Fig. 2
Parameters measured on the lateral knee radiograph. A PTSPM referred to the D-value of 90° subtracting the included angle subtended by the posterior margin extension line of the tibial shaft and the medial tibial plateau joint line. PTSAA was defined as the D-value of 90° subtracting the angle between the lateral tibial anatomical axis and the medial tibial plateau joint line. B MWPPT%XR was the ratio of the torn range of the medial tibial plateau cartilage (TRMTPC) in relation to the AP width of medial tibial plateau (APWMTP). C Upon drawing a perpendicular line through the most posterior contour of the medial femoral condyle towards the medial tibial plateau joint line, we defined STFS as the distance between the perpendicular line and the most posterior edge of the medial tibial plateau