Examination may disclose the patella still lying lateral to the joint ... the medial border of the patella reflecting the retinacular tear. It is important to realise that the anatomy was normal ...

The images were reviewed with specific reference to the medial collateral ligament (MCL), a heretofore undescribed concomitant injury. Eighty patients were diagnosed on MRI as having had transient ...

and one on the outside (lateral) of the knee. These parts work together to prevent the kneecap from shifting out of its proper position. So, the tear in the medial retinaculum forced Porzingis ...