I didn't have a replacement, but I had about everything else that could possibly be done to my right shoulder, short of replacing it LOL.
The main thing was to stick to the PT and home exercises. Yeah, it could hurt doing them, but it sure pays off in the long run.
I timed my PT and home exercises to be about 1 1/2 hours after taking my pain meds, so they were fully kicked in while doing them :D:D:D
Wishing you a very speedy recovery :D:D:D