
The medial plica can become nipped between femur and patella, with resultant pain.
Plica surgery in the knee is performed to remove a plical fold of joint lining that is being troublesome, perhaps because it is catching in the joint.

The medial plica can become nipped between femur and patella, with resultant pain.
Surgery may be indicated when the patient repetitively experiences symptoms, which may include:
The procedure is usually arthroscopic (keyhole).
If the plica is fully removed, rather than just snipped, recovery can be rather painful. Crutches may be needed for a couple of days and then a stick. Rehabilitation should focus on preventing any adhesions around the patella (by patellar mobilisations) and regaining full range of motion.