Fig. 1

Magnetic resonance images depicting the method used to obtain the femoral measurements in the axial plane. a The intercondylar height (line B) was the distance from the top of the intercondylar notch to the bicondylar line (line A). The intercondylar width (line C) was obtained at the anterior third of the intercondylar height (line B). b At the same level, the width of the lateral and medial condyles (line D, E) was obtained. The same method was used to collect these measurements in the coronal plane (c and d)