My 5 month old bourbon red tom had some string tangled around his feet and legs. I managed to get him down and got the string off but at the last second before I let him up he started struggling and I heard his leg/foot make a loud pop. Immediately he couldn't stand on it and right at the area that would be conskdered the ankle on a human he can't stand on it it keeps turning inwards. Not sure if it's broken or if it's dislocated somehow. I've got it wrapped with some vet wrap tape and have him in a dog crate where he can't really move around a lot. He has heat in the area he doesn't even try to stand on it. I really don't want to cull him any suggestions or advice?