I understand the caution.
I’ve just turned 60 and had a right TJR direct superior approach two years ago. Treated by one of the younger surgeons who said if I did it before I can do it now, including running. Have to accept that I may need revision sooner if I run (but numbers are just a guess – 25 years without running/ 15 with running?).
Runner and triathlete all my adult life, but I’ve been very cautious about running to this point – when I did try over the first 18 months or so it just didn’t feel “right”, but it has gotten better. Time to start again as the Aquabike World Championships I was training for this September is now postponed a year, and I could think about Tri’s and road races again for next year.