It is a hypertrophied synovial fold due to overuse/sports. Removal produces pain relief.
Removal of loose body
Loose bodies due to either Osteo Chondral Defect, Osteo arthritis, direct impact or synovial chondramatosis usually produce pain and locking of the joint.It is treated by arthroscopic removal.
PFJ/Tibio-Femoral Joint assessment
To check suitability for unicompatment knee replacement.
To check other parts of joint