| C group | D group | P value |
---|---|---|---|
Before surgery | 32.64 ± 9.11 | 46.32 ± 9.88 | <0.001 |
3 months postoperatively | 71.71 ± 4.78 | 63.02 ± 6.17 | <0.001 |
6 months postoperatively | 81.96 ± 4.94 | 78.35 ± 3.56 | <0.001 |
1 year postoperatively | 89.82 ± 3.33 | 85.20 ± 3.80 | <0.001 |