Development and validation of a prediction model for knee joint line orientation after high tibial osteotomy

Table 2 Comparative results of radiographic parameters before and after HTO

Parameter	Pre-HTO		Post-HTO		Mean difference (range)	P-value
Parameter	Mean	95% CI	Mean	95% CI	Mean difference (range)	P-value
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

ISSN: 1471-2474