In response to the above posts here is more details about my experience and return to running.
I had a right posterior hip replacement in July, 2018 due to arthritis. I’m 55, 6′ tall and weigh 205 lbs and am a back of the pack runner and triathlete. I initially tried to run 6 months post surgery but that was too soon. I finally did a Turkey Trot in 2019 after training and felt great. I then started training for the Broad Street Run, a 10 miler in Philadelphia, and was doing fine, running slow but loving it. My longest run was 5 miles.I did do a 5 miler in the snow and had a lot of pain afterwards but that subsided after 2 days. I think where I screwed up was in the same week I added a short track work out and a GRIT class which is a 30 minute high intensity interval class and that might have over done it.
I visited my ortho, had the x-ray and was diagnosed with a “stress response,” a precursor to a stress fracture. In my case, the distal tip of the prosthesis in the medullary canal was (is) hitting against the lining, or endosteum and apparently the bone marrow. According to my surgeon, the bone has not completely grown into that part of the prosthesis. The stress response is the body’s way of saying “whoa, ease up there buddy.” Which I have done. I have not run for 2 weeks though I am constantly walking and doing stairs at my job.
I was just wondering if anyone else has had a similar issue and how things turned out. I may be in the same boat as jimmyc and not be able to run. I’m going to give in one last shot after I am pain free. I believe the race will be postponed or cancelled due to COVID-19 but, yes I’m an idiot, I deferred my entry in the Marine Corp Marathon from last year until this year. The embarrassing thing is I should know better, I’m a geriatric physical therapist so it’s a case of “do as I say, not as I do.”