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146 / Complications of Local Flaps: Prevention and Management
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ABC
Figure 13-4. Ischemic cheek fl ap. (A) Initial defect. (B) Immediate postoperative appearance showing early
signs of ischemia. (C) Postoperative result with scattered tissue loss.
infi ltrative, or morpheaform tumors. Associated parasethesias or neural symptoms should raise sus­picion for perineural invasion. Whereas standard hospital frozen sections are often unreliable, Mohs micrographic excision minimizes tissue loss and maximizes the prospects for successful tumor clear­ance. If fl ap reconstruction is undertaken and a pos­itive margin later identifi ed, reresection may prove diffi cult. Furthermore, subsequent reconstructive options are limited due to the prior procedure.
Ischemia and Flap Loss
Flap ischemia refers to impaired delivery of blood, oxygen, and nutrients to tissues. Most tissues can
ABC
survive with only a fraction of the usual blood fl ow, provided that neovascularization occurs to reduce dependency on the pedicle blood supply. However, sustained ischemia leads to tissue necrosis (Figures 13-4–13-6). Several factors conspire to increase the risk of ischemia in the local fl aps—transection of small feeding vessels, torsion of vessels along the pedicle of the fl ap, and tension across suture lines. Transection of small sympathetic nerve branches induces release of catecholamines with resulting vasoconstriction. Thromboxane A is also released from small-platelet thrombi. The collective effect of these vasoactive substances is to decrease perfusion and increase the risk of fl ap loss. Overzealous fl ap
Figure 13-5. Ischemic nasal sidewall reconstruction with V-to-Y advancement. (A) Initial defect. (B) Immediate
postoperative appearance showing ischemia. (C) Postoperative result with fl ap necrosis.
ABC
Figure 13-6. Ischemic nasal tip reconstruction based on nasalis. (A) Initial defect. (B) Immediate postoperative
appearance with ischemia. (C) Partial local fl ap loss.
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thinning, charring of tissues, and excessive tension across the wound closure all impair wound healing potential. Minimizing the impact of these factors during fl ap design and dissection will markedly di­minish ischemic stress.
The signs of ischemia are easily recognizable. Reduced fl ap temperature, coupled with slow or absent bleeding on pinprick, is indicative of arte­rial insuffi ciency. Purple discoloration and bloated appearance to the fl ap with immediate bleeding on pinprick indicates venous congestion. Venous con­gestion is tolerated more poorly than arterial insuf­fi ciency, although either may cause fl ap demise. For arterial insuffi ciency, release of overly tight sutures may allow for salvage of the fl ap. Arterial insuffi cien­cy due to kinking of the fl ap pedicle or tight dressing is reversible, provided the diagnosis is made early. A fl ap showing arterial insuffi ciency may be returned to the donor bed for delay before performing the re­pair at a future time. This allows for enhanced blood supply to the fl ap, so that it may be more resistant to ischemia when reelevated. For venous insuffi ciency, suture release or medicinal leeching may allow for salvage. Antibiotic coverage with fl uoroquinolones (ciprofl oxacin) is recommended as a prophylaxis against Aeromonas infection if leeches are used. The same features of a hostile bed that predispose to local fl ap loss may also be associated with poor take of skin or composite grafts (Figure 13-7).
Whenever possible, it is preferable to salvage as much of a threatened fl ap as possible. Once the extent of ischemia has demarcated, debridement should be performed. Removal of nonvital tissue decreases the risk of infection and allows for granu­lation. Devitalized tissue is removed with sharp dis­section until bleeding tissue is encountered. Tissue that has good adherence to the underlying surgical bed is usually viable. If there is only partial-thickness loss, a debrided surgical bed can be left to granulate in preparation for secondary skin grafting. Inset of
a new fl ap is likely to be necessary, however. Meticu­lous wound care, including use of moistening oint­ments, and either wet-to-dry dressings or peroxide promotes favorable healing.
