| 分组 | ROM(°) | |||
| 术后第2天 | 术后第4天 | 术后1周 | 术后1月 | |
| A | 64.8 ± 18.8 | 91.8 ± 12.6 | 98.7 ± 9.2 | 106.7 ± 6.7 |
| B | 67.7 ± 19.9 | 97.6 ± 10.8 | 100.1 ± 6.5 | 110.1 ± 8.1 |
| 统计值 | 1122.50 | 975.000 | 1158.500 | 953.000 |
| P | 0.423 | 0.000* | 0.000* | 0.000* |