Table 2 Mean clinical outcome parameters
| Â | Preoperative | 6Â months | 1Â year | 2Â years | 3Â years | 5Â years |
|---|---|---|---|---|---|---|
Mean HHS (± SD) | 58.9 (12.0) | 94.3 (9.1) | 95.2 (10.5) | 96.1 (8.7) | 97.4 (7.7) | 98.1 (6.1) |
Wilcoxon (P value) |  | < 0.001 | 0.074 | 0.121 | 0.015 | 0.482 |
Mean OHS (± SD) | 38.5 (6.0) | 20.0 (9.4) | 18.7 (8.1) | 17.4 (7.7) | 16.0 (7.1) | 16.2 (6.4) |
Wilcoxon (P value) |  | < 0.001 | 0.028 | 0.072 | 0.012 | 0.081 |
Mean WOMAC (± SD) | 48.2 (13.7) | 13.0 (14.5) | 10.8 (13.7) | 9.7 (13.4) | 9.0 (13.7) | 6.9 (9.9) |
Wilcoxon (P value) |  | < 0.001 | 0.019 | 0.673 | 0.181 | 0.125 |