Figure 4From: Tibiofemoral and patellofemoral joint 3D-kinematics in patients with posterior cruciate ligament deficiency compared to healthy volunteers Tibiofemoral translation and rotation at 0°, 30° and 90° knee flexion in healthy knees (a) without and (b) with flexing muscle activity, and in PCL-deficient knees (c) without and (d) with flexing muscle activity (femoral line represents the transepicondylar axis). Back to article page