Table 1. Comparison of VA and JSW.
| Postoperative VA | P-value | |||
|---|---|---|---|---|
| ≥15°(n=10) | <15°(n=28) | |||
| Valgus angle (°) | 23.5 (15.5 to 37.0) | 5.0 (–3.5 to 11.7) | <0.001* | |
| Posterior tilt angle (°) | 4.6 (–2.9 to 11.0) | 4.4 (–15.4 to 17.5) | 0.948 | |
| LCEA (°) | 25.3 (8.2 to 36.9) | 23.2 (8.4 to 31.8) | 0.573 | |
| Alpha angle (°) | 60.1 (38.5 to 83.8) | 57.4 (33.9 to 96.7) | 0.378 | |
| Postoperative JSW (mm) | ||||
| Operated side | 5.66 (4.09 to 7.39) | 5.36 (3.18 to 7.44) | 0.482 | |
| Contralateral side | 5.12 (4.18 to 6.45) | 4.67 (2.78 to 6.86) | 0.272 | |
| Last JSW (mm) | ||||
| Operated side | 4.95 (3.10 to 6.54) | 5.06 (3.36 to 7.26) | 0.757 | |
| Contralateral side | 4.50 (3.21 to 6.04) | 4.60 (2.75 to 6.77) | 0.708 | |
| JSW narrowing (mm) | ||||
| Operated side | 0.71 (–0.21 to 1.86) | 0.30 (–0.68 to 1.78) | 0.040* | |
| Contralateral side | 0.62 (–0.02 to 2.25) | 0.07 (–0.60 to 1.08) | 0.003* | |
| JSW narrowing per year (mm) | ||||
| Operated side | 0.21 (–0.18 to 0.58) | 0.09 (–0.38 to 0.57) | 0.218 | |
| Contralateral side | 0.26 (–0.01 to 0.79) | 0.02 (–0.38 to 0.38) | 0.018* | |
Values are presented as mean (range).
VA: valgus angle, JSW: joint space width, LCEA: lateral center edge angle.
*P<0.05.