Table 2.
Comparative results of radiographic parameters before and after HTO
| Parameter | Pre-HTO | Post-HTO | Mean difference (range) | P-value | ||
|---|---|---|---|---|---|---|
| Mean | 95% CI | Mean | 95% CI | |||
| MTFA | −7.7° | −9.8° to − 5.6° | 2.4° | 0° to 4.8° | 10.2° (9.2° to 11.2°) | < 0.001 |
| Tibia plateau inclination | −5.8° | −7.8° to −3.8° | 3.3° | 0° to 6.6 ° | 9.0° (8.1° to 10°) | < 0.001 |
| G-KJLO | −0.8° | −3.2° to 1.6° | 2.9° | 0.3° to 5.5 ° | 3.8° (3.2° to 4.4°) | < 0.001 |
| G-AJLO | 8.3° | 5° to 11.6° | 1.5° | −2.2° to 5.2° | 6.8° (6° to 7.6°) | < 0.001 |
CI Confidence interval, MTFA Mechanical tibiofemoral angle, HTO High tibial osteotomy, G-KJLO Knee joint line orientation relative to the ground, G-AJLO Ankle joint line orientation relative to the ground