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A member asked:
My knee oddly popped. i had a sharp pain right under my kneecap. it swelled and bruised. what did i do?
A doctor has provided 1 answer
Several possibility: There are a few structures there that can cause sudden pain. With this small amount of info, things to consider are: patella tendon strain or partial tear, patella cartilage injury, infrapatellar fat pad impingement, meniscus tear, inferior pole patella fracture. If symptoms do not improve, you should be seen by orthopaedic surgeon.
Answered 8/20/2013
5.3k views
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