Fig. 2

A and B show the transverse sections passing through the largest femoral condyle. A illustrates the sulcus angle (SA). Two lines from the medial and lateral condyles to the deepest point of the intercondylar sulcus formed the SA. B illustrates the femoral trochlear depth (FTD). The distance from the deepest point of the femoral trochlear groove to the line connecting the most anterior points on the medial and lateral femur condyles is the FTD. C shows the transverse section passing through the midsection of the patella. The distance between the lateral and media of the patella is the patellar width (PW)