Unsightly and Malpositioned Scars
Full-thickness incisions invariably result in visible scars, but skillful placement of incisions and me­ticulous surgical technique minimize the incidence of unacceptable scars. Hypertrophic or keloid scars often benefi t from steroid injection. In other cases, an abnormal appearance results from poor place­ment of incisions. Failure to respect facial aesthetic units invariably results in more conspicuous scars and abnormal appearance. One common example is blunting the crease of the alar sulcus, which forms a boundary between the nose, cheek, and upper lip. The use of interpolated cheek fl aps for this area is preferred to advancement or transposition fl aps, which tend to efface this aesthetic border (Figure 13-8). It may be preferable to use separate fl aps or a combination of a fl ap and skin graft to preserve normal boundaries and optimize cosmesis. For ex­ample, defects extending from the nose to the ad­jacent cheek are often best repaired with separate fl aps. This approach allows for camoufl age of the scar within a shadowed area while also preserving the normal concavity of the sulcus between the nose and cheek.
Patient-related factors also infl uence fl ap selec­tion. Incisions that are made in thick, sebaceous skin are more likely to widen or leave depressed scars. Broader fl aps, rather than intricate fl ap designs, minimize risk of unfavorable scars in such patients. Young patients heal differently than older patients. Although the risk of wound dehiscence is lower in young patients, younger patients have less tissue laxity and also often develop exaggerated erythema and hypertrophy. Applying sunscreen over a newly
ABC
Figure 13-7. Necrosis of composite graft. (A) Initial defect. (B) Immediate postoperative result. (C) Necrotic
graft at follow-up.
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ABC
Figure 13-8. Blunting of melolabial sulcus with fl ap reconstruction. (A) Melolabial fl ap. (B) Cheek fl ap.
(C) Cheek fl ap.
epithelialized surface minimizes postinfl ammatory hyperpigmentation. Due to the signifi cant remod­eling of scars in younger patients, it is preferable to delay revision in children for a year to allow time for spontaneous improvement. Patients with hyperfl ex­ibility possess more elastin and are therefore more likely to have widened scars. Gorlin’s sign refers to the ability to touch the tongue to the nasal tip, and Beighton’s sign refers to the capability to bend the thumb back to the fl exor aspect of the forearm; both are signs of excessive or abnormal fl exibility. These individuals are more prone to suboptimal scarring.
Trap Door Deformity
Trap door deformity refers to the tendency of a fl ap to mushroom up or pincushion in its center, leaving a depressed scar around its periphery (Figure 13-9). It results from persistent edema, poor lymphatic drainage, and accumulation of serum and hemato­ma deep to the fl ap. Flaps that have curved bor­ders are particularly susceptible to this deformity. The cicatricial contraction of the edges of the fl ap results in central bulging. The scar sheet beneath the fl ap is thought to contribute to this deformity. Some degree of trap door is inevitable with most bilobed fl aps due to the combination of dependent edema
coupled with the curved shape of these fl aps, espe­cially when performed in patients with very seba­ceous and thick skin. Generous undermining of the skin and soft tissues can reduce the tendency toward scar contracture. Superiorly based fl aps are more prone to this problem due to venous congestion and disrupted lymphatic channels.
Although trap door deformity does tend to im-
prove with the passage of time, a number of inter­ventions may be helpful. Dermabrasion is useful for smoothing irregularities in nasal bilobe fl aps and improves the blending of skin texture and contour. For more prominent trap door deformities, aster­oid injection to the subcutaneous tissue may be performed initially. Usually low concentration tri­amcinolone acetonide (10 mg/mL) is preferred to minimize the risk of tissue atrophy. Not uncommon­ly, surgical revision proves necessary. In this case, correction involves incising the borders of the fl ap, removing subcutaneous fat and scar, and generous undermining followed by redraping with placement of Z-plasties, to minimize the risk of recurrence.
Distortion of Mobile Structures
Distortion of mobile structures is another impor­tant consideration in a local fl ap reconstruction.
ABC
Figure 13-9. Trap door deformities, demonstrating pincushioning and dependent-fl ap lymphedema with venous
stasis. (A) Cheek transposition fl ap. (B) Note fl ap (modifi ed rhomboid fl ap). (C) Island melolabial fl ap.
