Fig. 2From: Tibial torsion analysis in computed tomography: development and validation of a real 3D measurement technique2D measurement methods (a) proximal determination for both techniques (angle between red lines), (b) distal determination for technique 1, (c) distal determination for technique 2.—2D tibial torsion measures are calculated by the sum of angle between red lines in a plus angle between red lines in b for technique 1 and in c for technique 2Back to article page