| Preoperative (I) | 3 Months (II) | 12 Months (III) | 24 Months (IV) | FR-Test | WI-Test | |
|---|---|---|---|---|---|---|
| HSS score (100) | 55.5 SD 11.5 | 77.2 SD 10.3 | 85.6 SD 8.9 | 85.7 SD 11.7 | p<0.001 | I vs II p<0.001 I vs III p<0.001 I vs IV p<0.001 II vs III p<0.001 II vs IV p<0.001 III vs IV p=0.387 |
| Pain (30) | 10.1 SD 6.6 | 22.9 SD 5.8 | 26.3 SD 5.1 | 26.6 SD 5.9 | p<0.001 | I vs II p<0.001 I vs III p<0.001 I vs IV p<0.001 II vs III p<0.001 II vs IV p<0.001 III vs IV p=0.355 |
| Function (22) | 12.6 SD 4.3 | 16.9 SD 3.5 | 18.6 SD 4.0 | 18.9 SD 3.3 | p<0.001 | I vs II p<0.001 I vs III p<0.001 I vs IV p<0.001 II vs III p<0.001 II vs IV p<0.001 III vs IV p=0.761 |
| Motion (18) | 13.6 SD 1.9 | 12.9 SD 1.7 | 14.0 SD 1.9 | 13.8 SD 2.7 | p<0.001 | I vs II p=0.013 I vs III p=0.087 I vs IV p=0.066 II vs III p<0.001 II vs IV p<0.001 III vs IV p=0.971 |
| Muscular strength (10) | 7.6 SD 2.6 | 8.7 SD 2.1 | 9.5 SD 1.3 | 9.6 SD 1.0 | p<0.001 | I vs II p<0.001 I vs III p<0.001 I vs IV p<0.001 II vs III p<0.001 II vs IV p=0.002 III vs IV p=0.423 |
| Deformity (10) | 7.1 SD 2.8 | 9.0 SD 2.0 | 9.8 SD 0.5 | 9.8 SD 0.8 | p<0.001 | I vs II p<0.001 I vs III p<0.001 I vs IV p<0.001 II vs III p<0.001 II vs IV p=0.002 III vs IV p=0.967 |
| Instability (10) | 8.1 SD 1.5 | 9.7 SD 0.7 | 9.6 SD 0.9 | 9.6 SD 0.9 | p<0.001 | I vs II p<0.001 I vs III p<0.001 I vs IV p<0.001 II vs III p<0.001 II vs IV p=0.050 III vs IV p=0.740 |
| WOMAC score (100) | 48.1 SD 16.6 | 63.9 SD 18.5 | 74.1 SD 17.4 | 71.5 SD20.0 | p<0.001 | I vs II p<0.001 I vs III p<0.001 I vs IV p<0.001 II vs III p<0.001 II vs IV p<0.001 III vs IV p=0.961 |
| SF-36 score (100) | 49.1 SD 17.6 | 56.2 SD 21.3 | 63.9 SD 19.2 | 62.3 SD 22.6 | p=0.001 | I vs II p=0.004 I vs III p<0.001 I vs IV p<0.001 II vs III p=0.007 II vs IV p=0.010 III vs IV p=0.786 |
| ROM | 108.8° SD 15.7° | 103.3° SD 13.3° | 112.3° SD 15.1° | 112.6° SD 15.0° | p<0.001 | I vs II p=0.013 I vs III p=0.087 I vs IV p=0.022 II vs III p<0.001 II vs IV p<0.001 III vs IV p=0.792 |