tnmmed off when the tie-over sutures are tied, the graft takes to the margin of the defect and at the first dressing, usuaih 7 dav slater, the skin be)ond the edge of the defect, dry and paper) b) now is easiU trimmed off Before the dressing is applied it is a!wa)S advisable with either technique to ‘ vaseline M the evelashes avva) from the e)eball To distnbute pressure the dressing is built up around the flavine wool or mould and a crepe bandage is applied Unless it is felt that mov ement of theeveball underneath will irritate the cornea, and with a simple graft of skin alone this is seldom true, there is no need to cover the other e)e Some surgeons carr) out a temporan tarsorrhaph) stmuhaneouslv but this is quite unnecessarv Post-operative care Apart from failure of the graft to take, and this fortunatel) is extreme!* rare, the onh complication to be feared is corneal ulceration and this is usuallv the result of trichiasis which has not been dealt with immediatel) The patient must be specificall) asked if he feels anything in his e>e and a positive replv is an absolute indication to take down the dressing and inspect the eye for the offending e)elash This applies regardless of the conse- quences to the graft though fortunatel) take and vaSCulansation are so rapid that the graft is seldom jeopardised b) a careful inspection Patients occasionallv complain of some pain but give a negative repl) to the direct question about the feeling of a foreign bod) In such cases there is seldom need to take down the dressing, gentle easing of the bandage is usuall) adequate The graft is dressed on the seventh dav and a further dressing is often wise for a further week, or so, not so much to provide pressure as immobihtv The lids are so mobile that even after a 100 per cent take some loss ma) occur if unlimited lid movements are allowed too soon USE OF FLAPS When a full thickness defect of e)elid has to be repaired a flap max be necessar) for skin cover, but for skm replacement alone it is less often used following excision of a malignant lesion, SURGERY OF THE F\ ELIOS 233 it is not eas) to justifj its use if skin alone is imohed though on grounds other than pathological it will give an entirelj adequate result A flap can be most useful, however, in the awkwardly Fig 8, 6 The use of 0 single pedicled flap from upper eselid in covering the defect left after excising a pigmented papilloma near the lid margin A The lesion B The flap outlined C The flap transferred D The final result after excision of the bridge segment placed simple lesion whose excision leaves a defect Papillomata near the lid margin for example often require more than minimal clearance to prevent recurrence and leave a raw area which cannot readilj be closed bj direct suture Lower lid defects are particularly amenable to flap repairs and the results are functional!) excellent because the bulk of e>ehd Fic 8,7 The use of a temporal bridge pedicle to provide coser after excision of the recurrence of a rodent ulcer in the centre of s previously applied post auricular whole skin graft A The lesion B The excision leaving conjunctival lining and the temporal flap outlined C D The flap transferred with secondary defect split skin grafted E The final result after return of bridge segment of flap SURGERY OF THE EYELIDS 235 movement is bj the upper ejehd and a localised deficiencj of orbicularis has little effect on function hen the defect does not extend bejond the ejehd on to the cheek a flap of skin from the upper ejehd above the upper palpebral furrow can be used (Fig 8, 6) The vasculantv of the region permits a flap of quite outrageous length breadth ratio to be used and depending on the length site etc of the defect the flap maj be used with a single pedicle at either canthus or swung down as a bipedicled strap flap 11 hen the defect does not extend to the canthus the flap maj be used as a bridge pedicle and the unused segment which \erj rapidlj tubes itself can either be returned to its donor site or excised whichever is more convenient These repairs are most often needed in the older age groups and the added laxitj of the upper ejehd which *0 often goes with age makes closure of the secondary defect easier If the secondarj defect can be closed bj direct suture without producing ectropion this is the course to pursue If not a split skin graft must be used When the defect extends bejond the confines of the lower lid a broader flap is needed and the forehead is the usual source for the medial canthal region a glabellar tjpe of flap can be used (Fig 5, 17) for the lateral canthus and the remainder of the lower lid a temporal flap is suitable (Fig 8 7) There is a moderate amount of skin available m the upper ejehd for closure bj direct suture without producing ectropion and flaps are less often needed BIBLIOGRAPHY Schofield A L (1954) A rev ew of bums of the eyel ds and the r treatment Bnt J plast Surg 7, 67 Stallaiid H B (1958) Eye Surgery 3rd Ed Bristol J W right &. Sons CHAPTER NINE MaxiUo -facial Injuries ALTHOUGH the treatment of fractures of the maxillo facial ZA complex usualh invokes dental techniques of which surgeons need know only the principles such patients are still the concern of the surgeon for it is he who recognises the injury and undertakes the early care of the patient Furthermore some of the less severe fractures can readily be treated b) straightforward surgical methods EARLY CARE The great majority of patients with maxillo facial injuries require no special care of the fracture other than adequate and repeated cleansing of the mouth Mandibular fractures apart, maxillo facial fractures do not tend to be sufficiently mobile to make pain from this source a prob- lem in earl} management Even with mandibular fractures dis- comfort due to mobility of the fracture is seldom marked and a surprisingly small proportion re- quire the support of a barrel bandage (Fig 9, 1) In the small group who require special care the difficulties are either respiratory or caused by haemorrhage. Respiratory difficulty. This can vary greatly m seventy and is due «her to swelling of the tongue from haematoma spreading from a mandibular fracture or to inability to control the tongue in those bilateral mandibular fractures where the anterior fragment 236 MAXILLO F\CIAL INJURIES 237 which carries most of the muscular attachments of the tongue is mobile Haemorrhage Bleeding particular!) in maxillary fractures ma) occasionally be brisk but is seldom prolonged It stops spon taneousl) if a free air way is provided Unfortunately unless steps are taken to prevent blood from trickling back into the pharynx the respiratory difficulties are likely to be intensified with resulting restlessness which in turn will increase the bleeding The positioning of the patient to prevent this is described below Nurs ng the max Ho fac al njury prone with the head to one s de The measures required in any particular patient depend on the severity of the respiratory embarrassment but adequate suction should always be at at (able Such patients breathe more easily if they can be sat up but when this is not possible it is most important not to leave them 1 ) mg flat on their backs The correct position is prone with head turned to the side (Fig 9, 2) A suture through the tongue to hold it forward may be necessary It must be stressed however that any tendency to serious respiratory difficulty is an indication for immediate tracheotomy and this should be done early for respirator) embarrassment tends to increase rapidl) Severe and uncontrollable bleeding may call for ligation of the external carotid arter) ASSOCIATED INJURIES Maxiflo facial fractures do occur as isolated injuries but with car and motor ejele accidents as a common cause other injuries are verj liable to be sustained simultaneously The injuries most likely to affect the management of the maxillo facial component 238 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCEIU are soft tissue facial injuries, cranial injuries, chest injuries and eye injuries. J ' Injuries other than these interfere less significant with the treatment of the maxillo facial fracture and the only difficult} which is apt to arise, other than that of co-operating with the orthopaedic surgeon to reduce the number of anaesthetics bj working on face and limb in a single operating session, is the administrative one of deciding whether to treat the patient in orthopaedic or maxillo-facial unit Ideally he should be treated m an accident centre with the appropriate specialties comerging on him but this ideal is still found only in isolated places and the situation has usually to be resolved by considering tbe relatne seventy of the several injuries Soft tissue facial injuries The soft tissue injury should be treated on its own merits with the minimum of delay along the lines discussed in Chapter One Its management is seldom significantly influenced b\ the simul- taneous presence of a maxillo facial fracture E\en when the fracture is compound the wound can be closed with safet) Fixation of the fracture, as will be explained later, is usually tia the teeth or b) the alveolus itself if the patient is edentulous and so the soft tissue closure very rarely interferes with the definime fracture treatment Exceptionally, when an interosseous wire (see page 262) is used to fix the fracture in addition to the dental fixation it ma> be possible to use the soft tissue laceration for the surgical approach but such an occurrence is extremely rare Cranial injuries Brain damage with or without a skull fracture is quite common in association with a manllo-facial injury. The unconsciousness which results affects the management of the patient in one of two I If the patient is deeply unconscious and on this score alone would be consrdered'for tracheotomt the presence of a fracture of mariUa or mandible with the added breathing difficulties which it causes adds great weight to the argument m fat our of tneheotomj Eten where the let el of un- consciousness would not bj itself merit tneheotomj there MAXILLO FACIAL INJURIES 239 should be no hesjtatjon in carrying one out if the fracture is adding significant!) to the difficulties of management and there are virtues in carding out the procedure prop hy tactically rather than waiting until it becomes a therapeutic necessit) Though a tracheotomy is apt