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Mobile structures include the eyelids, lips, earlobes, and nasal alar rim. Although such distortion may occur at time of initial reconstruction, it is more commonly observed as a late effect of healing. Be­cause tissues heal by scar contraction, it is not un­common for contractural forces to exert themselves on structures that are not rigidly anchored. There­fore, the potential for future tissue distortion is best identifi ed at the time of initial surgery.
Eyelid malposition is a common—but generally preventable—problem after local fl aps in the peri­orbital region. Distortion of the lower eyelid is more frequent than the upper eyelid due to the effect of gravity and senile laxity of the lower lid. Among the more common eyelid complications associated with local fl aps are symptomatic dry eyes, lagophthal­mos, lacrimal duct obstruction or avulsion, impair­ment of visual fi elds, or visual loss. Excessive tension on closure in the vertical dimension will predis­pose to eyelid retraction, with secondary effects on hydration of the cornea and risk for exposure kera­titis. The ability of the eye to adequately generate a tear fi lm is impaired with malposition of the puncta as well. Direct injury to the lid may also occur with surgery; therefore, it is important to be familiar with the cross-sectional anatomy of the upper and lower eyelids.
The lip, earlobes, and nose are also prone to dis­tortion that creates a variety of functional and cos­metic diffi culties. Distortion of the lip may include blunting of the lateral commissure, lip ectropion, or lip entropion. Distortion of the lips can result in cosmetic deformity, with an unacceptable appear­ance; but it may also have functional consequences. Abnormal distortion of the lip may interfere with speech, facial expression, and control of salivation. Excessive desiccation and aberrant salivation can also predispose to dental caries. Alar retraction is a signifi cant risk when repairing nasal defects within a few millimeters of the alar rim with a local fl ap. Use of structural grafting and careful fl ap selection can avoid a vector of tension that is directed superiorly. Excessive tension on the earlobe may result in “pixie ear” where the earlobe is abnormally elongated.
to resurface the nasal interior will doom an other­wise well-conceived nasal reconstruction due to late effects of scar contracture. The initial result of such a repair may be quite satisfactory, but the repair does not withstand the test of time. The undersur­face of covering fl aps contract as raw tissue surfaces heal secondarily, distorting the external shape of the nose and narrowing the nasal airway. Nasal lin­ing fl aps that are too thick, insuffi ciently pliable, or poorly vascularized yield poor results. Use of thin, vascularized fl aps, usually vestibular skin or muco­perichondrium, avoids such distortion.
Nasal lining defects are also predisposed to chronic infection. Infections related to a hole in the nasal lining often present weeks after the original reconstruction and are usually heralded by drain­age with erythema, edema, and warmth. With lining fl aps that are torn or not fully viable, blood supply to the overlying cartilage may be tenuous. Fulmi­nant infections may cause extensive lining necrosis with cartilage exposure and loss, but chronic smol­dering infections are more common and tend to be more localized. Empiric antibiotics and a culture and sensitivity are helpful in decreasing the risk of loss of free grafts, but resurfacing of exposed tissue may be needed. If the response to antibiotics is not brisk, the wound should be explored and debrided as necessary. A few months thereafter, subsequent graft placement may be considered.
Conclusion
The preponderance of complications in local fl aps can be mitigated or prevented with careful planning and meticulous technique. If the surgeon ensures that blood is delivered to the tissues, the tissues will live and the risk of infection and unfavorable heal­ing are dramatically reduced. Detailed knowledge of the relevant anatomy minimizes the risk of injury to adjacent structures and of distortion of mobile landmarks. Additional consideration of the nuances of aesthetic units and anticipation of late effects in wound healing helps ensure favorable healing.
Nasal Lining Defects and Smoldering Infections
One of the more common oversights in nasal re­construction is failure to adequately restore nasal lining. Because the nasal lining is diffi cult to visu­alize, inadequate reconstruction of this layer might seem to be a minor transgression. However, failure
References
1. Angel MF, Ramasastry SS, Swartz WM, et al. The
critical relationship between free radicals and degrees of ischemia: Evidence for tissue intolerance of marginal perfusion. Plast Reconstr Surg Feb 1988;81(2), 233–
239.
