The old man has had both hips done (the knee is coming) in his late 50s (10+ years ago). The first hip was flawless, recovery was steady and he was back on the field in a few months and 100% by 9 months. The second hip had a complication, turns out the socket was installed rotated forward very slightly. The problem was that if he bent then rotated, he could pop it out, and did so, at least three times. Each incident meant starting over with rehab. This covered the better part of five years and is the only reason he stopped all involvement in officiating (also worked football).
Based on the results of the first procedure, I would suggest it is well worth it. I watched the old man go from an old 55 to a rejuvinated 56. Unfortunately, everything comes with a risk. Now the poor sob is just old...