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A member asked:

What injury of the knee could lead to pain behind the kneecap and the inability to fully extend the leg?

A doctor has provided 1 answer

Several things: Cartilage wear behind the knee cap called chondromalacia, or degenerative arthritis, quadriceps tendinitis, patella tendinitis, and possibly an anterior horn meniscus tear. If it was a impact injury a patella fracture or bone contusion could do the same.

Answered 10/5/2013

5.6k views

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