Results 30 cases were interviewed and all are alive now except 2 cases of partially necrolysis, which appeared in the group with flap of greater Omentum and healed by necronectomy and replantation. 结果术后皮瓣部分坏死2例,均为大网膜瓣修补+中厚皮瓣植皮术治疗病例,经清创再植皮而痊愈。全部病例均获得随访。