I had surgery on my knee when I was in the Army. A couple of months ago I had x-rays done and it shows bone spurs. The pain is getting worse and there is numbness above the knee. Every time I try and move it all you hear is crunching. I've taken Tylenol and tramadol and it is not working. I can't take nsaids because of ulcers. The pain is unbearable and I don't know what to do.