to have an unnecessary morbidity in many cases because of unsatisfactory care and poor facilities for humidifying the inspired air it can nevertheless be life saving in this situation 2 If a tracheotomy is not considered necessary then the fitting of metal cap splints (see page 258) and ev en the taking of dental impressions should be postponed until the patient is sufficiently conscious to be co operative A further sign of cranial injury which may complicate the management of a maxillo facial fracture is cerebro spinal rhinorrhoea Cerebro spinal rhinorrhoea I eakage of cerebro spinal fluid from the nose is evidence of a fracture of the cribriform plate with a dural tear It is an easy clinical diagnosis— a water clear fluid dropping from the nose sometimes increased in volume by dropping the head forward or straining usually developing within 48 hours of the injury though it may suddenly appear some days or even weeks after the injury The natural history of the condition if left untreated is in some dispute Some leaks stop spontaneously when the fracture is fixed and there is no further trouble some appear to stop but meningitis develops after a variable and somet mes quite long period of freedom from all symptoms some continue to leak fluid w ith the ev entual dev elopment of meningitis ev en after reduction and fixation of the fracture of maxilla Tt is the proportion of patients falling into each category which is disputed and this makes treatment difficult to discuss In any case it is probably wise to enlist the help of the neurosurgeon as soon as the condition is diagnosed and all such patients should be given adequate antibiotic cover It is well recognised that movement of the fractured maxilla causes considerable movement of the cribriform plate and the fractured neighbouring bony fragments The fracture shoutd therefore be reduced and fixed at the earliest possible moment so that the dural tear may get the best chance to heal 240 FUNDAMENTAL TECHNIQUES OF PLASTIC SLRGERl If the leak is small in volume and becomes less fair!) raptdlv it can safelj be left to stop spontaneously The chances of late meningitis are probablj remote The leak which is large in volume or which persists should be surgicallj closed At a joint procedure w ith the neurosurgeon the dural tear is repaired with a fascia! graft and the maxilla is reduced and fixed Chest injuries The presence of fractured ribs along with a maxiffo facial fracture does not usual!} complicate their mutual management The maxillo facial injur) is onl) hkel) to make treatment of the chest injury more difficult by adding to the respirator) embarrass ment if there is a flail segment with paradoxical respiration In such a situation a tracheotomy will help to sol\e both problems Oddi) enough the combination of se\ erely crushed chest and maxillo facial fracture is not a particular!) common one Eye injuries The surprising thing about e)e injuries in this context is their rarity When one does occur the damage tends to be irreparable either with disruption of the contents of the ejebalJ or set ere damage to the optic nerve When damage is suspected the opinion of an ophthalmic surgeon should be sought without delaj, not so much from a therapeutic point of view for there is seldom much to be done to sa\ e sight if this has already been lost but be cause of the possibility of s)mpathetic ophthalmia if the meal tract has been damaged The proptosis which results from bruising or actual haemorrhage into the orbital fat subsides spontaneous!) as does subconjunctival haemorrhage when it occurs Eyeball and optic nerve apart, the most frequent injury is a fracture of the orbital floor through which orbital fat may herniate into the antrum This injur) occurs usuall) as part of a fracture of the malar complex and will be discussed along with that injur) PATTERNS OF INJURE The maxillo facial bon) complexes are the mandible, max- illa, malar, and nose, the last three constituting the middle third of face (Fig 9, 3) These complexes roughlv correspond to their MAKILLO FACIAL INJURIES 24I anatomical counterparts and each has its own distinctive injurj patterns While a pattern maj occur alone se\eral patterns of fracture may exist together either in a single bonj complex or in more than one at the same time For example a fractured maxilla may occur atone or along with fractures of one or both malars The maxillo fac al bon> complexes — maxilla nose malars mand ble The stippled segment nd cates the m ddle th rd of face and/or nose In either case it is looselj described as a middle third fracture In fractures of mandible and maxilla it is not uncommon for teeth to be loosened quite apart from those in the line of the mam fracture and these are described as being alveolar fractures because they are due to localised fractures of the aheolar plates of maxilla or mandible in relation to the loosened teeth Q 242 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY Malar There are three main types of fracture (Fig 9 4) Simple fracture The fractured bone consisting of the malar complex remains in a single piece which is displaced medially and Fic 9 4 The types of malar fracture backwards often tilted either mediallj or laterally and usuallj impacted The line of fracture runs from the infra orbital foramen downwards and laterally over the anterior wall of the MAXILLO FACIAL INJURIES 243 antrum compressing the infra orbital nene and tearing the branches of the superior dental nerve which cross the fracture line Comminuted fracture The fracture pattern is general I) similar to that of the simple fracture but the bone is comminuted with depression of the orbital floor Impaction is less marked as a feature A B Fig 9 s Patterns of nasal fracture A Pattern from lateral v olence B Pattern from head on violence Arch fracture This consists of a localised depression of the zygomatic arch In its medially displaced position it tends to impinge on the coronoid process of the mandible Nose The nose consists not merely of the nasal bones but also of the nasal septum and both may be damaged Fractures follow two patterns due to lateral violence and head on violence (Fig 9,5) Lateral noleitce The nasal bone on the side of the injury is fractured and displaced towards the septum the septum is deviated or fractured and the nasal bone on the side away from the injury is fractured and displaced away from the septum so that the upper part of the nose as a whole is deviated Depending 244 fundamental techniques or plastic surgery on the seventy of the violence one or more of these displacements may be present and the degree of comminution is very variable Head on violence This gives rise to saddling of the nose and broadening of its upper half as a result of the depression and splaying of the fractured nasal bones Such a displacement naturally cannot take place without severelj damaging the septum The common sites of fracture of the mandible and this takes the form of gross buckling of the septum or actual septal fracture Dislocation of the lower attachment of the septal cartilage with buckling of its columellar margin usuallj gives rise to dev lation of the nose towards its tip Mandible The sites of fracture (Fig 9, 6) are condylar neck, angle, body near mental foramen, symphysis Fractures at these sites maj occur singl} or in several common combinations namely both condyles, both angles, body and opposite angle, body and opposite condyle, both sides of body (Fig 9, 7) M \XILLO-FACIAL INJURIES 245 hile the displacements may be the result of the direction of the v lolence they depend large!} on muscle pull The muscles which elev ate the mandible — masseter, medial pterygoid tem poralts — are all inserted behind the first molar, the muscles — gemoh\oid, mylohyoid digastric — which depress the mandible are all attached in front of the first molar (Fig 9, 8) Consequently the predominant displacement of a posterior fragment is upwards The common sites of b lateral mandibular fractures in order of frequency and of an anterior fragment downwards though the direction of the fracture line particularly near the angle may considerably influence the amount of displacement either permitting or preventing it (Tig 9, g) The condylar fracture is a special case The condylar head is pulled forward by the lateral pterygoid muscle and when both condyles are fractured the displacement of both heads causes the patient to gag on his molars giving an open bite’ (Fig 9, 10) Maxilla The fracture patterns depend on two factors — the site and direction of the violence and the anatomical lines of weakness of the maxilla Two patterns commonly result (Fig 9, 11) 246 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCER1 Fic 9, 8 The lines of muscle pull which influence displacement of fragments in mandibular fractures Upwards — ma«seter, temporalis medial pterygoid Dottmiards — geniohyoid, m> lohj old, digastric Direction of Fracture Direction of Fracture PREVENTS PERMITS Displacement Displacement Fic 9,9 The efTect of the direction of the fracture line on the displacement of angle fractures of mandible und-r the influence of muscle pul! MAXILLOFACIAL INJURIFS 247 The palatal segment of the complex shears off the remainder through a horizontal line corresponding in le\ el to the floor of the nose and the lower part of each antrum The palate as a whole is displaced backwards and impacted with an upward tilt so that the patient tends to gag on his molars \\ ith an "open bite" (Tig 9, iia) On occasion, when the violence has heen predominant!