Welcome to the family. Good news, your not dealing with cancer, a big plus. I can't help with the small dog part, Gus was 113lbs when we started his journey, but for tips on what to expect post op, I would think it is pretty much the same. Expect ups and downs. Furys probably not going to be his/herself for a little while, thank the meds for some of that. You probably won't be getting much sleep at times, so if you have the chance to grab a few Z's, better take it. You will find that it is the humans that have way more anxiety about this whole thing than the dogs themselves, and the fact that you aren't dealing with a cancer is fabulous since once Fury heals, it should be life as it was before. Some people have had issues with peeing and " movements ", you won't believe how some people think they just won the lottery when that first crap happens post op, it's quite a big deal here sometimes Gus had phantom pain about 5 days out, he would yelp at the top of his lungs, it got better with time, lasted about 4 weeks. From what I see here, I would say the majority of dogs don't get it, but Gabapentin is the med we used to help control that pain. You might have a day or 2 when you think everything is going well, then the next isn't so good, don't be surprised by that, but the usual " worst" time is the first 2 weeks, but these guys are amazing once that healing process has turned the corner. Some dogs show bruising, the site where the incision is starts to look red after a couple days, don't be too alarmed by that , doesn't look the best , just watch it, if you see excessive drainage or a pussy looking fluid, call the vet. Don't be afraid to ask anything, experience gives the best answers. Paws up, Spirit Gus and Dan