Reconstruction of the Distal Leg and Foot Using Free Anterolateral Thigh Flaps in Patients With High-Voltage Electrical Burns.

In a patient with a high-voltage electrical burns, the extent of burning is greatest at the entrance and exit points of the electric current. As the exit point is usually the ankle and/or foot, these areas may be the most severely damaged. As local tissue is limited in this region, free tissue transfer is usually required for reconstruction. Eleven anterolateral thigh free flaps were placed for the reconstruction of foot and ankle defects caused by electrical burns. When the defects were large, we placed the flaps with two or three perforators. In six patients, recipient vessels were prepared in the trauma region or immediately adjacent thereto. Reconstructions were performed at an average of 23.18 days after the burns, and the average hospitalization time was 42.27 days. Patients with burns on the dorsum of the foot often required toe amputations. In patients who underwent direct reconstruction (without debridement), re-operations were required because of graft loss in other burnt areas. The foot and ankle are the regions most damaged by electrical burns. Vessels in the trauma zone or immediately proximal thereto can serve as recipient vessels. Even when the defect is sizeable, a large anterolateral thigh flap with multiple perforators can be harvested. No vascular problem was encountered during early or late reconstruction. The free flap is very reliable when used to reconstruct foot tissue defects caused by electrical burns.

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