[Treatment of non-traumatic avascular talar necrosis by transposition of vascularized cuneiform bone flap plus iliac cancellous bone grafting].

：Objective To evaluatethe outcome of cancellous bone grafting plus iliac cancellous bone in the treatment ofnon-traumatic avascular talar necrosis.Methods Twenty patients,14 males and sixfemales,eight at stage Ⅱ,ten at stage Ⅲ and three at stage Ⅳ according to the modified Ficat & Arlet necrosisclassification system,were treated with vascularized bone flap from January 2000 to June2005.Results All patients were followed up for a mean of 37 months(range:14 to 68months).The clinical function outcome evaluated by Kenwright criteria were excellent in 8cases,good in 10 cases,fair in 1 case and poor in 1 case.Clinical symptom Was completelyor partially relieved.The necrotic area was fiIled with newly formed bone and theexcellent-to-good rate was 90%.Conclusion Transposition of vascularized cuneiform boneflap plus iliac cancellous bone grafting may be an ideal therapeutic method fornon-traumatic avascular talar necrosis.And the clinical outcome is satisfactory. Key words: Osteonecrosis; Talus; Transplantation,autologous