表 1.

Comparison of AOFAS ankle-hindfoot scores before and after operation between the two groups (n=29, )

两组患者手术前后 AOFAS 踝-后足评分比较（n=29， ）

组别 Group	术前 Preoperative	术后 3 个月 Postoperative at 3 months	术后 12 个月 Postoperative at 12 months	统计值 Statistic
试验组 Trial group	99.1±1.0	99.2±0.9	99.4±0.9	F=0.580 P=0.567
对照组 Control group	99.1±1.1	98.9±0.6	99.0±0.9	F=0.506 P=0.608
统计值 Statistic	t=0.126 P=0.900	t=1.685 P=0.098	t=1.706 P=0.094