I had a total knee replacement last July and was recovering very well...six months later, I was accidentally pushed down 1/2 flight of staris and my leg folded under my body when I felll. I went to my surgeon and he told me I had three sprained ligiments and that it would take a while to heal. In the meantime, it is now 5 months later; I ve lost a lot of range of motion, and I can t walk down steps except one at a time....bending the knee is very painful. I use wet heat, try to stretch as much as I can w/o pain meds, then ice it at least twice a day I am presently w/o medical coverage. Do you think there is any other thing wrong? My quads are extremely tight and I cannot go fully around on a stationery bike.