2. Cutting C. Critical closing and perfusion pressures in
fl ap survival. Ann Plast Surg Dec 1982;9(6), 524.
150 / Complications of Local Flaps: Prevention and Management
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3. Diaz DD, Freeman SB, Wilson JF, Parker GS. Hematoma-induced fl ap necrosis and free radical scavengers. Arch Otolaryngol Head Neck Surg May 1992;118(5), 516–518.
4. Forrest CR, Pang CY, Lindsay WK. Dose and time effects of nicotine treatment on the capillary blood fl ow and viability of random pattern skin fl aps in the rat. Br J Plast Surg May 1987;40(3), 295–299.
5. Gideroglu K, Yildirim S, Akan M, Akoz T. Immediate use of medicinal leeches to salvage venous congested reverse pedicled neurocutaneous fl aps. Scand J Plast Reconstr Surg Hand Surg 2003;37(5), 277–
282.
6. Jewett BS. Complications of local fl aps. In: Baker SR, ed. Local Flaps in Facial Reconstruction. 2nd ed. New York: Mosby; 2007, 691–722.
7. Kaufman AJ, Kiene KL, Moy RL. Role of tissue undermining in the trapdoor effect of transposition fl aps. J Dermatol Surg Oncol Feb 1993;19(2), 128–
132.
8. Kinsella JB, Rassekh CH, Wassmuth ZD, Hokanson JA, Calhoun KH. Smoking increases facial skin
fl ap complications. Ann Otol Rhinol Laryngol Feb 1999;108(2), 139–142.
9. Polk HC, Jr., Miles AA. Enhancement of bacterial infection by ferric iron: kinetics, mechanisms, and surgical signifi cance. Surgery Jul 1971;70(1), 71–77.
10. Salasche SJ. Acute surgical complications: cause, prevention, and treatment. J Am Acad Dermatol. Dec
11. Salasche SJ, Grabski WJ. Complications of fl aps. J Dermatol Surg Oncol Feb 1991;17(2), 132–140.
12. Sebben JE. Sterile technique and the prevention of wound infection in offi ce surgery—Part I. J Dermatol Surg Oncol Dec 1988;14(12), 1364–1371.
13. Sebben JE. Sterile technique and the prevention of wound infection in offi ce surgery—Part II. J Dermatol Surg Oncol Jan 1989;15(1), 38–48.
14. Utley DS, Koch RJ, Goode RL. The failing fl ap in facial plastic and reconstructive surgery: Role of the medicinal leech. Laryngoscope Aug 1998;108(8 Pt 1), 1129–1135.
15. Vural E, Key JM. Complications, salvage, and enhancement of local fl aps in facial reconstruction. Otolaryngol Clin North Am Aug 2001;34(4), 739–751.
Index
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Information in fi gures and tables is indicated by f and t.
