Table 3.
Comparisons of clinical scores according to age and body mass indexa.
| Age |
BMI, kg/m2 |
|||||
|---|---|---|---|---|---|---|
| <60 (n = 86) | ≥60 (n = 42) | P | <25 (n = 77) | ≥25 (n = 51) | P | |
| VAS scoreb | ||||||
| Preoperative | 7.0 ± 1.6 | 7.2 ± 1.5 | 0.458 | 7.2 ± 1.6 | 7.0 ± 1.5 | 0.563 |
| 1-year follow-up | 2.5 ± 1.7 | 2.5 ± 1.7 | 0.944 | 2.5 ± 1.7 | 2.6 ± 1.6 | 0.393 |
| Final follow-up | 2.0 ± 2.1 | 1.9 ± 2.0 | 0.732 | 2.0 ± 2.2 | 2.0 ± 1.9 | 0.547 |
| WOMAC scoreb | ||||||
| Preoperative | 38.4 ± 12.4 | 41.2 ± 12.0 | 0.162 | 39.1 ± 12.7 | 39.6 ± 11.8 | 0.604 |
| 1-year follow-up | 17.0 ± 12.7 | 17.7 ± 12.9 | 0.648 | 17.6 ± 13.7 | 16.7 ± 11.2 | 0.872 |
| Final follow-up | 13.6 ± 13.9 | 14.4 ± 14.7 | 0.545 | 14.4 ± 15.4 | 13.1 ± 12.1 | 0.979 |
| IKDC scoreb | ||||||
| Preoperative | 33.9 ± 8.2 | 29.5 ± 7.7 | 0.005 | 32.4 ± 8.3 | 32.5 ± 8.2 | 0.808 |
| 1-year follow-up | 56.7 ± 14.4 | 53.8 ± 13.9 | 0.278 | 55.4 ± 14.5 | 56.4 ± 14.0 | 0.752 |
| Final follow-up | 62.3 ± 17.2 | 59.1 ± 17.2 | 0.344 | 61.6 ± 18.0 | 60.7 ± 16.0 | 0.644 |
a
Values are expressed as mean ± standard deviation unless otherwise indicated. Bold indicates statistical significance (P < 0.05). BMI, body mass index; IKDC, International Knee Documentation Committee; VAS, visual analog scale; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.
b
Mann-Whiney U test.