Sounds like they're using the newer surgery. Got my right hip done in 2009, 4-1/2lbs of chrome-moly steel, zirconia ceramic, and HDPE. 3" hole through the middle of the gluteus maximus. That took over a year to heal, though I was in less pain when I woke from the surgery than I'd been in when they knocked me out. 2014 they did the left hip. 2" incision in the front of the thigh, in soft tissue, missing all the muscle. I walked a quarter mile the first day and was back to work in 8 weeks. Admittedly, I was in the best physical condition I've been in since high school for the 2nd operation, but that surgery is way easier on the body than the one that goes in through the glute, and heals way faster.
The radiating pain should be the hip. If so, the surgery will fix it. If not, talk to a pain management doc about steroid injections near the spine, and if they work, irradiation of the nerves there may fix it for a while. When was talking to the doc who got my wife walking again about my back, he told me there was a 50% chance they could make the back better, and a 50% chance they'd make it worse. Hers was to the point nothing else could help. I had the nerves burned last March, just before the lockdown, and it's not as good as I'd hoped, but still better than it was. I'm good for about 10-15 minutes of doing stuff bent over, or hours and hours standing up straight, but when it gets too much, I can just sit down for an hour or so and I can get back to it. Good thing I decided to retire after the lockdown started. I'd have to have found a desk job, and I hate that kind of work.
I asked for my hip bones, and neither doc would give them to me. I have a macabre sense of humor, having spend much of my ten years as a photographer doing autopsy photos, among other things. Cane handles would be good.
Bill