A
Abbe fl ap, for lip/perioral defects, 85–86, 85f aberrant wound healing, 18–19 absorbable sutures, 30, 31f adhesives, tissue, 31–32, 138–139 advancement fl aps, 37, 37f, 38–43, 40f–43f
for cheek defects, 101 for eyelid defects, 110, 110f for lip/perioral defects, 81–82, 82f
for scalp, 125, 125f age, healing and, 10 ala, nasal, 71, 72f amides, 24, 24t anatomy
of cheek, 98, 98f
neural, 98–99, 99f, 100f
vascular, 98, 99f of eyelids, 105–108 of forehead and brow, 89–91, 89f–91f
neural, 91–93, 92f–93f
vascular, 91, 91f of lips, 79–80, 79f nasal, 59–61, 59f–61f periocular, 105–108 of scalp, 117–121, 118f–120f of skin, 1–11
neural, 2–3, 4f
vascular, 2, 3f
anesthesia/anesthetics
local, 24–25, 24t, 25t, 26t topical, 25 tumescent, 25–26
angular artery, 34f apocrine sweat gland, 2f, 4f arrector pili, 2f, 4f ascending pharyngeal artery, 34f
auricular composite grafts, 72–73 auriculotemporal nerve, 99 axial pattern fl aps, 5–6, 6f, 38, 39f
B
basal cell layer, histology of, 1 basement membrane, 1 benzocaine, 24t, 25t bilateral advancement fl ap, 41f
for lip/perioral defects, 82, 82f
for scalp, 125, 125f bilateral rotation fl ap, 46f bilobed fl ap, 49, 50f, 51
for nasal defects, 67, 67f, 68f
for nasal tip defects, 71 bipedicle vestibular skin advancement fl ap, for nose, 73,
74f brow, 95–96. see also forehead and brow Brown-Adson forceps, 21, 22f buccal nerve, 99 bupivacaine, 24t, 25t
C
camoufl age, scar, 139–140 canthal malposition, 113–114 canthal tendons, 106f, 107f canthi, 107 canthus defects, 111 capillary perfusion pressure, fl ap necrosis and, 40f cardiovascular disease, wound healing and, 10 cervicofacial rotation fl ap, 44, 45f
for cheek defects, 101, 102f
cheek
anatomy, 98, 98f anterior, 101–102, 102f central, 102–103
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cheek (Continued)
cervicofacial rotation fl ap for, 101, 102f choice of reconstructive technique for, 100–101 defect analysis in, 99–100 defect preparation in, 100 esthetic subunits of, 97, 97f grafts for, 101 inferior, 102–103 local fl ap alternatives for, 101 in men vs. women, 97 neural anatomy of, 98–99, 99f, 100f posterior, 101 superior, 103 tension lines in, 97–98 transposition fl aps for, 101
vascular supply, 98, 99f cheek advancement fl ap, 41f chloroprocaine, 24t, 25t clear margins, 145–146 closure techniques, 27–29, 28f, 29f cocaine, 25t columella defects, 71–72 common carotid artery, 34f comorbid disease, wound healing and, 9–11, 10f, 10t complications, of local fl aps
clear margins and, 145–146
dissection plane and, 143
fl ap design and, 145–149, 145f–148f
hemostasis and, 143–144
ischemia, 146–147, 146f–147f
mobile structure distortion, 148–149
nerve injury and, 144
overview of, 141
patient factors in, 141–142
scars, 147–148, 148f
structural elements and, respect for, 144
surgical technique and, 142–144
tissue handling and, 143
wound infection and, 142–143 conjunctivodacryocystorhinostomy, 112 connective tissue growth factor (CTGF), 9t continuous sutures, 28, 29f, 30f controlled tissue expansion, for scalp, 133–134 corrugator, 90f, 92, 106f CTGF. see connective tissue growth factor (CTGF) cutaneous tissue adhesives, 31–32, 138–139
D
debridement, healing and, 17 Dermabond, 31–32, 138–139 dermal regeneration templates, 134–135 dermatome, 55, 56, 56f dermis, histology of, 1–2, 2f design, fl ap, complications and, 145–149, 145f–148f diabetes, wound healing and, 9–10, 18 dorsal nasal fl ap, 69, 70f, 71f
dressings, 135–136 Dufourmental fl ap, 46f
E
