A big part of the success of your surgery is up to you! My mom had her first knee replacement at age 61, she regained her mobility but it took her a couple of months. I love my mom, but she kind of leans toward self-pity. Sorry, I don't know how else to put it!
The day before my mom had her surgery my grandmother fell and broke her hip, so her and mom ended up having joint replacements on the same day! :shock: My granny, despite being 83 (at the time) and partially blind recovered much faster. She just has that determination and positive mindset that I think is so important!
So think positive and good luck!!