The patella, or knee cap as it is most commonly known, is a crucial part of the knee joint. We rely on our knees to perform a wide range of movements. However, if we lead very active lives or play a lot of sports, we put a lot of pressure on the joint. https://ccoeus.wordpress.com/2019/06/20/a-quick-guide-to-patellar-tracking-disorder-and-its-treatment/