Osteochondral lesions (OCLs ... Repeat imaging showed the presence/development of a repeat lateral talar dome chondral lesion for which he underwent arthroscopic curettage/osteoplasty and further to ...

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 ...