Table 3 Compare KPS score in two groups after treatment (\(\overline{x}\) ± s)
Groups | Cases | Before surgery | 1Â month after surgery |
|---|---|---|---|
Combined treatment | 31 | 65.3 ± 4.6 | 87.6 ± 3.9 |
PVP only treatment | 31 | 67.7 ± 5.9 | 77.9 ± 4.6 |
P |  |  > 0.05 |  < 0.05 |