METHODS: A total of 128 patients who had undergone LMT were divided into 0-1 year group,2-4 year group,5-10 year group and 11-17 year group according to the time after LMT; Healthy contralateral leg was assigned to control groups respectively.

• 方法选择术后患者128例,根据术后时间分为0~1a组,2~4a组,5~10a组和11~17a组,对照组为对应健侧;