Fig. 2From: Relationship between lower limb torsion and coronal morphologies of the femur and tibia in patients with medial knee osteoarthritisa The proximal femoral torsional axis was assessed by superimposing two axial planes of the center of the femoral head and the central axis of the femoral neck. b. Measurement of femoral torsion. Femoral torsion was defined as the angle between the proximal and distal femoral torsional axes. c. Measurement of tibial torsion. Tibial torsion was defined as the angle between the proximal and distal tibial torsional axesBack to article page