Table 2 Radiological parameters, instability, and ROM
| Â | HTO | TCVO | ||
|---|---|---|---|---|
Pre-op | Post-op | Pre-op | Post-op | |
K/L grade | ||||
 (II/III/IV) | 17/12/1 |  | 1/14/4a |  |
%MA (%) | 21.6 ± 11.0 | 64.7 ± 8.3b | 10.8 ± 10.5d | 59.8 ± 5.3b |
FTA (°) | 180.3 ± 3.5 | 169.1 ± 2.7b | 183.7 ± 3.2d | 170.9 ± 2.6b,e |
HKA(°) | -6.3 ± 2.2 | 4.2 ± 2.2b | -9.0 ± 3.0d | 3.5 ± 1.9b |
Varus stress angle (°) | 5.2 ± 0.9 | 6.6 ± 2.0 | 7.5 ± 1.4d | 4.5 ± 1.8b,e |
Valgus stress angle (°) | 2.1 ± 2.1 | 0.9 ± 1.9 | 3.4 ± 2.3 | 1.2 ± 1.3b |
Laxity angle (°) | 7.0 ± 2.2 | 7.5 ± 3.1 | 10.9 ± 2.6d | 5.6 ± 2.1b |
JLCA (°) | 1.4 ± 1.5 | 1.0 ± 0.9 | 4.9 ± 1.3d | 0.8 ± 1.0c |
ROM (°) | ||||
 Flexion | 134.1 ± 10.2 | 137.6 ± 7.7 | 125.6 ± 13.0d | 126.8 ± 10.3e |
 Extension | -2.0 ± 5.1 | -1.4 ± 3.5 | -3.8 ± 3.9 | -4.1 ± 3.6e |