} unilateral, one half of the maxilla is fractured in this wa} , an added fracture line running back along the mid line of the hard palate The displacement of the fractured palatal segment then tends more to be upwards with impaction into the antrum (Hg 9, ixb) The maxillary complex ts fractured as a tchole The fracture lines run up wards and mediallj across the anterior wall of the antrum towards the mfra- JJEfSSu* “ orbital foramen on each side and across the nasal bones to meet in the mid line at the glabellar region The displacement is usuall} backwards with a tilt causing an * open bite” The degree of impaction vanes great!) from the massn el) displaced and impacted fracture to the so called "floating" fracture where impaction is minimal (Fig 9, 11c) It must be recognised that when the maxilla is displaced m this wa) it is earning the nasal complex with it The nasal complex of course maj itself be fractured independently m an) of the wa)S ahead) discussed Furthermore the maxillaty fracture line passing medial to the malar corresponds to the antral line of a malar fracture and such a fracture may be present either on one or both sides along with a maxdlar) fracture (see middle third fractures) Middle Third of Face While a fracture of the middle third of the face is a traumatic entit) it is one which is apt to be extremely confusing because it appears to be devoid of all pattern A pattern can readily be made to emerge as soon as it is appreciated that the fracture can 248 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY be broken down into the three constituents namely the fracture of maxilla the fracture of molars and the fracture of nose (Figs 9,3 and 9, 1 id ) METHODS OF DIAGNOSIS Maxillo facial fractures should be diagnosed clinically and confirmed by X ray Clinical Picture Malar The clinical picture can be related very closely to the patho logical anatomy of the fracture (Fig 9, 12) Snelhng and bruising of the overlying soft tissues is very variable Sometimes it is almost completely absent sometimes it progresses rapidly until it is severe enough to virtually close the eye and mask any underlying bony deformity Subconjunctival haemorrhage is not uncommon Alteration of bony contour is usually in the direction of flattening of the cheek prominence Comparing the inferior orbital margin with the normal on the opposite side a step in the vicinity of the infra orbital foramen can readily be felt as a rule If the overlying soft tissue swelling is severe enough however it may be very difficult to detect the step It is sometimes possible to feel the line of the fracture m the upper 1 ccal sulcus as it runs downwards and laterally over the anterior wall of the antrum Anaesthesia of the structures supplied by the nerves injured is readily detected Branches of the superior dental nerv es may be divided by the fracture making the teeth of the affected segment anaesthetic to percussion The extent of the area made anaesthetic by the damage to the infra orbital nerve is very variable but the two areas most noticeably affected are the upper hp and the alar region of the nose The sensory loss can vary from mdd paraesthesia to complete anaesthesia and m practice it is best to ask the patient to compare the affected area with a corresponding point on the normal side The actual mechanism of injury to the nerve i& not explicable on the basis of neuronotmesis avonotmesis etc for in some patients recovery begins on regaining consciousness after the MAXILLO-FACIAL INJURIES 249 anaesthetic In such cases recovery is mvariablj speed) and complete In others reco\ery is slow and incomplete and it is Fracture of Fracture of Palatal Segment Maxillary Complex Fracture of Middle Fracture half of (maxillary complex Palatal Seqment nose 6- hath maters) Fic 9 11 The common in ur> patterns of maxilla and middle third of face possible that m those the injury has seierel) damaged or even completel) divided the ner\e m the infra orbital canal j Diplopia maj occur as a transient phenomenon in the simple fracture and temporal reduction cures it When it persists 250 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCERI post -operand} ,t ,s ustiallj found that the lateral part of the orbital floor has been se\ erelj comminuted and depressed The upper \ lsual fiel d tends to be predominant!) affected The precise cause is not complete!) understood but it is thought to be due to damage to the sling mechanism of the e)eball from fibrosis and adhesions to the damaged orbital floor MAMLLO FACIAL INJURIES Nose The clinical appearance of the nose and septum is the index of diagnosis Some swelling is inevitable in patients in whom the diagnosis is being considered but a change of bridge contour or a new asymmetry are diagnostic and frequently the best judge of this is the patient himself In any case a fractured nose apart from its septal element is treated on the grounds of appearance alone and an \ ray showing a fracture is of no significance unless there is associated nasal deformity Even when the nose is not appreciably deviated or depressed the septum should be examined for haematoma This shows w ith gross bulging of the septal mucosa and it may either be unilateral or bilateral Mandible The site of fracture is usually indicated by swelling and local pain on movement or man pulation of the mandible In fractures other than those of the condylar neck there is a sublingual haema toma and if the fracture is compound into the mouth there is tearing or at least bruising of the mucosa In the tooth bearing segment of the mandible displacement may be clinically apparent with an obvious break in the line of the teeth or the patient may volunteer the information that the teeth don t close properly A condylar fracture is less obvious and the only sign may be pre auricular pain with or without swelling There is restriction of movement and dcviat on of the mandible to the damaged side on opening with gagging of the molars on the affected side on closure The great majority of patients with a fracture elsewhere in the mandible who complain of pain in the vicinity of the temporo mandibular joint are found to have a fracture of the condylar neck A bilateral condylar fracture often shows clinically with an inability of the patient to close the incisors because of the gagging of the molars giv ing an open bite If the fracture is between lingula and mental foramen and there is displacement of any degree damage to the inferior dental nerve may cause anaesthesia of the lower lip In the suspected fracture of the body a most useful method of clinical examination is bimanual ultra and extra oral palpation feeling along the inner 2J2 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY and outer plates of mandible mtra oral!} and the lower border extra onllj (Hg 9, 13) Local swelling and tenderness is suggestive of fracture and an actual step is diagnostic It is usual!) possible to make a fairl) accurate assessment clinical!) but, particular!) if displacement is minimal, X-ra) Combined mtra and «tra oral palpation in examination of the mandible for fracture examination maj be required to confirm the diagnosis and indeed when the diagnosis is suspected X ra)-s should ahva)s be taken Maxilla and middle third of face Although isolated fractures of the maxilla do occur the fracture occurs sufficient!) often with fractures of malar and nose that the clinical picture will be discussed under the heading of middle third fracture In any case it is onl) after clinical examination that the actual fracture pattern can be separated from the hotch- MWILLO FACIAL INJURIES 253 potch of middle third fractures into the component fractures of maxilla malar, and nose It is often possible to diagnose a middle third fracture on inspection alone The face as a whole but predominantly its middle third is diffusely swollen with oedema of cheeks and eyelids and looks like a football It is a \ery ty’pical appearance (Fig 9, 14) In the severely displaced fracture there is an obvious dish face deformity despite the masking effect of the oedema There is obvious failure of the teeth to occlude properly when the patient closes his mouth The upper incisors instead of occluding as they do in most patients in front of the lower incisors occlude behind or they fad to occlude at all because of the presence of an open bite This sign is naturally difficult to elicit in the edentulous W 1 en there is difficulty m deciding whether any displacement of the maxillary complex is present the patient should be asked to bite on his back teeth or on his dentures if he is edentulous If 254 fundamental techniques op plastic surgery he sajs that the teeth are closing normally then any fracture is undisplaced Mobility of the maxillary complex is tested for (rig o, ir) b\ grasping the maxilla just above the incisors between finger and thumb of one hand while the other finger and thumb feel across the bridge of the nose and hold the head steady The maxilla is rocked backwards and forwards while independent movement of maxilla is felt for Movement of the maxilla with detectable Fic 9 , 15 Method of testing for mobil ty of the maxillary complex in a suspected middle third fracture movement at the nasal bridge suggests that the entire maxillary complex is fractured while movement of the maxilla without detectable mo\ ement at the nasal bridge suggests a fracture of the palatal segment alone Each half of the palatal segment is then tested against the other for independent mobility and loose teeth are tested for to exclude alveolar fractures As alreadj stressed middle third fractures may include fractures of either or both malars and/or nose and the presence of these must be tested for independently by the methods already indicated In short, maxillary fractures per se are diagnosed on the basis of occlusion of the teeth, and fractures of additional bones are diagnosed by actively examining the patient for their presence MAMLLO FACIAL INJURIES 2^^ X-ray Diagnosis Malar The view used routinely is the 30° ocaptto-mental projection — the sinus view but minor degrees of displacement can be demonstrated more readd) by increasing the tube angle and consequent^ the obliquit) of the \ lew up to 6o° The pomts to look for are irregularities or definite fracture lines near the infra orbital foramen the z\gomatic arch and the lateral wall of the antrum and the line of the orbital floor should be compared with the normal side Blood in the antrum maj make it appear opaque Nose The fracture is treated on the basis of the clinical examina tion and \ rays are quite unnecessary Mandible Of the possible views used to demonstrate particular parts of the mandible the two most general!) useful are the postero-anterior projection and the lateral oblique projection If further views are considered necessarv the easiest wa) is to specif) the particular parts of the bone which it is desired to demonstrate Occlusal films are sometimes ver) helpful Maxilla and middle third The diagnosis should be made on clinical examination and nearl) ever) case can be diagnosed and treated without the need for an X ra) In an) case the interpreta tion of the X ra) is frequentl) more