The Use of Free Anterolateral Thigh Flap for Reconstructing Soft Tissue Defects of the Lower Extremities

Abstract

The goal of soft tissue reconstruction in the lower extremities is to provide a functional and cosmetically acceptable limb. The anterolateral thigh flap has become one of the most popular options for soft tissue defect reconstruction recently because of the large amount of skin available and the reliable and versatile nature of this material. The purpose of this article is to present our experiences with the free anterolateral thigh flap for the reconstruction of soft tissue defects of the lower extremity. From April 2002 to October 2003, 31 consecutive free anterolateral thigh flaps were used. There were 24 male and 7 female patients, and their ages were between 3 and 78 years. The size of the flaps ranged from 11 to 34 cm long and 6 to 16 cm wide. In 9 patients, the flaps were harvested in a flow-through manner to both reconstruct soft tissue defects and protect and maintain the vascular status of the lower extremities. In these patients, the pedicle was interposed between vascular gaps, either present or created, in the extremity. The patency of distal anastomosis with the course of the distal vessel was confirmed by using conventional Doppler flow monitoring in flow-through flaps. In 4 cases, thinning of the flap was performed. In 3 patients, flaps were used in a neurosensorial fashion. Four flaps required reoperation due to vascular compromises. While 3 of these were salvaged, 1 flap was lost due to recipient arterial problems. Sixteen cases underwent split-thickness skin grafting of the donor site. No infection or hematomas were observed. We conclude that the anterolateral thigh flap is an ideal and versatile material, especially for lower extremity reconstructions, with its functional and cosmetic advantages, and it can be considered a suitable alternative to the most commonly used conventional soft tissue flaps.