ectropion, 113 EGF. see epidermal growth factor (EGF) endocrine sweat gland, 2f epidermal growth factor (EGF), 9t epidermis, histology of, 1, 2f epinephrine, 24 epithelial turn-in fl ap, for nasal defects, 77, 78f esters, 24, 24t esthetic units, of face, 26, 27f, 34–35, 35f etidocaine, 25t exposure keratitis, 113 external carotid artery, 33, 34, 34f eyelid and periocular area
advancement fl aps for, 110, 110f anatomic considerations, 105–108 canthal malposition with, 113–114 dry eye and, 112–113 ectropion with, 113 esthetic units in, 107–108 exposure keratitis with, 113 eyelid reconstruction, 108–112 lower eyelid marginal defects, 109–111, 109f,
110f mobile structure distortion in, 148–149 ocular issues with, 112–113 postoperative care, 112 prominent scarring in, 114–115 restrictive strabismus with, 113 revision surgery in, 113 skin types in, 107–108 upper eyelid defects, 111
eyelid malpositions, 113–115 eyelid retraction, 113
F
face, esthetic units of, 26, 27f, 34–35, 35f facial artery, 33–34, 34f, 98, 99f, 118f facial nerve, 92, 92f, 93, 93f, 99, 100f, 120, 121f FGFs. see fi broblast growth factors (FGFs) fi broblast growth factors (FGFs), at wound sites, 9t fl aps
advancement, 37, 37f, 38–43, 40f–43f
for cheek defects, 101 for lip/perioral defects, 81–82, 82f
for scalp, 125, 125f axial pattern, 5–6, 6f, 38, 39f bilobed, 49, 50f, 51
for nasal defects, 67, 67f, 68f
for nasal tip defects, 71 bipedicle vestibular skin advancement, 73, 74f classifi cation of, 33t design of, complications and, 145–149, 145f–148f
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Dufourmental, 46f facial esthetic units and, 34–35, 35f Gilles fan, 86, 86f Hughes transconjunctival, 111 infl ammatory phase and, 6–9, 7f, 8f, 9t injury response, 6, 7f island, 47, 48f, 49 Karpandzic, 84–85, 85f latissimus dorsi free, 132–133, 132f lip-switch, 85–86, 85f local, 36–38, 37f, 38f loss of, 146–147, 146f–147f melolabial, 45
for nasal sidewall defects, 68–69, 69f musculocutaneous, 38, 39f for nasal defects, 62 paramedian forehead, 48f, 63f
for nasal defects, 63–64, 63f, 65f, 66f proliferative phase and, 9, 10f random pattern, 3, 5, 5f, 38, 39f rhomboid, 44, 46f
Limberg, 114f
for temporal region, 96, 96f rotation, 37f, 43–44, 44f–46f
cervicofacial, 44, 45f
for cheek defects, 101, 102f for lip/perioral defects, 82–83 for scalp, 125–126, 126f–127f
septal composite chondromucosal pivotal, 76, 77f septal mucoperichondrial hinge, 73–76, 74f–75f superfi cial temporal artery-based, 126, 128, 129f
130f survival factors, 6 transposition, 38, 38f, 44–51, 47f–50f
for cheek defects, 101 for glabellar defects, 94–95 for lip/perioral defects, 83, 83f
for scalp, 128–129, 130f–131f tubed interpolation, 47, 48f vascular supply of, 33–34, 34f Webster, 46f Z-plasty, 49, 49f
forceps, 21, 22f forehead and brow
alternatives to local fl aps for, 94 anatomy of, 89–91, 89f–91f choice of reconstructive technique for, 94 defect analysis in, 93 defect preparation in, 93–94 glabella, 94–95, 95f importance of symmetry in, 95 in men vs. women, 89 neural anatomy of, 91–93, 92f–93f relaxed skin tension lines in, 89, 91f secondary intention healing in, 95 temporal region, 96, 96f
vascular supply, 91, 92f
forehead fl ap, paramedian, 48f, 63f
for nasal defects, 63–64, 63f, 65f, 66f, 76–77 frontalis, 90f, 91, 106f, 119f frontal nerve, 92
G
galeal relaxing incisions, 126f gender, forehead/brow anatomy and, 89 Gilles fan fl ap, 86, 86f glabella, 94–95, 95f gland(s)
apocrine sweat, 2f, 4f
exocrine sweat, 2f