difficult than that of the clinical examination but the views most Iikel) to be helpful are the 30° occipito-mental projection and the lateral projection REDUCTION AND FIXATION METHODS The teeth are used as an indirect method of fixing jaw fractures Their firm attachment to the alveolus coupled with the fact that it is their occlusion which is of prime importance from the point of view of subsequent function makes them extremel) effective for this purpose It is usuallv onl) when teeth are absent that the ah eolus is approached more directl) for splinting purposes In reducing a fracture of mandible or maxilla the aim is to bring the teeth of the fractured fragments into a normal relationship with those of its unfractured counterpart because the fracture must of necessit) be in good position if the teeth are occluding normall) With an edentulous patient the fractured alveolus 256 fundamental techniques of plastic surcerv for similar reasons, is brought into the position it would occupy if dentures were being worn In fixing a fracture of mandible or maxilla, the fractured bone once reduced must be anchored to an immovable structure The mandible when fractured is thus anchored to the maxilla, the maxilla when fractured is anchored to the skull as well as to the mandible It should be appreciated in discussing the actual methods of Fic 9 16 The steps in eyelet wiring fixation as the) appl) to the mandible that reduction of the fracture on to the maxilla in correct occlusion as the guide to proper reduction, and fixation to the maxilla in this position as a suitable point of anchorage are m practice achieved simultaneous!) because reduction and fixation are to the same structure, namely the maxilla The separation into two distinct steps becomes more apparent with maxillary fractures where reduction is on to the mandible and fixation is to skull and mandible When teeth are present in sufficient numbers on both fragments the) are fixed in proper occlusion b) eyelet taring, arch taring, or cap splinting Eyelet wiring (Fig 9, 16) The fixing device in this method is a 5 inch length of 25 S W G stainless steel wire which has been MAXILLO FACIAL INJURIES Zrf doubled on itself and twisted tightlv two or three times leaving a small evelet at the end The double wire is passed inwards between the necks of two adjacent teeth until the twisted segment is ljing between the necks with the e\elet on the outer side The wire is then separated into its two strands one being turned forward and one back and each is passed outwards through the next interspace so that a loop is formed round the necks of the two adjoining teeth The loops Tic 9 17 The steps in arch wiring are completed bj bending the wires towards one another passing one through the ejelet and finall} twisting them tightlj together before cutting off the excess and turning in the end so that it will not catch on tongue or cheek Se\ era! sets of these wares are applied at intervals round the ah eolar arch and also at corresponding points on the opposite jaw When the fracture has been manuallj reduced and the mandible closed on to the maxilla it is held in this position b) looping further wires through the ejelets which oppose one another and twisting them tight)} together Arch wiring (Tig 9, 17) This technique is an alternative to evelet wiring and uses a narrow malleable metal bar made of flattened soft German silver wire and accurate!) moulded round the alveolar arch on its outer aspect at the level of the necks of the teeth to which it is then wired With an arch bar similarl) 258 FUT.DAMENTAL TECHMQLES OF PLASTIC SURCER1 applied to the maxilla the ttto can be fixed together tilth lures Alternant el) the arch bar on the fractured bone can be fixed to eje/et wires on the unfractured alveolus Two such bars fitted one inside and one outside the arch and wired together between the necks of the teeth prov ide much firmer fixation but to make accurateH fitting bars necessitates the tak- ing of impressions and the con- struction of a plaster of Parts model of teeth and gums on to which the bars can be moulded before the) can be applied to the patient These methods, evelet and arch wiring, can be used in an emergencj in mandibular frac- tures when other methods are not available and the\ maj suffice as the definitive fixation when the fracture has no tendencj to displacement and the dentition is full and health) though m practice the wires fixing upper and lower teeth require periodic adjustment and tightening Un fortunatel) relativelj few frac- tures fulfil these criteria and the methods consequent! 1 have Metal cap splints The splints are cemented to the teeth and in this -\>a> provide fixation for a fracture of mandible or maxilla a limited usefulness Cap splinting (Fig 9, 18) This is much the most commonI\ used method in Great Britain It is a highlv developed technique in which correcth articulated models of the teeth and gums of mandible and maxilla are made m plaster of Pans \\ orhing with these models as a basis, cast-metal cap splints are made of the entire dentition, fitting accuratelv over all the teeth except those purposel) excluded, namel) ones in the actual fracture line and those which are hopelessl) carious Properl) made and fitted these splints do no damage to gum m willo fvci\l i\;uRrc< 2^9 or tooth and when cemented in position thex provide a \cr> posittx e fixation B) planning on the articulated model it is possible to incorporate hooks at corresponding points on upper and lower splints so that the two sets of splints can he wired together or fixed wuh elastic bands In this \va\ the fractured bone can be reduced and fixed against the unfractured bone in correct positron The clastic bands are extreme!) useful m c\crtmg prolonged traction when immediate reduction is not possible Although this describes the technique in essence there arc man) modifications of detail One of these is the use of the loci tng bar (rig 9, 19) In this the metal cap splint is made in two sections one on each side of the fracture line and the mechanic in making the splints incorporates a small fitting near the adjoining end of each to permit the screwing of a connecting bar to each splint so that the sections are comcrted into a single rigid unit It is not possible to luxe the locking bar prefabricated like the splint and instead a plaster of Paris impression it. made of the fittings in their correct relative positions with the fracture reduced \ suitable bar is then nude on the spot b) the dental mechanic VI ith tht bar screwed tighth m place the now single splint is wired to its fellow in the usual wax I he method is an extremcl) versatile one and can be applied to all fractures of the teeth hearing segments l60 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGC1U When teeth are not present it mil be appreciated that if the patient s dentures could be fitted and the fracture reduced on to the dentures with upper and lower occluding correctly the fracture would be accurately reduced It it possible when well fitting dentures exist to do this but often the denture has been broken is lost or fits so badlj as to be useless Nevertheless the principle is still used Impressions are taken and dentures without teeth —so called Gunning splints are made (Pig 9 20) These splints are circumfer entially wired on to the upper and lower jaws and subsequently to each other to obtain fixation (Fig 9, 21) In fractures of the edentulous mandible w ith minimal displacement and particularl) in the elderly pattern it is often enough when Gunning splints have been fitted merely to support the mandible against the maxilla with a firm barrel bandage without circumferential wires The absence of teeth makes it a little less essential to get absolutely accurate reduction for a denture can sub sequentty be fitted to compensate Fig 9 20 for an) slight irregulant) of alveolar Gunn ng spl nts showing the gutta percha 1 n ng between the t vo apt nts and between each spl nt and the al eolus alignment Saddle and interosseous wiring While a combination of the methods described suffices for most fractures a problem which often arises is that of the posterior fragment of mandible which has no teeth on it to provide a fixing point In such a situation it is sometimes possible to maintain adequate reduction when displacement is minimal by extending the metal cap splint backwards through the use of a horizontal saddle (Fig 9 22) The posterior fragment tending as it does to displace upwards and medially is in this way sufficient!) well controlled ni^Sp hfAJU i circunifcrcm ally wired 1 1 mand blc and niaxilli and MAX 1 LLO TACIAL INJURIES 263 the wire must be remoxed but it should if possible be retained until the fracture is. stickx so tint rcdnplatemcnt will not occur Simple loop wire Figure of 8 Wire Tie 9 13 Interosseous 1 ing Plaster head cap (Pig 9 24) It has "been pointed out the fractured maxilla is reduced on to the mand ble ta p . occlusion the final anchoring fixation is to the skull ^ 3 pro\ ided b\ means of a plaster head cap A cap of plaster of Pans encircling the scalp brou bt (i o; bejond the external occipital protuberance posterior^ 1 1 on JO 264 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCERI the supra-orbitil ridges anterior!}, is sufficient!