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Comparison of VAS score between the two groups
| Group | Cases | Preoperative | 4 h postoperative | 8 h postoperative | 12 h postoperative | 24 h postoperative |
|---|---|---|---|---|---|---|
| Combination | 57 | 1.7 ± 0.4 | 1.8 ± 0.9 | 2.4 ± 0.6a | 2.2 ± 0.9a | 2.1 ± 0.4a |
| Control | 57 | 1.8 ± 0.5 | 1.9 ± 0.7 | 3.0 ± 1.5 | 4.2 ± 1.1 | 5.4 ± 0.8 |
Note: at test, P < 0.05 compared with the control group