lacrimal, 106f
sebaceous, 2f grafts
for cheek defects, 101
defi nition of, 53
donor sites for, 54, 56, 57f
dressings for, 135
for eyelid defects, 109–110
harvesting of, 54–56, 55f
healing of, 56–57, 57t
for nasal ala defects, 71, 72f
for nasal defects, 62
overview of, 53
placement of, 56, 56f
planning for, 53–54, 54t
postoperative care for, 57–58
preoperative analysis for, 53–54, 54t
recipient site for, 54
for scalp, 123–124, 124f great auricular nerve, 118f greater occipital nerve, 118f growth factors, at wound sites, 9t
H
hair
pilosebaceous units and, 3, 4f
transplants, 134 hairline, 89, 91 harvesting, graft, 54–56, 55f healing
aberrant, 18–19
age and, 10
cardiovascular disease and, 10
comorbid disease and, 9–11, 10f,
debridement and, 17
desiccation and, 17
diabetes and, 9–10, 18
factors affecting, 17–18, 17t
hemostasis in, 13, 16f
hypertrophic scars in, 18–19
infl ammatory phase, 6–9, 7f, 8f, 9t, 13–14, 14f
keloids and, 18–19
10t
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healing (Continued)
local factors affecting, 17–18, 17t malnutrition and, 18 maturation phase of, 15–17, 16f medications and, 18 moisture and, 17 phases of, 13–17 proliferative phase, 9, 10f, 14–15, 15f, 16f of skin grafts, 56–57, 57t smoking and, 10 systemic factors affecting, 18 tensile strength and, 17 timeline, 7f, 16f vitamins and, 18
hemostasis
complications and, 143–144
in wound healing, 13, 16f Henle’s layer, 4f histology, of skin, 1–2, 2f hooks, 22, 23f horizontal advancement fl ap, 40f
for lip/perioral defects, 83 horizontal mattress sutures, 28, 29f, 30f Hughes transconjunctival fl ap, 111 Huxley’s layer, 4f
I
IGF-1. see insulin-like growth factor 1 (IGF-1) incision planning, 26, 26f, 27f infection
complications and, 142–143, 149
smoldering, 149 inferior alveolar artery, 34, 34f inferior labial artery, 34f inferior turbinate fl ap, 76, 76f infl ammatory phase, of wound healing, 6–9, 7f,
8f, 9t, 13–14, 14f infraorbital artery, 34f infraorbital nerve, 98–99 infundibulum, 4f injury response, 6, 7f. see also healing instrumentation, 19f–21f, 21–24 insulin-like growth factor 1 (IGF-1), 9t interleukins, at wound sites, 9t internal carotid artery, 34f, 91, 117 interpolation fl ap, tubed, 47, 48f intraoperative tissue expansion, for scalp, 134 inverted Burrow’s triangle excision, 43f ischemia, as complication, 146–147, 146f–147f island fl ap, 47, 48f, 49 isthmus, 4f
K
Karpandzic fl ap, for lip/perioral defects, 84–85,
85f keloids, 18–19
keratitis, exposure, 113 knife handles, 21
L
lacrimal canaliculi, 108f lacrimal drainage system, 107, 108f, 111–112 lacrimal gland, 106f lateral canthus defects, 111 latissimus dorsi free fl ap, 132–133, 132f lesser occipital nerve, 118f levator aponeurosis, 106f levobupivacaine, 25t lidocaine, 24–25, 24t, 25t Limberg rhomboid fl ap, 114f lines, relaxed skin tension, 26, 26f, 27f
in cheek, 97–98 in forehead, 89, 91f
nose and, 35–36, 36f lingual artery, 34f lips
Abbe fl ap for, 85–86, 85f
advancement fl aps for, 81–82, 82f
anatomy of, 79–80, 79f
choice of reconstructive techniques for, 81
complications with, 87
defect considerations with, 81–87
facial analysis for, 79–80, 79f
Gilles fan fl ap for, 86, 86f
Karpandzic fl aps for, 84–85, 85f
mobile structure distortion and, 149
mucosal restoration for, 84
overview of, 79
postoperative care for, 87
preoperative considerations with, 80–81
rotational fl aps for, 82–83
total reconstruction, 86–87
