This is certainly an autoimmune situation that may have an effect on almost any joint in Your entire body, which include your knees. A kneecap dislocates when the triangular bone (patella) that covers the entrance of the knee slips out of position, often to the outside of one's knee. At https://www.theorthopaedicandpainpractice.com/heres-why-you-shouldnt-wait-to-see-a-doctor-for-your-pain/