} firmb anchored to the skull to proude a solid 3nd fixed base The nmillin splint, metal cap or Gunning, is fixed to the head cap bj a senes of rods connected b) unnersal joints When the fracture has Kic 9, 24 Planter head cap used as a point of anchorage in maxillar) fractures showing the metal rod incorporated in the plaster to which fixation is achietcd by the means indicated in Hj, 9, 25 been reduced and the splints wired together the final fixation is achieved b> tightening the universal joints to make the whole s)stem of rods quite rigid (Fig 9, 25) TRrATMrrs i Malar The finding of a malar fracture on an \-nv plate does not alwajs mean that surgical treatment of the fracture is ncccssarj The need or not for surger) is decided rather on the clinical examination The presence of infraorbital nerve anaestbesn, trismus, diplopia, obvious flattening of the cheek prominence— all of MAM LLO I *CIAL INJURIES 263 these are in indication for suigm Anaesthesia of the teeth b> itself is not an ind cation as the e!e\ation of tl e malar will Tig g zj Method of f xit on of a max llary spl nl metal cap or C unn n£ to the plaster head cap by means of a sj stem of rods and un ersal jo nts make no difference to this symptom It is the case where the slightest suggestion of flattening of check is the on!) clinical find ng that can cause d fficulta and whether or not the fracture needs to be reduced must be an md \idual decision one which incidentally 266 FUNDAMENTAL TECHMQUrs Or PL\STtC SLfcrTRV can reasonabh be shared with the patient But it must 1 c stressed that the decision to treat or not must be made as earlv as possible There is no place for a wait and see approach These fractures fix in their impacted position with great rapiditv and the chances of reducing a fractured malar more than a few da vs old arc not good and become much poorer as the days pass Another difficult group is the one with an undisplaced fracture or even an apparently normal \ rot but with infra orbital anaesthesia It is mv practice to elevate these malars even although no actual movement of the malar is felt because once treated recover) of sensation is uniformly rapid and complete Many of these would doubtless recover sensation spontaneoush but there is the remote possibility of the non recovering nerve developing a very distressing and intractable neuralgia Though the incidence of this complication is probably ven small indeed the simplicity of surgical treatment makes it preferable to taking the risk of a possible late neuralgia if the fracture is left untreated Surgical treatment consists of elevation and this is achieved either by a temporal approach or bv opening the antrum mtra orally and inserting an antral pack The temporal approach is suitable for most of the simple fractures The deciding factor is reall) whether or not the malar is more or less in a single piece and capable of being reduced by everting leverage on the anterior part of the zygomatic arch The arch fracture of course falls into this group When the fracture is comminuted to lever the arch would naturally only reduce part of the bone and because of tins it has to be reconstituted and supported bv an antral pack There is a further small group where the fracture after a temporal reduction tends to redisplace and it is necessary sometimes also to pack these Temporal reduction (Fig 9 26) This method depends on the anatomical fact that while the temporal fascia is attached along the zygomatic arch the temporalis muscle runs under it and a lever inserted between fascia and muscle can slide down deep to the arch to evert its leverage ^ ith the hair shav ed for 1 inch or so back from the temple an oblique 3 1 inch incision is made as far deeply as the temporal fascia taking care m placing it to ivoid the superficial temporal vessels It is worth pausing with retractors in the wound at this MWILI O-FACIAL INJURIES 267 point to positneH identifv the fascia before incising it in the same direction and for the same length as the shin There is often a vessel running on the deep surface of the fascia and it is Incision placed to avoid superficial temporal vessels Incising Elevator temporal fascia inserted Fig 9, 26 Temporal reduction of a maUr fracture advisable to cut ca refull) under direct vision \s a pathfinder for the lever Mclndoe’s. scissors are inserted under the fascii and slid along the surface of the temporalis muscle deep to the zjgomatic arch 268 FUNDAMENTAL TECHNIQUES OF PLASTIC SURCEM Various levers ha\e been devised and used to elevate the bone but the most commonly available and an eminenth satisfactory one is the orthopaedic Bristow’s periosteal elevator It is slid along the path found by the scissors and once under the arch it should be brought as far forward as the arch allows so that leverage can be exerted anteriorly if necessar) as well as laterally If added leverage is required a swab may be placed between elevator and scalp The degree of force needed depends on the degree of impaction and the delaj in treatment but considerable force can safel) be used In closing the incision it is onl) necessar} to suture the skin Antral reduction (Fig 9, 27) An incision is made in the upper buccal sulcus in the canine region and the soft tissues arc stripped off the outer wall of the antrum In the tvpc of malar fracture requiring a pack there is usuall) comminution of the wall and the index finger can be put stnght into the antrum When the opening is too small bone can be nibbled awa) to allow easj finger access If as ver) rarelj happens the particular part of the antral wall is intact an opening must be chiselled into the antrum and enlarged y\ ith rongeurs for access The finger m the antrum carefull} pushes out the walls to a correct position and the most important wall is the orbital floor The cavit) is then packed y\ith i-inch ribbon gauze soaked in Whitehead’s y amish (Pig lodoformi Co t B P C ) and tight!} yvrung out The striking feature of such a pick is the way it is found as clean, dry, and non smelling on removal as when inserted Enough packing is inserted to maintain the orbital floor at its correct level and buttress out the cheek prominence The end of the gauze is left protruding into the mouth to give an eis) start for its removal m 10-14 ** ,s usua * though not essential to parti} suture the mucosal inciston It is important not to pack too vigorousl} towards the orbit in case some of the pack gets pushed into the orbit itself giving rise to severe proptosis If such an occurrence is suspected an \-rav should be taken and if it confirms the diagnosis the pack must be removed immediate!) and a fresh one inserted with great care Patients with antral packs almost ahvavs dev clop a mild diffuse swelling of the cheek and this, only subsides slowly after the pick is remov ed It requires no treatment other than reassurance MWILLO-FACIAL INJURIES 269 Ttc 9 27 Reduction of a fractured malar b\ the antral approach and maintenance of reduction b> an antral pack 2J0 rUND^MENTlL TLCHf, IQlIFX Or FUSTIC SLUCCM Diplopia occasionally persists after deration and the incidence ot this rather distressing complication is highest whin the lateral part of the orbital floor has been see ere!', comminuted Orthoptic training exercises can then help m re educating cie movements and as a last resort bone grafts have been inserted to build up a smooth orbital floor at a more normal level Nose I\asal fractures requiring re- duction should be treated with the minimum of delaj for thev tend to fix in their displaced position in a matter of dajs The surgical approach depends on whether the fracture has re- sulted in deviation or collapse of the nasal bones Deviation This t\pc of dis- placement is caused hv lateral Molence and it can sometimes be corrected bj simple thumb pressure (Fig 9, 38) p irticularh f-, c 9 2 8 if t fit fracture is verv recent „ , r , , . . Unfortunatch tins manoeuvre Reduction ot a nasal fracture b> simple i i i thumb prcs«urc is apt to leave untouched the side depressed bj the fracture and reduces onl} the nasal bone which has been pushed out Manipulation from inside using Walaham’s nasal forceps is then required (Fig 9, 29) W ith the particular forceps for the side of the nose being manipulated the slim blade is inserted into the nostril and the broader blade outside T he blades are closed over the nasal bone which is then mobilised with a rocking movement of the forceps first laterallv and then medialh to distmpict it It is important to cozer the limb of the forceps pressing on the skin x-ith rubber tubing to protect it from undue local prissure With both bones mobilised finger manipulation can mould them into a sym- metrical position The septum should be inspected and if ncccs sarj reduced into a central position using \\ alsham’s septal forceps MAMLLO r\ClAL INJURIFS 271 as described below In practice reduction of the nasal bones frequcnth reduces the septal displacement simultaneous Collapse This displacement is the result of head on violence and it is essential from the point of \ lew of treatment to recognise Method of mampulat ng a nasal fracture us me \tal hams nasal foretps Note the use of rubber tubing to protect the skin front undue local pressure that the nose cannot collapse without cither buckling of the septum or fracture, and straightening or reconstitution automat icalh corrects the nasal collapse A\ alsham s scptnl forceps arc most efFectite for this purpose The blades of the tightK closed forceps 270 fundamental teciimqui-e of plastic 'deceit Diplopia occasionally pers.sts after delation and the incidence 01 this rather distressing complication is highest nhen the lateral part of the orbital floor lias been set erely comminuted Orthoptic training eternises con then help m re-educating etc motements and as a last resort bone grafts hate been inserted to build up a smooth orbital floor at a more normal In cl Nose Nasal fractures requiring re- duction should he treated with the minimum of dela) for thu tend to fi\ in their displaced position in a matter of days The surgical approach depends on whether the fracture has re- sulted in deviation or collapse of the nasal bones Deviation. This t\pc of dis- placement js caused by Literal Molence and it can somettmes be corrected bv simple thumb pressure {r ig 9, 28) particular!) r , c 9 2 s «f the fracture is very recent _ . t , r . . , Unfortunate!) this manoeuvre Reduction of a nasal fracture bj simple J . . thumb pressure is apt to leave untouched the side depressed h) the fracture and reduces onl) the nasal bone which has been pushed out Manipulation from inside using Walsham’s nasal forceps is then required (Fig 9, 29) With the particular forceps for the side of the nose being manipulated the slim blade is inserted into the nostril and the broader blade outside The blades arc closed over the nasal bone which is then mobilised with a rocking movement of the forceps first laterall) and then mediallv to disimpact it It ts important to cot er the limb of the forceps pressing on the skin tath rubber tubing to protect it from undue local pressure With both bones mobilised finger manipulation can mould them into a svm- metrtcal position The septum should be inspected and if neces- sary reduced into a central position using W’alsham’s septal forceps Mt\!l I O-Ftf Ml ISjl J IM 2yi a. described 1 clow In practise rrduui >n of tin. nml bones imjttcrtlc reduce* the ■stpul displacement