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Table 2 Comparative results of radiographic parameters before and after HTO

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

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
  1. 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