A Case of Avoiding Thigh Amputation Through Sural Bypass Surgery

Abstract

The patient suffered from necrosis in the lower right leg due to ischemia. Preoperative angiography revealed occlusion from the superficial femoral artery to the tibio-peroneal trunk. The sural artery remained patent as a collateral pathway. The crural arteries were close to the necrotic area and not suitable for distal anastomosis. Therefore, a femoro–sural bypass was performed using an autogenous vein. Following the bypass surgery, satisfactory blood flow recovery in the lower leg was confirmed. Subsequently, a below-knee amputation was carried out. The postoperative course was favorable, and the patient regained walking function with a prosthetic leg six months later.