transpositional fl aps for, 83, 83f lip-switch fl aps, 85–86, 85f local anesthesia, 24–25, 24t, 25t, 26t local fl aps, 36–38, 37f, 38f long-term scar care, 139
M
malnutrition, wound healing and, 18 mandibular nerve, 99 margins, clear, 145–146 mattress sutures, 28, 29f, 30f maturation phase, of wound healing, 15–17, 16f maxillary artery, 34, 34f medial canthus defects, 111 medications, wound healing and, 18 Meissner’s corpuscles, 3, 4f melanocyte, 2f melolabial fl ap, 45
for nasal sidewall defects, 68–69, 69f mental artery, 34f
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mepivacaine, 24t, 25t Merkel cell-nurite complex, 4f microsurgical tissue transfer, for scalp, 132–133, 132f middle meningeal artery, 34 mobile structure distortion, 148–149 mucosal restoration, for lip/perioral defects, 84 musculocutaneous fl aps, 38, 39f musculocutaneous perforators, 6f
N
needle holders, 22, 22f nerve injury, 144 neural anatomy
of cheek, 98–99, 99f, 100f of forehead and brow
neural, 91–93, 92f–93f of scalp, 118f, 120–121, 121f of skin, 2–3, 4f
nose
ala defects, 71, 72f anatomy of, 59–61, 59f–61f auricular composite grafts for, 72–73 bilobed fl ap for, 67, 67f, 68f bipedicle vestibular skin advancement fl ap,
73, 74f choice of reconstructive technique for, 62 columella defects, 71–72 defect analysis, 61, 61f defect preparation, 62 dorsal nasal fl ap for, 69, 70f, 71f dorsum reconstruction, 66 epithelial turn-in fl ap for, 77, 78f as esthetic unit, 35, 35f, 61, 61f inferior turbinate fl ap for, 76, 76f innervation of, 61 lining defects, 149 lining restoration, 72, 73t local fl ap alternatives for, 62 melolabial fl ap for, 68–69, 69f paramedian forehead fl ap for, 63–64, 63f, 65f, 66f septal composite chondromucosal pivotal fl ap for,
76, 77f septal mucoperichondrial hinge fl aps for, 73–76,
74f–75f sidewall defects, 67–69, 68f–71f skeleton of, 60–61, 61f subtotal dorsal defects, 66–67, 67f, 68f tip defects, 70–71 total nasal defects, 63–65, 63f vascular anatomy of, 59–60, 60f
O
occipital artery, 34, 34f, 119f occipital muscle, 119f ophthalmic artery, 91 orbicularis, 90f, 92, 105, 106f
–65f
orbicularis oris, 80 O-to-T closure, 42, 42f O-to-Y closure, 39, 41f
P
Pacinian corpuscles, 3, 4f paramedian forehead fl ap, 48f, 63f
for nasal defects, 63–64, 63f, 65f, 66f, 76–77
pattern fl aps
axial, 5–6, 6f, 38, 39f
random, 3, 5, 5f, 38, 39f PDGF. see platelet-derived growth factor (PDGF) pedicled interpolation fl ap, 47, 48f perioral. see lips permanent sutures, 30–31, 32f physiology, of skin, 1–11 pilosebaceous units, 3, 4f platelet-derived growth factor (PDGF), 9t postauricular artery, 119f posterior auricular artery, 34f postoperative care
dressings, 135–136
eyelid and periocular area, 112
grafts, 57–58
lips, 87
scalp, 135
tissue adhesives, 138–139 prickle cell layer, histology of, 1 prilocaine, 24t, 25t procaine, 24t, 25t procerus, 90f, 92, 106f proliferative phase, of wound healing, 9, 10f, 14–15,
15f, 16f
pulse dye laser (PDL), for keloids, 19
R
random pattern fl aps, 3, 5, 5f, 38, 39f relaxed skin tension lines (RSTLs), 26, 26f, 27f
in cheek, 97–98
in forehead, 89, 91f
nose and, 35–36, 36f remodeling, in wound healing, 15–17, 16 restrictive strabismus, 113 reticular dermis, 1 rhomboid fl ap, 44, 46f
Limberg, 114f
for temporal region, 96, 96f ropivacaine, 25t rotation fl ap, 37f, 43–44, 44f–46f
cervicofacial, 44, 45f
for cheek defects, 101, 102f for lip/perioral defects, 82–83 multiple, for scalp, 126, 127f–128f for scalp, 125–126, 126f–127f
RSTLs. see relaxed skin tension lines (RSTLs) running suture, 28, 29f, 30f
f