Wow a whole week from now? Umm, I do not like that at all. One thing to do when your dog has to go to the bathroom make sure you get a towel underneath him and support him with it, you do not want any weight on that leg at all. Is the surgeon board certified? The TPLO is a new form of surgery that is very invasive. In envolves the rebreaking of the bone and the fusion of boanes together instead of just making a new ligament from his theigh muscle and holding everything in place with a small but strong kevlar band as is the traditional surgery.