I have a very active 6year old son who broke his femur in a trampoline Accident on Nov.4th 2008. He had surgery and a rod was put in. He was in a spica-cast for 8 weeks and then they had him in a full leg cast until yesterday (Jan.12, 2009). He is having A LOT of pain and cannot move his knee. The doctor did not recommend PT but I don't know how to help the knee loosen up. I am having to carry him everywhere and he cries even then when being moved. Any suggestions would be very helpful!