i am really thankful to both Ashif sir and Utkarsh sir,thanx a lot for your help.

I hope the site given below would help some of the visitors

http://www.physsportsmed.com/issues/...etrella_pa.htm

Sir could You specify something,other than the things mentioned above for a OA patient having sudden severe pain once or twice in a fortnight.
X-ray- dose not show any loose bodies.