Figures & data
Figure 1. Three-dimensional preoperative planning on ORTHODOC.
Figure 2. The transepicondylar axis was determined by connecting the most prominent points of both the medial and lateral epicondyles in both the coronal plane (a) and the axial plane (b).
Figure 3. Virtual implantation of the femoral component. The implant size was selected according to the radius (shown as a circle) that was closest to the distance between the TEA (the center of the two orthogonal axes in this view) and the distal condyle border in the lateral condyle.
Figure 4. Flexion of component. When the antero-superior apex of the femoral component dug into the anterior cortex of the femur (a), the femoral component was flexed around the TEA to avoid creation of a notch (b).
Figure 5. Extension of component. When a gap occurred between the apex and the anterior cortex (a), the implant was rotated into extension until contact was obtained between the anterior cortex and the matching surface of the prosthesis (b).
