As Beede explains, the trochlea is “a groove in the lower end of the femur that guides the kneecap during knee movements.” When it’s damaged, it can cause pain, instability and additional ...

With a good look at these images, one gets a sense of how far lateral the patella is in extension and how far the patella must go to engage the femoral trochlea by 20° knee flexion. One can ...

In anterior cruciate ligament reconstruction (ACLR) and uninjured contralateral knees, the patella articulates higher on the femoral trochlea due primarily to a longer patellar tendon compared with ...