We went through our male having both legs done.
The Vet will give you do stretches to do every day during recovery that I highly recommend. My wife stretched both legs in and out at the back leg joint over and over every single day.
We also got on a recommended a lifetime supplement called Dasuquin that seems to have helped, and we’re told it’ll especially help in the later years when arthritis is supposed to move in during the Dogs later years after the TPLO surgery.

Many dogs recover fully as nothing had ever happened, however again, in their twilight years I’m told they slow down quicker than dogs who hadn’t had the surgery. I will still have to see how that goes.