Stop the severe knee pain

Hi, my name is Brad and when I was 6ft tall bullet proof I had a terrible motorcycle accident that took my left lower leg off. The doctors took the lower leg out of the bumper of the automobile and tried to reattach it to the leg and after4 years of operations and casts and outriggers I had a leg. Not pretty at all but a leg. Doctors said that I would need more surgery but I was young and didn't think that I would have the problems that I have today. Both knees are bone on bone. Hip joints and back are next if the knees aren't replaced and leg straightened. I will be unable to work for 8 to 12 months on the bad leg and 6 for the right knee. So if anyone would like to hear horror stories about the years of recovery just let me know. Thank U for your help!!!!!