Subluxation is another word for partial dislocation of a bone. Patellar subluxation is a partial dislocation of the kneecap (patella). It’s also known as patellar instability or kneecap instability.

Patellar tendonitis — also called jumper’s knee — is a type of knee tendon pain. It happens when the tendons connecting the kneecap to the shinbone become inflamed from overuse. Repetitive motions, ...

Patella is the medical term for your kneecap. Patellar tracking disorder (or patellar maltracking) describes movement of your kneecap that isn’t aligned, like your kneecap moving sideways. It can ...