Arthritis/Severe knee pain

I am hoping I can get some answers. My dad is in constant severe knee pain. We believe it is arthritis but it seems there may be something else that is causing this severe pain. He recently went for a treatment called prolotherapy to relieve some of the pain (it is not fda approved but he thought it may help him, it turned out to be a total disaster) and it made things worse. He is 80 and the ...click here to continue

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