Agree with Sue, as I understood the point, try to find the rare orthopedic surgeon who will assess hip, knee, low back (lumbosacral), sciatica, your medications and diagnoses. Also ideally an internist or family practitioner who can Rx basic trials of celecoxib or similar medication if appropriate for active days, or difficult time sleeping. That said, hip replacement might help, just be prepared for many months of recovery and careful hip surgery precautions. My situation was somewhat similar to yours, although I am younger, and if I could go back 9 months I'm not sure I would proceed with surgery. Take your time investigating, best wishes.