Table 4.
Comparisons of clinical scores according to the number of lesionsa.
| Single lesion (n = 67) | Two lesions (n = 49) | Three lesions (n = 12) | P | |
|---|---|---|---|---|
| VAS scoreb | ||||
| Preoperative | 6.8 ± 1.6 | 7.3 ± 1.5 | 7.6 ± 1.7 | 0.151 |
| 1-year follow-up | 2.4 ± 1.8 | 2.6 ± 1.5 | 3.0 ± 2.0 | 0.508 |
| Final follow-up | 1.9 ± 2.1 | 2.1 ± 2.0 | 2.4 ± 2.0 | 0.428 |
| WOMAC scoreb | ||||
| Preoperative | 40.2 ± 13.4 | 38.6 ± 10.3 | 37.3 ± 13.8 | 0.848 |
| 1-year follow-up | 18.6 ± 14.8 | 15.0 ± 8.6 | 18.6 ± 13.8 | 0.723 |
| Final follow-up | 14.6 ± 16.0 | 12.6 ± 11.2 | 15.1 ± 13.9 | 0.957 |
| IKDC scoreb | ||||
| Preoperative | 33.7 ± 8.7 | 31.1 ± 7.6 | 31.3 ± 8.0 | 0.295 |
| 1-year follow-up | 55.2 ± 15.0 | 56.7 ± 12.3 | 55.3 ± 18.2 | 0.915 |
| Final follow-up | 62.0 ± 18.1 | 60.5 ± 2.2 | 59.6 ± 5.4 | 0.695 |
a
Values are expressed as mean ± standard deviation unless otherwise indicated. Bold indicates statistical significance (P < 0.05). IKDC, International Knee Documentation Committee; VAS, visual analog scale; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.
b
Kruskal-Wallis test.