Fig. 1.

The overall anatomical alignment in the coronal plane was defined as the angle between the femoral anatomical axis and the tibial anatomical axis. The tibial alignment was defined as the angle between the proximal portion of the tibial component and the tibial anatomical axis. The femoral alignment was defined as the angle between the distal portion of the femoral component and the femoral anatomical axis (α = coronal femoral angle, and β = coronal tibial angle)