Current concepts in microsurgical soft tissue reconstruction of lower extremity trauma in a single-vessel extremity

Advancements in microsurgical techniques have allowed for the salvage of extremities that would otherwise be amputated.Despite these improvements,mangling injuries of the lower extremity with concomitant open fracture continue to present a challenge for reconstructive surgeons.These injuries are further complicated by circumstances in which a single vessel is perfusing the foot after trauma(Gustilo 3C injuries).Although the foot may remain perfused in this instance,free flap coverage of open fractures with concomitant vascular injury requires careful planning to maintain a viable foot.The surgeon must adapt surgical plans based on both preoperative and intraoperative findings.In this review,we discuss current concepts and reconstructive techniques for performing free flap reconstruction in single-vessel lower extremities.