eMedicine Specialties > Otolaryngology and Facial Plastic Surgery > Reconstructive Surgery
Advancement Flaps
Updated: Oct 17, 2008
Introduction
Skin defects created by trauma or excision of benign or malignant lesions may be repaired by numerous methods. Techniques include healing by secondary intention, full or partial-thickness skin grafts, or local skin flaps (ie, rotation, advancement flaps).
More substantial defects, or those that also involve soft tissue, bone, and nerve, are usually repaired with axial pattern flaps, regional flaps, or revascularized free flaps.
Many variables determine the type of repair chosen. Variables include defect size, functional deficit, anatomic location, donor site morbidity, likelihood of infection (particularly in human and animal bites), need for tumor surveillance, overall patient health, and surgeon experience and preference.
Advancement flaps are used when the patient is in overall good health and the defect is free of tumor and obvious infection. Flaps should match thickness, color, and texture of excised skin. Resultant scars should fall in relaxed skin-tension lines.
History of the Procedure
Celsus, of ancient Rome, is the first person credited with using advancement flaps to close skin defects. In the early 1800s, French surgeons described and advocated advancement flaps under the term "lambeau par glissement" (sliding flaps).
Today, advancement flaps are widely used to close skin defects of the face, scalp, and neck.
Indications
Advancement flaps are indicated when the skin defect lies next to an area of skin laxity, and prospects for a favorable resultant scar appear strong.
Favorable scars respect anatomical subunits of the face and lie in relaxed skin-tension lines. Advancement flaps are typically used in forehead, scalp, eyelid, and upper lip areas.
Relevant Anatomy
Any viable flap must have an adequate blood supply. Blood flow of 1-2 mL/min/100 g of tissue is adequate. Circulation to the skin starts with large, named, segmental vessels branching from the aorta. Segmental vessels branch to give rise to perforating arteries that run through overlying muscles. Perforating arteries arrive at the skin either by direct cutaneous arteries (the basis for axial pattern flaps) or by anastomosis with the subdermal or dermal plexus.
Advancement flaps are based on a random pattern blood supply, which comes from the anastomoses within the subdermal or dermal plexus. The perfusion pressure of feeding vessels and intravascular resistance determines the viable length of an advancement flap. These flaps in the head and neck region may achieve a length-to-width ratio of 4:1. The sympathetic nervous system, with control over arteriovenous (A-V) shunts in the subdermal plexus, regulates arterial resistance. Local skin flap failure may be due to preferential blood flow through A-V shunts.
Contraindications
Advancement flaps are contraindicated by poor patient health (eg, uncontrolled diabetes, extensive smoking history, bleeding disorder), concurrent wound infection, or the need for postoperative tumor surveillance. Other forms of reconstruction may be more favorable because of better cosmesis.
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References
Andrades PR, Calderon W, Leniz P, et al. Geometric analysis of the V-Y advancement flap and its clinical applications. Plast Reconstr Surg. May 2005;115(6):1582-90. [Medline].
Baker SR. Reconstruction of facial defects. In: Otolaryngology: and Head and Neck Surgery. 1998:527-559.
Calhoun KH, Seikaly H, Quinn FB. Teaching paradigm for decision making in facial skin defect reconstructions. Arch Otolaryngol Head Neck Surg. Jan 1998;124(1):60-6. [Medline].
Connor CD, Fosko SW. Anatomy and Physiology of Local Skin Flaps. Facial Plast Surg Clin North Am. Nov 1996;4:447-454.
Fisher J. Basic principles of skin flaps. In: Essentials of Plastic, Maxillofacial and Reconstructive Surgery. Lippincott Williams & Wilkins; 1987:37-50.
Murakami CS, Nishioka GJ. Essential Concepts in the Design of Local Skin Flaps. Facial Plast Surg Clin North Am. Nov 1996;4:455-468.
Onishi K, Maruyama Y, Hayashi A, et al. Repair of scalp defect using a superficial temporal fascia pedicle VY advancement scalp flap. Br J Plast Surg. Jul 2005;58(5):676-80. [Medline].
Sabit I, Schaefer SD, Couldwell WT. Extradural extranasal combined transmaxillary transsphenoidal approach to the cavernous sinus: a minimally invasive microsurgical model. Laryngoscope. Feb 2000;110(2 Pt 1):286-91. [Medline].
Shumrick KA. Local skin flaps: anatomy, physiology, and general types. In: Head and Neck Surgery - Otolaryngology. Lippincott Williams & Wilkins; 1993:1913-1948.
Further Reading
Keywords
advancement flaps, skin flaps, skin flap, vy advancement flaps, local skin flap, rotation flap, skin defects, monopedicled flap, bipedicled flap, V-Y flap, delay phenomenon, random flap
Overview: Advancement Flaps