I have Crohn's disease and have developed Avascular Necrosis (AVN) bilaterally in my ankles, knees, and hips, due to prolonged use of prednisone. I've recently had another ankle (left) operation, and am on crutches (non-weight-bearing) for 5 more weeks. Do you have any suggestions of exercises or diets that will help me keep weight off during this period of inactivity while still taking prednisone? My right ankle has been fused, so standing or crutching for too long with all weight on the right ankle is pretty tough. Please help if you can. Thanks!!!