Pairwise comparisons using the modified Harris Hip Score
| Variable | Follow-up periods | P values | |
| Modified Harris Hip Score | 80.4 (preoperative) | 95.0 (4 months after surgery) | <0.001 |
| 96.6 (final evaluation) | <0.001 | ||
| 95.0 (4 months) | 96.6 (final evaluation) | <0.001 | |
The p values were obtained using the Wilcoxon test.