Table 2 VAS score comparisons for the pain of different surgical methods (\(\overline{x}\) ± s)
Groups | Cases | Before surgery | After surgery | ||||
|---|---|---|---|---|---|---|---|
Day 1 | 1 month | 3 months | 6 months | 12 months | |||
Combination therapy group | 31 | 8.7 ± 0.34 | 3.0 ± 0.41 | 2.5 ± 0.23 | 2.44 ± 0.26 | 2.38 ± 0.42 | 2.14 ± 0.31*△ |
PVP group | 31 | 8.7 ± 0.33 | 3.1 ± 0.36 | 3.1 ± 0.28 | 4.53 ± 0.22 | 5.68 ± 0.49 | 5.72 ± 0.52△ |