I recently had a year old hen someone gave me to rehab, she had a leg that hung at the hip, curled toes, absolutely no reflex or movement. She had been attacked by a predator. I did try wrapping it, the hip close to the body. She sat in a box about 3 weeks, not moving. Then I would take her outside in the grass. After about 4-5 weeks, I felt her toes barely curl around my finger and she would hop around hardly putting weight on her leg. Now it's been about 8 weeks and she is running all over the yard, I can hardly catch her. It takes a lot of patience, but she is 100% healed. It wasn't a broken bone, maybe pulled hamstring or whatever, but it's worth a try!