表 4.
Comparison of the knee range of motion at pre- and post-operation between 2 groups (
, °, n=30)
两组手术前后膝关节活动度比较（
，°，n=30）
| 组别
Group |
术前
Preoperative |
术后24 h
Twenty-four hours after operation |
术后48 h
Forty-eight hours after operation |
术后72 h
Seventy-two hours after operation |
出院当天
Discharge |
| A | 88.83±15.13 | 82.50±11.43 | 92.50± 9.54 | 103.17± 9.05 | 108.17±9.51 |
| B | 91.33±16.40 | 76.17±11.57 | 87.17±10.06 | 95.67±10.40 | 101.50±8.00 |
| 统计值
Statistic |
t=–0.614
P= 0.542 |
t=2.133
P=0.037 |
t=2.107
P=0.039 |
t=2.980
P=0.004 |
t=2.937
P=0.005 |