Fig. 1.

Screenshot of a prosthetic preplanning based on a patient individual knee model from the CT scan. Left is the frontal, in the middle the axial and on the right the sagital CT view with the prosthesis displayed in green. Prosthetic alignment is based on the principle of kinematic alignment with symmetric 7.5 mm resection on the distal and dorsal femur. The tibia is aligned to the surface of the proximal jointline. The resulting component orientation is outputted in degrees to the mechanical axes