Well a friend of mine had to amputate a leg of her one baby after his clutch mate decided to bite it and it was half bitten off. She says hes in perfect health now as an adult and is quite the stud with all his lady friends.
I've "inherited" a couple of them like that where the leg or arm was accidentally injured or severed and nobody wanted to buy it or look after it. They do well in spite of it as long as there is no infection resulting from the initial "cut".