knee cap my leg want straighten only when I walk when i sit down and lift my leg it want straighten out it is very painful this been going on for 4years and its getting worser and worser I walk with a limp now I have gotten 3 MRI done and 2 xrays they cant find anything I went to physical therapy but no help when i touch my knee cap now it hurts bad and it want stay in place do you know what it is I need help
Hello, Sorry to hear the trouble you faced with no help. Coming straight to Pinterest, what would have made a big help to us was that the MRI reports was explained here.  But well since It's not there we have to look other options to work out. Since you mentioned you get pain while straightening the knee just behind the cap I suspect it to be patellofemoral arthritis or Chen Chat Doctor.  For finding if it is Chen