Nurses.... ALL Nurses, ROCK!
I hate to have to need them from time to time, but always very glad to have them there when I do and they're always terrific.
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Boy! @Robert M says he's getting a new knee and then it seems like half the site has had theirs done, too. Bunch'a Geriatrics! 
My biking friend, Pat, had both of his done early in 2019 about 5 weeks apart and his recovery sounds like all of you. He was back on a bike trainer 3 weeks after the second one doing easy pedaling. In April, he was back on the road, in May doing easy rides and back with the Sunday morning crowd in late July, keeping up on easy/moderate rides. The guy's a trooper.
The surprise (for him and us other bikers when we first saw him again) was when he looked at himself in a full-length mirror after a while and suddenly noticed that he was no longer bow-legged for the first time in his life.