Hey everybody, sorry for the delayed update. A couple ups and downs. My surgeon basically said (in the most professional way possible) that there wasn't a visible problem so he couldn't do much about it. The groin hasn't interfered too much with normal life, but enough to be annoying. My daughter had a dinosaur themed party for her third birthday, and I managed to chase kids around in an inflatable T-Rex costume without issue, when the week before just stubbing my toe made it painful to get into my truck... Frustratingly inconsistent.
In any event, I did start PT. I really like the therapist I'm using - I explained my tendency to push through pain when I should know better, and he's been good about helping identify the motions that will aggravate the pain versus isolating the muscles that need improving. He recently worked with a guy about my age who also had AVN resulting in a hip replacement, so it's not his first rodeo (though apparently that patient's AVN was the result of a weird bedsheet related accident... Not kidding).
Doing a lot of the things you described
@BionicButt - bridges, clams, etc. The hardest by far is having an elastic band around my ankles and walking sideways.
I've been to two sessions and doing the home exercises for less than a week, but I swear I can already feel a strength difference. The PT says it's not unusual, some of my glute muscles have just basically forgotten to do stuff and the exercises remind them, haha. As he put it, I literally have a lazy... Well, I can't use the exact phrase, but a lazy glute. It's good to feel muscle soreness but not the groin pain. It's also already helping my lower back pain, since apparently I was using some of those muscles to compensate. I joked with my wife that if I keep this up, I'm going to keep the belly of a desk job but the butt of an athlete, haha.
Basically, I wish I had done PT six months ago. I still think the wire was a problem, but I'm realizing it was just a contributing factor and the bigger problem was the lack of "supporting cast" muscles as I think of them.