Hi Ken, that’s a tough one. I would talk about quality of life and how much running means to you. Life won’t end if you need another replacement, sure it would suck, but not as bad as missing out on all the miles you could have enjoyed. I will be running about 3,000 miles this year, 10 years post op. We’re all different but you should be able to run. Hope this helps, p.s. flowers and a bottle of bubbly will always help.