My newest kitty Romeo had a broken hip. I did not find him until about 1-2 weeks after he had been hit. He was not mine, but I took him to the vet and got his hip checked (they could not do anything because the hip had already started healing) and his shots and then fixed. He healed within 1 month, and although his hip is still protruding, he walks just fine. Hopefully his owner will take her inside, so she can be safe.Dont let her move around too much, or it will make the healing slower. Good luck barn kitty!