Complications included of deep infection in 2 cases, nerve injury in 3 cases dee p venous thrombosis in 2 cases, heterotopic ossification occurred in 4 cases br ooker grade 1-2 and 2 case grade 3, avascular necrosis of the femoral head in 3 cases.

• 深部感染2例,坐骨神经损伤3例,深静脉血栓形成2例,异位骨化6例,中、重度骨关节炎3例,轻度8例,骨股头坏死3例。