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Comparison of Harris score between the two groups (x ± sd, point)
| Groups | N | Before treatment | After treatment | t | P |
|---|---|---|---|---|---|
| Control group | 43 | 55.83±11.34 | 83.32±14.63 | 9.739 | <0.001 |
| Observation group | 43 | 56.35±11.66 | 92.35±7.22 | 17.212 | <0.001 |
| t | 0.230 | 3.629 | |||
| P | 0.834 | <0.001 |