Mmulnnroush Collapse Tins displacement ts the result it litad on \iuknce ail ii i> csuntnl from the point of \tcw c f trcitment to rtct^mst Mtt*i »1 cf Trjr puta r„ a natal fracture in rg \\ at I am » naol fr>rcrp\ ^ tc * ux nf tu* ber I I n,l ptnicvt Ihc »V n (i w it'd cl *cnl pf co ire the nose cannot c< llapsc without either hucMing of the *cptum w fracture and straightening or reconstitution automiticalh corrects the nasal toll ipse Walsh-im s septal forceps arc most e ectne for this purpose Hie blades of the ttghtl\ do cd fc reeps 272 FUNDAMENTAL TECHNIQUES OF PLASTIC SUKOEK* are so made that the\ remain apart Ic-n ing a gap corresponding to the thickness of the septum \\ ith a blade inserted into each nostril along the nasal floor the forceps are closed and swung up towards the nasal bridge (fig 9, 30) As the) mmc upwards the The use of \\ aJsham s septal forceps to stra chten the nasal septum blades straighten the septum or reduce an\ fractures Flic correction is completed as the) reach the bridge and lift the whole bridge line forward from its collapsed position I he manoeutre can be repeated if neccssars when correction is on!) partial at the first attempt An) associated broadening of the nasal bones can be reduced b) finger pressure if necessary after mobilisation with t ■\\alsham s nasal forceps M V\ILLO*FACHL INJUMfS 273 Septal haematoma. In a nasal injurv the state of the septum is as important as that of the nasal hones, and its management has been described It should also be examined for bieroatoma which if present can he evacuated b\ incising the muco*t Packing and immobilisation 1 ullc gras packing of the nostrils is adi liable if there is the slightest mohihti of the nasil bones or The p aiicr <>f f Jrn natal tp) nt u« d in the m! tie I fratlurt of note an I ftlnrp n th * plaiirr head cap in the na al fracture occurr np »» port of a m ddlc th rd fracture septum after manipulation On the one hind it provides support for the ■septum in its reduced position and helps to prevent the occurrence or recurrence of lucmatomi On tltc other tt pros ides some counter pressure for the piaster of Paris immobilising the nisal bones and prevents them from collapsing inwards It can he raum ed 10 .48 hours A plaster of Pans splint moulded to the nose (I ig 9, ^1) should he left in place for a week and worn at night for a further week or so Particuhrh when it occurs as part of 1 severe middle third fracture the comminution of the nasal hones m 15 he so gross tint the fragments cannot be maintained in 1 n irrmv ind fortv ird position with splint and pickinc alone A through ami throuch 272 FUNDAMENTAL TECHNIQUES OF PLASTIC SURGERY are so made that they remain apart leaving a gap corresponding to the thickness of the septum \\ ith a blade inserted into each nostril along the nasal floor the forceps are “closed ’ and swung up towards the nasal bridge (Fig 9, 30) As they move upwards the The use of Mahham s septal forceps to straighten the nasal septum blades straighten the septum or reduce any fractures The correction is completed as they reach the bridge and lift the whole bridge line forward from its collapsed position The manoeuvre can be repeated if necessarv when correction is only partial at the first attempt Any associated broadening of the nasal bones can be reduced by finger pressure if necessary after mobilisation with Walsham s nasal forceps MAXILLO-FACIAL INJURIES 273 Septal haematoma In a nasal mjur\ the state of the septum is as important as that of the nasal bones and its management has been described It should also be examined for haematoma which if present can be evacuated b\ incising the mucosa Packing and immobilisation Tulle gras packing of the nostrils is advisable if there is the slightest mobility of the nasal bones or The p’ister of Pans nasal spl nt us d in the isolated fracture of nose and alorg with a plaster head cap in the nasal fracture occurring as part of a m ddlc th rd fracture septum after manipulation On the one hand it pro\ ides support for the septum in its reduced position and helps to prevent the occurrence or recurrence of haematoma On the other it prov ides some counter pressure for the plaster of Pans immobilising the nasal bones and prevents them from collapsing inwards It can be remov ed in 48 hours A plaster of Paris splint moulded to the nose (Fig 9, 31) should be left in place for a week and worn at night for a further week or so Particularlv when it occurs as part of a severe middle third fracture the comminution of the nasal bones maj be so gross that the fragments cannot be maintained in a narrow and forward position with splint and packing alone A through and through suture tted hghtlj to prevent cutting in with post operative s 274 FUNDAMENTAL techniques of plastic SURGERV oedema oxer a strip of padded metal or rubber tubing (Fig g, 32) is ven useful in such circumstances and can be pulled forward against the rods attaching the intra oral splint to the plaster of Pans head cap if necessary When a particular fracture is seen too late for primary reduction or when the result of reduction is unsatisfactory the nose should fracture occurs as part of a middle th rd fracture Note the « re hold ng the no e forward to the \ertical metal rod A dental roll of cotton > ool can be used for padd ng agz nst the nose be left until all reaction has settled when a formal endonasal reconstruction can be considered Mandible When the fracture is of the tooth bearing segment treatment is usualh by upper and lower metal cap splints or Gunning splints wired together though if displacement is minimal eyelet or arch wiring may be sufficient If displacement is severe and manual reduction impossible dental fixation may require to be augmented by interosseous wiring Particularly is this so if the fracture is bilateral or at the symphysis Metal cap splints used in con junction with interosseous wiring provide a sufficientlv positive fixation but with Gunning splints circumferential wiring of the MAMLL.O-FACIAL INJURITs 275 splints to mandible and maxilla is neirl\ ahvavs necexsarj The problem of the edentulous posterior fragment is solv ed either bv using a saddle or b\ interosseous Miring With condvlar fractures no attempt is made to reduce the fragment whether or not the condvle is in the joint or dislocated The “joint” is treated as a psembrthrosia and re education of the muscles is relied on to establish good function With a fracture of bodj and condvle the bod} fracture dictates treatment Some patients have minimal upset with a single cond}!ar fracture and are able to chew soft foods fairl} quickl} with or without a period of rest de pending on the degree of initial discomfort If pain is severe fixation with e>elet wires or metal cap splints maj be neccs sar} for 2-3 weeks In sub sequent re-education of the muscles a training flange cn the splint (fig 9» 33) ma > b e required to tram the mandible to close in correct occlusion Bilateral cond}lar fractures require reduction of the open bite either manuall} or b) clastic traction on the fixing splints followed b} active exercises of the mandible in 2-3 weeks I'ractures other than simple cond}lar fractures are usuall) tested for union m 4 weeks If there is clinical union the splints can he removed but if the fracture is still spring} the splints should be wired together again until union is chnicall} apparent I ractures of the s}mph>sis and those which have become infected tend to be stow to unite It should be recognised that Vra} evidence of union maj not be present for man) months Middle third of face These fractures should be treated with the minimum of dclaj as thc> tend to fix rapidl} in their displaced and often impacted position The malars to some extent and the nose complete!) are supported b} the maxilla and it follows that the} can only Trninint; fiance incorporated into nutal cap splint to t ra ,n the mandible 10 close into correct occlusion 276 FUNDAMENTAL TECHNIQUES OF PLASTIC SLRCEK\ be properl) built on a solid foundation of maxilla reduced and fixed in pos t on The first step then is to reduce and fix the maxilla If the maxilla is floating or onlj slighth impacted it maj be possible to reduce it b) finger manipulation failing which it is necessarj to disimpact it with Walsham s nasal forceps (Fig 9 34) Dis mpact on of a rraxillarj fracture us ng \\ al ham s mat forceps Note the do vn sird d reel on of the leverage used to d s mpact the fractured bone Using upper and lower metal cap spl nts or Gunning splints wired in position the maxilla is then reduced on to the mand ble and wared to the mandibular splint It is then fixed to a plaster of Pans head cap (Fig 9 2 3 ) The malar is then reduced m most instances b\ the intra oral insertion of an antral pack Quite apart from the fact that the presence of the head cap makes the use of the temporal approach awkward the malar fracture occurring as part of a middle third fracture tends not to be of the type suitable for temporal reduction If it is felt that the fracture must be reduced b) a temporal approach the head cap should be cut back for a su table distance to allow the incision to be made The fractured nose is reduced in the waj alreadj described and depending on the predominant d splacement lateral or MAMLLO FACIAL INJURIES 277 backwards a plaster of Paris splint or a through and through suture may be the appropriate fixation Where there has been a longitudinal fracture of the palate the maxillary cap splint is made in. two parts with attachments for a locking bar (see page 259) which is applied after reduction The wires from maxilla to mandible proudmg accessory fixation can safely be removed in 4 weeks Depending on the clinical assessment of union the attachment to the head cap is remo\ ed simultaneously or retained for a further 2 weeks Fractures of maxilla and mandible The principle of reducing the fractured bone on to the un fractured cannot be applied straight away when maxilla and mandible are both fractured and steps must be taken to get the mandible into a reduced and rigid single unit on to which the maxilla can be reduced This usual!