Like everyone else, I'm wishing the best for you Dennis.
For what it's worth;
These joint replacements had really gotten popular in the last 15 years. I've had many customers who have had hip & knee replacements. Probably 98% of them say they don't know why they waited so long.
They'd live day to day in misery. After the replacement, the pain is gone (other than healing / therapy). From what I'm told, the ones who push past the pain during therapy, have better end results.
.........and lastly, of the two joint replacements (Hip & Knee), they say the hip goes smoother.
Again, these are all quotes from many of my customers who have been through it. Myself personally; any operation sounds scary to me. Hope I never need one.