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两组患者术后不同时点VAS评分比较
The VAS score of two groups postoperatively
| Group | n | Postoperative 2 h | Postoperative 24 h | Postoperative 48 h |
| VAS: visual analogue scale. Compared with group G, aP=0.013, bP=0.025. | ||||
| G | 20 | 4.0±1.7 | 2.1±0.5 | 1.0±0.6 |
| GP | 20 | 0.8±0.7a | 0.6±0.4b | 0.7±0.4 |
