表 4.
Comparison of Harris scores of ankle joints between the two groups before and after operation (
)
两组患者手术前后踝关节 Harris 评分比较（
）
| 组别
Group |
例数
n |
术前
Preoperative |
术后 3 d
Three days after operation |
术后 3 个月
Three months after operation |
术后 6 个月
Six months after operation |
术后 12 个月
Twelve months after operation |
| 试验组
Trial group |
33 | 36.45±1.32 | 43.88±2.32 | 80.56±2.44 | 80.86±1.45 | 81.37±2.55 |
| 对照组
Control group |
45 | 37.78±1.59 | 41.65±3.12 | 80.36±2.94 | 80.44±1.67 | 81.61±3.77 |
| 统计值
Statistic |
t=−2.442
P=0.367 |
t=3.479
P=0.000 |
t=1.429
P=0.348 |
t=1.551
P=0.279 |
t=1.378
P=0.329 |