Well congratulations to you and Lucky, who is indeed "lucky". Just another note about a three legged cat. My daughter found a kitten several years ago when she was visiting her father, and of course begged to keep him. "Jack" became a member of their family and they immediately noticed that he was lame in his front right leg. The vet ended up amputating that leg up to the shoulder because the muscle and nerves were dead. That cat is great. He gets around, jumps and is fat and happy. So in case anyone worries about pets that lose legs, that's two that I have known of and they did great.