Fig. 2
From: Evaluation of factors affecting external tibial torsion in patients with cerebral palsy
Axial three-dimensional computed tomography scans (A) Femoral anteversion is the angle between the line connecting the centers of the femoral head and greater trochanter and another line connecting the posterior margins of the medial and lateral femoral condyles. (B) Tibial torsion is the angle between the line connecting the posterior margins of the medial and lateral tibial condyles and another line connecting the midpoints of the medial malleolus and syndesmotic articular surface of the lateral malleolus