Hello @bradley1941, welcome to Connect. Four hip revisions is certainly a lot to have gone through. If you don't mind me asking, and if you are comfortable sharing, has your surgeon mentioned how many revisions you can have? I had my knee replaced in March of 2006, and I realize knees replacements are a completely different surgery, I was told you are only able to have so many revisions done with diminishing returns with each.
I'd like to invite a few members who have experience with hip revisions to share their experience. @sueinmn, @eustica, @Adrainpalmer, and @holybible all talked about having to go through a hip revision.
@bradley1941, while we wait for other members to share their experiences, if you are interested, there is an active discussion on Prolia and osteoporosis taking place in the Bones, Joints & Muscles group as well, https://connect.mayoclinic.org/discussion/prolix-treatment-for-osteoporosis/.