S.T.
i'm glad you asked, and will be watching responses with interest. my right knee, hinky from the running i used to do, has been dreadfully painful lately. that'll teach ME to try and start a workout program again. i fear it will end up in replacement.
my MIL had hers done. it took about a year before it stopped being painful, then about two years after that it started hurting again but she won't consider another replacement.
that being said, she was very lax about her PT and her health in general. that's not you.
one of my favorite aunts had it done a decade ago and it gave her her life back. she said it was very painful for a few months, but she powered through it and did everything she was supposed to, and is back to yoga and hiking and being a gorgeous old dynamo.
i want that to be me.
khairete
S.