} means the use of inter- osseous wiring to fix the fracture or fractures of mandible in an accurately reduced position Reduction of the maxilla and fixation to mandible and head cap can then proceed m the usual waj BIBLIOGRAPHY Dawson R L G & r ordyce G L (1953) Complex fractures of the middle third of the face and their early treatment Brit J Surg 4 i> 254 Fm \\ k & U ard T (1936) Tl e Dental Treah eut of Maxilla facial Injuries 2nd Ed Oxford Blackwell Scientific Publications Lew in \\ (1954) Cerebrospinal fluid rhinorrhoea in closed head injuries Brtt J Surg 42, 1 INDEX Bold type denotes illustrations on pages apart from those containing the textual reference A Anal Assure use of split skin graft >74 >75 Anal fistula use of split skin graft 174 175 Anal stenosis use of split skin graft 174 *75 Anal surgerv use of split skin graft 174 *75 Arch wiring 33 7 Avulsion injuries — see Skin loss traumatic B Barrel bandage 236 Breast cancer skin coter tn t“3 Bonj trauma — re bkin coter bonv trauma in Bums t47 C Cap splinting 258 259 Cerebro-spinal rhinorrhoea 239 240 Cetrimide use of 1 8 Cheek repair of 132, 16S 171 Chlorhexidine use of 18 86 Cleland s ligaments 2t6 218 Cross arm flaps — see Flaps types cross arm Cross finger flaps — tec Haps t'pes cross finger Cross leg flaps — see Flaps types cross leg Crushing injuries hand of — see In juries hand of crushing Cutting injuries hand of — see In juries hand of cutting D Decubitus ulcers — see Pressure sores Demoting injuries hand of — see Injuries hand of de gloving limbs of — see Skin loss traumatic limbs Detaj, 104 106 physiological 106 surgical so 3 106 Dermatome drum — see Drum dermatome electric — see Flectric dermatome Direct flap 118 e( seq dela\ use of pj diusion of flap 131 123 immohil sat on 124 127 lower limb in i’6 upper limb in 124 121; joint stiffness m 127 r»8 lower limb — see Flaps tv pes cross leg plaster of Paris prefabricated 126 127 raw areas asoidanccof 120 I2X sepsis elimination of 107 upper limb use in i->3 Dissecting forceps 21 23 Adson 22, 23 Gillies 22, 23 Me Indoe 22, 23 Dog ear 31 excision of 31 failure to excise result of 31 32 rotation flap in 139 transposed flap in 139 Donor areas split skin graft 65 grafting of 78 healing of 76 77 care of 77 78 whole skin graft direct suture of 63 grafting of 63 Drum dermatome 72-75 graft cutting 73, “4 graft thickness 74 indications for use 72 lubrication 74 mode of use 72 73 use of lacquer 74 7J remotal of graft 75 E Ear 168 170 272, 173 excision partial 170 172, 173 total *67 *69, *72, 173 prosthesis use of X72 279 280 fundamental techniques of plastic surcert Ear (contd ) repair, methods of, 168, 170, 172, Ectropion, ejelids, of 229 correction of, 229 232 diffuse, 229 localised, 229 Electric dermatome, 75. 7& advantages, 75, 76 burns, use in, 76 disadvantages, 75 mode of use, 7s, 76 Exposed grafting, 89-93 E\c injuries, 240 Ejelet wiring, 256, 257 Ejehds, ectropion of — see Ectropion, ejelids, of flaps use of, 232-233 glabellar, 169, 235 temporal, 234, 235 upper eveltd, 233, 23s injuries — see Injuries, cvelids, of grafting, method of, flavine wool using, 230 SiTFNT, using 230-232 grafts, preparation for, 227-230 tvpes, 227. 228 use of, 227 233 post operative care, 232 F Finger-tip injuries — see Injuries, fing'r-tip, of. Flaps, care of, 107. 108 definition, 95 difference from graft, 95 effect of, haematoma, 107, it6 kinking, 102, 103 oedema, 103 tension, 102, 103 haematoma, effect of — see Flaps, effect of haematoma head and neck, of, 139 el seq carrier segment, 142 planning, 141, >42 seconder) defect, 141 supra-orbnal, 140, 141, 170 temporal, 140, 167. 234 transfer, 142 immobilisation, 124-127 joint stiffness m, 127, 128 kinking, effect of— fee Flaps, effect of kinking neck, of — see Flaps, head and neck of Flaps (contd ) necrosis of, clinical picture, 103, 104 prevention, detav , b) , 105, 106 flap care, h>, 107, 108 initial design, b\, J04 treatment of, 108, 109 neuroca'cuhr island, 200, zoi oedema, effect of — #ee Flips, effect of oedema planning of, deciding type, 96-9S defining defect, 9 (>, 97 in reverse, 99 100, 141, 142 planning transfer, 99 101 site of defect, 9S size of defect, 98 time factor, 98, 99 ravv areas, avoidance of, split skin graft, use of, 120, til, 199, 215, 2x6, 217 irap-door, upes, cross-arm, 98, 199, 212, 214, 215 cross-finger, 98, 216-219 cross leg, 98. »23, 124 cheek, *3*. >68. 17* direct— me Direct JUp ejelid, 232-235 fan, 163, 164 forehead, 140. 141, 165. **7. 234 glabellar, 166, 269, 235 hp switch, i6t, 162 lower lip, 165. naso labial, 168 rotation— fee flotation flips temporal, 140. J&7. 234 thenar, 219. 220 transposed — ice Transposed flaps tube pedicle — fee Tube pedicle upper lip, 165, 167 use in, bonv trauma, 182 185 hand surged , 210 220 neoplasia of head and neck, 157- ncoplasu of skin, 156 nerve injuries, 185 non -paraplegics 186 osteomicluis. 185 paraplegic*, 1 86-192 plantar wans t76 178 radrodcrrntlitu, 154 15** radionecfO s,< . *54-*5** tendon injuries , 185 ulcers, ischul, 190 192 iNDEX 281 Flaps, use in (contd ) ulcers, sacral, 1S7, 188, 189 ulcers, trochanteric, 188, 189, 190 vascular adjustments, rot, 102 vascular aspects, 10 1 et seq. vascular changes, toi, 103 vascular insufficiency,, 102, 103 tiabihu of, 15, 104 flat me wool, ejehd grafts, use in, 230 grafts, use in 83 preparation of, 83 Forceps, dissecting — see Dissecting I forceps ! Fractures, alteolar, 24 linger — see Injuries, hand, of, associated fracture malar, of, 242, 243, 248 250, 255, 264-270 antral reduction, 268, 269 arch fracture, 242, 243 clinical picture, 248 250 comminuted fracture, 242, 243 diplopia in, 249, 270 simple fracture, 242 temporal reduction, 266 268 X-ray examination, 257 mandible, of, 244, 245, 251, 252, 25S, 274, 275 clinical picture, 251, 252 displacements, 245 246 examination for, 231, 252 sites, 244, 245 angle, 244 body, 244 condole, 244. 2 47 symphysis, 244 treatment, 274, 275 maxilla, 245, 247, 249, 252-254, 255, 275-277- clinical picture, 252-254 diagnosis, 252, 255 patterns of fracture, 245, 247, 249 treatment, 275 277 types, 245 2 47. 249 X-ra\ examination, 255 maxilla and mandible, 277 middle third, of, 241, 247, 249, 252-235 275. 276 clinical picture, 252 254 components, 248, 249, 253 diagnosis, 252-255 examination for, 254 treatment, 275“ 2 77 X-rav examination, 255 nose, of, 243, 244, 251,255,270 274 clinical picture, 251 septal injury in, 243, 244 treatment, 270-274 Fractures, nose, of (contd) tvpes, 243. 244. 270 272 X-ray examination, 255 skin loss in, 181-185 Free slan graft, 50 et seq , and see Split skin graft and Whole skin graft l application of graft, So 82, 87, 8S bridging phenomenon, 57 dressing of, 83, 87, 88 effect of haematoma, 55 factors in take, 53 56 graftable areas, 53, 54 influence of immobility, 56 influence of pressure, 56 influence of recipient site, 53, 54 ‘ physiological fixation’ , 55, 80 pressure dressing 83, SS recipient area, 78 et seq. take, process of 52, 53 ungraftable areas, 53, 54 vascularisation of, 52, 53 G Glabellar flap, 166, 169, 235 Granulating area, 84-89 antibiotics use of, 86 bacterial flora, 85, 86 B proteus, 86 Bact. coh, 86 Ps. pyoiyaneo, 85 Staph, aurcits 86 Str pyoqenes, 85 clinical appearance, 84 clinical assessment, 84 graft, apphcttion of, 87 89 | graft preparing for, 86, 87 . pressure, use of, 87 stamp grafts, use of, 8S, 89 unsatisfactory, t\pes, 84 Gravitational ulcers — see Varicose ulceration Gunning splints, 260, 261 H Hand injuries — see Injuries, hand Haematoma, free skin grafts, in, 53, 54, 55 I pressure, pretention b\, 32 tube pedicles, in 1 16 Hand surgert , defects distal to webs, 214 220 cross-arm flaps, use of, 214, 215 cross-finger flaps, use of, 216-219 distant flaps, use of, 212, 2x3, 214 local flaps, use of. 214-220 thenar flaps, use of, 219, 220 defects of scteral fingers, 213, 214 defects proximal to webs, 210-212 2§2 rUNDAMLNTAL TrCHMQUrs Hand surgerv, defects proximal to n cbs (contd ) cross arm flaps, use of, 212 direct flaps use of, 123, zil, :i; transposed flaps, use of, 210 212 tube pedicles use of, 210 212 direct flaps, use of, 125, zti, 215 dressings graft, of 209 dressings, post-operative, 221 flaps, use of, 210 220 free skin grafts use of, 208 209 local flaps, use of, 210 212 oedema preventionof, 197, 198, 221 plaster of Pins use of, 222 post operate e care 221 222 split skin grafts, use of 208, 209 themr flaps use of, 219 220 transposed flips, use of, 210 212 \v hole skin grafts, use of, 209 Z-plistv use of 206 2 08 central Anger «cars, in, 206 contractures, in 206 207 palmar scars, in 206 208 web deepening in, 206, 207, 208 Head cap 263, 264, 265, 273, 274 Hihitane, use of, 18 86 Hidrademtis, 178, 179 excision and grafting, i;8, 179 pathological features, 178, 179 Hook skin, 21, 22, 26 Humbv knife, 65-73 lubrication of, 68 preparation of, 68 setting of, 68, 69 Hypertrophic scirx — see Keloids Injuries, degloung — see Skin loss, traumatic, limbs Injuries evelids, of, 224-227 anatomicnl considerations, 224-226 conjunctiva in, 226 landmarks in, 224-226 lid margin in, 225, 226 palpebral ligaments m, 226, 227 reconstitution, 224 tarsal plates in, 226 tear duct, reconstitution of, 224, 225 Injuries, finger -tip, of, 200-202 clinical feilures, 200-202 flips, indication* for, 200 202 grafts, indications for, 200 202 partial avulsion, 202 proximal amputation, use of, 200 types, 200 202 Injuries, hand, of associated fracture, 202, 203 cutting and slicing, 195* or piavjic si'bofry Injuries, band, of cutting and slicing (eontd ) assessment, 105 clinical examination , 195 flaps, indications for, 195, 196 split-skin grafts, use of, 195, 196 crushing, 196-198 pathological features, 196 post-operative core, 197, 198 suture, use of, 197 degloung, njS, 200 assessment of, 198 clinical examination in, 198 split skin grafts in, 198 tourniquet test tn. 198 skin coicr in, 194, «95 Injuries, mixillo-fjcul, 236 el seq„ see also fractures of separate complexes associated injuries. 237 240 chest injuries, 240 cranial injuries, 238 240 eye injuries, 240 facial soft tissue injuries. 23S eerebro-spinal rlnnorrhoea, 239, 240 clinical picture, 24S 254 carl) care, 236 237 methods of reduction and fixation, 255 2f’4 patterns of injury, 24° *4 S tracheotome, use in, 237*^4° treatment, 264-277 X-ra\ examination 2jj Injuries, nerves, of — see Skin cover, nerve injuries, tn Injuries, tendons, of —set Skin cover, tendon injuries, in Injuries, thumb, of, 19^1 >!>$• >99. 201 Instruments, surgical, drum dermatome — see Wrum dermatome electric dermatome — see Heetnc dermatome forceps, dissecting, 22, 23 Adson, 22, 23 Cullies, 22, 23 Mclmloe, 22, 23 knife, Plair, 65, 66 Ilumby, 65 66 needles. 