I read on the internet that the nerves can take up to 6 months to heal,with that kind of extensive damage, one month to maybe retain bladder control, if not by then, he will be permently incontenent, Thanks for the small diaper idea, I have a couple towels that he lays on, he is very sore and has cuts on tail,will use diapers when he is not so sore, I am waiting to see how he does this week, I will be contacting another vet, then.I am not sure about the tail amputation, luckily he is not peeing all over,usually when there is pressure from laying or me holding him.