<s>[INST] I think I have Osteonecrosis I had a MRI done and the doctor told me that a small part of my knee is not getting and circulation. My question is what can I do for the pain and what treatment can I do such as exercise to help the pain in my knee. Also do I need to wear a brace [/INST] You need to do streching exercise for your knee flexors ( hamstring and calf muscles) also strengthen vastasmedialis muscle ( responsible for last 5 degree extension ) you can do straight leg raising exercise and strength you ankle dorsi flexorsKNEE BRACE is not adviced as it will weaken your muscle and reverse physical therapy effecy on you Good Luck </s>