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What would cause a cyst to form under my knee cap?Is there any help for nerve pain one year after total knee replacement?

2 doctors weighed in
Dr David Fisher
Orthopedic Surgery
1 doctor agrees

In brief: Arthritis

A cyst under the patella (kneecap) will often develop as a result of articular cartilage degeneration which can occur with arthritis or other conditions that lead to damage of the cartilage.
These can be found in any joint. The cyst is a fluid filled cavity that will often connect with the joint at the area of cartilage damage. If the cyst has occurred after tka it is likely something else.

In brief: Arthritis

A cyst under the patella (kneecap) will often develop as a result of articular cartilage degeneration which can occur with arthritis or other conditions that lead to damage of the cartilage.
These can be found in any joint. The cyst is a fluid filled cavity that will often connect with the joint at the area of cartilage damage. If the cyst has occurred after tka it is likely something else.
Dr David Fisher
Dr David Fisher
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