Figure 2.
Lateral tibial slope is measured at the center of articulation on the lateral tibial plateau. The tibial proximal anatomic axis (dashed black line), defined by the midpoint method with 15 cm (Fig. 1A), is superimposed on the image. Lateral tibial slope is the angulation (θ) between a line fit to the subchondral bone line (white line) and a line perpendicular to the tibial proximal anatomic axis (black line).