Chondromalacia patella occurs when the cartilage of a person’s kneecap softens. It is common in athletes of high impact sports or those who have arthritis in their knees. Chondromalacia patella is ...

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 ...

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.