Figure 7. There is an inverse correlation between LPCO and LPTS for increased knee flexion and delayed tibiofemoral impingement. (a) Large LPCO and low and normal LPTS. No tibial impingement on posterior femur. (b) Small LPCO and large LPTS. No tibial impingement on posterior femur. (c) Small LPCO and normal LPTS. Fabella present. LPTS: Lateral posterior tibial slope; LPCO: Lateral posterior condylar offset.