2 1 needle holders, Cullies, 2i, 22 Ktlner, r 1 , 22 scissors, 23 skin hook. 21, 22 Interosseous w irmc, 262, 263 Ischial ulcers, 190 192 blind flap, 200, 201 INDEX J Joint stiffness jn flap usage, 127, 128 R Keloids, 34-39 ACTH, use of, is ace, influence of, 35 clinical picture, 35 cortisone, use of, 35 line of election, 33 problem in practice, 36 39 race, influence of, 35 sex, influence of, 35 site, influence of, 35 surgery , use of, 39 time, efteci of, 35 treatment, 35, 36 X-ravs, u«e of 36, 39 L Langer’a lines, 4 Lateral line of finger, 204, 206 Lines of election, 4, 3 face, m, 4 flexures, in, 4 Lip repairs, 159 166 full-thickness defect, 159 164 165, 1 66 direct closure, b>, 150 169 fan flap, by, 163 166 lip-switch flap, by, tfit, 162 partial thickness defect, 165, 167, 16S forehead flaps, by, 16s, 167 neck flaps, by, 165, 168 , Lip shave, 160, 161 M Malar fracture, see Fractures, malar, of Mastectomy , use of spht-skin graft | fol’owing, 173 Materials, suture — see Suture materials Maxilla, fracture of — see Fractures, maxilla, of Maxillo-facnl injuries - — see Injuries, maxilto-facial Methtcilhn, 86 Middle third fracture — see Fractures, middle third, of Middle third of face components, 241 N Nasal fractures — see Fractures, nose, of Ncedtes, 2t Neoplasia of head and neck — see Skin loss, post -surgical, neoplasia, head and neck 283 Neoplasia of skin — see Skin loss, post-surgical, neoplasia, skin Nerve miuries — see Skin cover, nerve miuries, in Neurovascular island flap, 200, 201 Nose fracture — see Fractures, nose, of Nose, methods of repair, 140, 141, 169 O I Osteomvelitis, skin cover in, 185 r Paraplegics — see Pressure sores para- plegics, in I Pedicle — see lube pedicle ‘Physiological fixation *, 55, 56, 80 I Placing the scar— see Scars, placing of j Planning of flip — see I lap planning ■ Plantar warts, 176 »7S ' flaps, use of, 177 grafts u«c of, 176, 177 marginal recurrence, 176, 177 Pressure dressings, grafts, use in, 83, 84 87, 88 wounds, use in, 32 Pressure sores non-piraplegics, in, 186 flaps, use of, 186 grafts, use of. 186 paraplegics, in, ischial ulcers, 190 192 sacral ulcers, 187 18S 189 treatment iSh tqz trochanteric ulcers, 188-190 Provtheses, 140, 158, 172, 173 R Radiodermatitis — see Skin loss post- radiational Radionecrosis — see Skin loss post- radiational Recipient area, 7S et seq. surgically clean, 7S-S4 haemostasis 78 So adrenaline, use of, 78, 79 chin syringe use of 80 ligatures, use of, 79 marginal bleeders, 79 nosadrtsrsiine, u«e of 7S 79 orange stick use of, 80 sucker, use of, 79 time, use of 79 vaso-constrictors use of 78 79 preparation 78-80 Reverse planning, 99, 100, 141, 142 Rotation flaps, back-cut, closure of, 138 139 back cut, use of, 133, 138 2S4 FU:\DA 1 IENTAL TECHNIQUTS Or PLASTIC SCBCFB1 Rotation Paps (contd) design of, 134, 135, *37-139 dog-ear in, 138 planning of 134.135 principles, 131-133 tascular limitations, 174 S Sacra! ulcers, 167, 1S8, 189 Saddle use of, 260, 261 Scalp avulsion — see Skin loss, traumatic, scatn Scar length, 31 Scars, lines of election for — see I ines of election Scars placing of, hand in ->04 206 hair line, inside, 5 line of election, in, $ natural junction, in, 5 natural line, in, 5 wrinkle m s Scars, stretching of, 7 Scars, tattooed — see T nttooed sorting Scissors, 23 Scrotum, avulsion of — see Skin loss, traumatic, scrotum Septal haemotoma, 251, 273 Septal injur), 243, 244, 271, 272 Skin, avulsion of — see Skin loss, traumatic, limbs and In- juries, hand, of, degloung Skin cotcr, bon> trauma in, 181-185 cross-leg flap 183 direct flap, 182, 183 distant flip 182, 183 local flap, 182 primart suture, iSr hand injurx in — see Injuries, hand, of nersc injury, in, 185 osteomjelitis, in, tS? tendon injury, in, 185 Skin heating of, 3 Skin hook — see Hook, skin Skin loss infective, 15b grafting criteria, 1 ch split skm graft, use of, 156 Skin loss post-surgical, 156 el *0/. anal surgcr> , in, « 74 « 75 breast cancer, in 173 grautattonal ulcer, in, 175. 176 hidradcmtis, in, 17S, 179 neoplasia, head arid neck, flaps, use of, 159 grafts, use of, 157. 158 prostheses, use of, 158, *72, «7J repairs — see Anatomical Region Skin-loss, post -surgical (mnhi ) neophsia, skin, flaps, me of, 157 grafts, use nf, 157 Skm loss, post-rad lational, 154-156 biopst , use of, 1 56 car, m, 154 fljps, use of, 154 grafts, me of, 154 mastectomy scar, in, 154 oral cant), in, 154 pathological factors, 154. 156 sequcstrectomt, 154, 156 treatment, 154, 156 Skin loss, traumatic, limbs, of, iso 1 S3 a tubed skin, use of, 153 bonv mjurt in, 153. 181-185 clinical tests, 152 joint injuries in, 153, 181-185 mechanism, (5* slough excision, 152 treatment, 152, 153 grafts, use of, 152, 153 tourniquet test, 152 ttpes, « si scrotum, of, 153 scalp, of, 147-tso complete, 148-150 grafts, use of, 148, 149, 150 mechanism, 147, 148 partial, 148 pcricrani il lots, 148, 150 subsequent care, ISO treatment, 148, 149, 150 Skin neoplasia— see Skm Joss, post- surgical, neoplasia, skm •'kin sterilisation, 17, «8 Skm suturing, 23, 24-2S instrumental tting, 23 atraumatic handling, 24, 26 Slicing injuries — ter Injuries, hind, of, cutting and dicing Slough removal. 86, 87 cusol, use of, 86, 87 phosphoric acid, use of. 87 pyrusieacid, use of, 87 Mreptodomase, use of, 67 streptokinase, me of, 87 trypsin, U«c of, 87 surgical, 86, 87 electric dermatome, l*> , 87 Ilumbv knife, hi, 87 Split skm grafts, 64 el set]., and irf clut I ree skin grafts anal surgery, use in, t“4 <75 application of, 8i, 82,87, 88 assessment of thickness, 70 72 bleeding pattern, b\. 7°, 7* tran'luccncs of graft, l'», 70. 7* INDEX SpliC-skm grafts (canid ) bony trauma, use in, 182-185 definition, 51 degloving iniurtcs, use in, 152, *53 donor area — fee Donor areas spbt- skin graft donor sites, 65 placing of arm, 67, 68 placing of leg, 66, 67 ear, use in, 172, 173 exposed method, 69, 91, 92 eyelids, use m, 227-232 forehead, use in, 148, 149 gravitational ulcer, use in 175, 176 hand surgery , use in, 208 209 head and neck neoplasia, use in 1 57 159 hid rad nut is, use in, 178, 179 hjiluromdase, use of, 93 infective skin loss, use in, 156 instruments for cutting, Blair kmfe 65, 66 drum dermatome —see Prom dermatome electric dermatome — see Electric dermatome Humby knife — see Humby knife local anaesthesia, u«e of, 93 mastectomv, in, 173 properties, 51 radiodermatitis, in, 154 radionecrosis, in, 154 refrigeration of skin, 93 scalp avulsion, use in, 148-150 scrotal avulsion, use in, 153 skin neoplasia, u«e in, 157, 15# stamp grafts — fee Stamp grafts storage of, 93 suturing of, 81 82 Vies of 64 wounds, use in, 14 varicose ulcer, use m, 175 *7^ Stamp grafts, 8S, 89, 90 advantages, 88, 89 disadvantages, 88, 89 indications for use, 89 Sterilisation, skin of 17. 18 Stitchcraft, 18 el seq. STENT, use of, 230 2 32 Surgical imqnMfteMs — *** 3?&Vsvv- '• merits, surgical Suture marks, 14 15, 16 Suture materials, iB, 20 2t cat-gut, 20 linen, so mlon, at silk, 29 silk- worm gut, 21 stainless steel, 20 Sutures — see Wounds, suture of Sutures, removal of, 33, 34 T Tattooed scarring, 14, 15 prevention of, 14 Tendon injuries — see Skin cover, I tendon injury, in 1 Three point suture, 29, 30 | Thumb injuries, 196, 19S, *99, 201 Tourniquet test, 152 I hand intunes, use in, 198 I Tracbeotomv, 237-240 Transposed flaps, back cut in, 137 design of, 134-137 1 dog ear in, 139 I planning of, 134 136 principles, 133, 134 vascular limitations of, 134 Trap-door scarring, treatment, 9 it Trochanteric ulcers, 188-190 lube pedicle, 109, et seq , see also Flaps abdominal, 110, xix acromto pectoral, 109, 110 circulation tests, 115, 116 double attachment, 117, 118 haematoma, effect of, 116 interval care of 115 raising of, uo itz transferor! carrier, 116, 117 transfer to earner, 112-114 waltzing, 1 1 8, 119 Tumours, influence of pathology on treatment, »S6 i59 head and neck, in 157 159 skin, in, 156, 157 U Ulcers, decubitus — set Pressure sores Undercutting, 18, 19 face, use in, 18, 19 limbs, use in, 18, X9 sc-ilp, use in, ib, 19 tension, use in eliminating, 18 trunk use in, 18, 19 wound preparation, use in, 18 V Varicose ulceration, 175, 176 excision and grafting, 175, 176 grafting of ulcer, 175 \ nbility of flaps, assessment, 15 sS6 FLNDAMFSTAL TCCIIMQLC' OF FL\^Tl( *>LK(.m W I Uarts phmar~ see I Ian tar warn W hole skin jrr»ft 47 n teq tee oho l rcc akin craft a pp! cation of craft 8t cuttnuj Kraft 6* 63 64 I definition 51 donor site* 5 60 | ahdonen 60 antccubital fosta jg 60 care of 6a Rroin 59 60 post auricular j S supraclaiicular 59 thich 60 dre sink of craft 83 84 e el dt use in * .j* hand surcert use in .0 ) method of use (>o 6. ptttern mak nc of (1 pattern materia!* 60 plxruar watts use in fft I properties 51 s" I scrota! avulsion use in 153 tutunni 81 tattoo nc matth ng po nts 6t 6* I Wounds . care of 3 et teq errors in treatment 14 tj 16 facial 14 hcalinj, of 3 match np 14 ’24 mctlodof 14 results of fa lure ty 16 ! poM-opcrat sc cate 3 34 post -opera 1 1 vc support 34 preparat on of 12 tS 1 conservative tre-tment 13 14 j dirt ren sal of 12 excision 13 non traumai ed 12 tan xxd scarf nc 14 *5 • traumatised 12 14 undercut! nj* editc 18 19 j stretching of J prrseni on 1 ) 18 ’S I cat pit 28 continuous intradentsal jR t n lercuttmj, H / p!a t\ 6 skin tnueo a! suture 14 split skin craft use of 14 suture remosal ’4 Wounds suture of T .S int suture .9 JO W ounds suture of (eon! I > types of 24 8 continuous S Uin-ft" 27 wtra iermal s- t S I oter and 0 er 27, .8 1 interrupted '4 .8 1 cat cut 27 x I simple loop 34 .3 xert cal mattress .< 5^ ; Wound trns ion f t8 1 effect of ft 1 pretention tS I v undercut! ni. if 1 hy / plast) ( j}> Wounds tt pc of dress it 3- j\ ) Wounds tub I tv assessment it /-plast t r 12 49 4) ancle sire effect of 4* 43 hasic manocimc 40 41 4a construct n of 4 41 contracture* u*e n 40-4 1 defn t n 49 flam Woof supplt of 48 4 1 ntcrosM of 4S pretention of neerotu 48 4/ hand aurgert in— tee Hands tpe J pit tt use of lateral trn« on d Ifut on of 44 Jmblcigt! eifeel t f 41 muUipte 44 47 48 coni nuous 4- parallcl 47 sket 4“ 48 dBCottintu us 47 c olution of 47 factors tn 44 4- 4S plann nt 4J 4- 4R select tort of llip* 4t scan u*r in ( 1? carry tW - 8 p! emc / 1 1 1 «r> ttauma r I n of * tention red >tfi}*ut n- < trap door scar n jo tsout d lefitl e jual atiori of 7 sac of 44 tensw n red ifntn non of 4 t! eorx of 49 44