Modified Bilateral Advancement Flap: The Slide-in Flap

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Abstract

The bilateral V-Y advancement flaps are used commonly in the closure of circular skin defects. We modified the standard bilateral V-Y advancement flap technique to reduce the tension along the closure, and used it in 10 patients between 1995 and 1997. In the presence of a circular defect, bilateral V-Y advancement flaps were marked on the skin, with the height of the V flaps measuring 1.5 to 2 times the diameter of the defect. The limbs of the V were not drawn as straight lines, but were curved outward slightly, making the flap and its two extensions broader than the standard V-Y flap. The broad extensions of the V flaps encircled the defect from above and below. Skin incisions were made vertically down to the muscle fascia. Additional undermining was carried out to elevate the upper and lower extensions of the V flaps for a distance that equaled the radius of the defect. The upper and lower extensions of the V flap on one side were transposed into the defect and sutured to the concave base of the opposing flap V flap at its midpoint. These extensions were then sutured to each other. The extensions of the opposing V flap were then transposed into the defect; the upper being superior and the lower being inferior to the extensions of the first flap. The rest of the operation was completed by advancement of the V flaps and closure in a Y configuration. The efficient redistribution of available tissue by the combined use of transposition and advancement principles resulted in the repair of relatively large skin defects with reduced tension along the closure. Satisfactory results were obtained in all patients in this series without any surgical complication.

Akan iM, Ulusoy MG, Bilen BT, Kapucu MR. Modified bilateral advancement flap: the slide-in flap. Ann Plast Surg 1999;42:545–548

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