Fig. 1

CT Standardization - 3D MPR. (a) Position the blue line parallel to humeral diaphysis in sagittal view and parallel to the transepicondylar axis in axial view. Locate the yellow line parallel to the trochlear axis in coronal view. Place the pink line passing through the deepest point of the trochlea in axial and coronal view. (b) Position the intersection between the blue line and the yellow one in the center of the humeral trochlea in sagittal view