Just realized that it has been a while since I've updated this post. Had my 1 year checkup done on the knees and they were found to be doing great. I've had to go back to phisio for a little while (about 3 months) as the more I started to run , walk more, and a return to work, the more it became apparent that the years of suffering with arthritic knees had caused a lot of muscles in the hips and lower back to tighten up. so back to phisio and rehab I went. All done with treatment now but still working on those tight hip flexors. This morning I ran a 5k with my daughters. One asked me to keep pace with her as she was not sure about finishing. She did finish without walking which is what she wanted to achieve, she also set a goal of 40 minutes but wound up running it in 36 minutes. My other daughter ran it in 24 minutes. My running felt great, but was surprised to find a couple of gravel sections on the course. On a side note I've found that on all my runs the last month or 2 that my pace has picked up quite a bit. Last Sunday on a 3 mile run I was surprised to see that my pace was at a 8 minute mile, that is faster then I've run in the last 15 years. I also noticed that my heart rate was way lower then it used to be. To me it felt like one of those run all day paces. People that are considering TKR, go for it. If one is in good shape going in and willing to work on the recovery the chances of returning to running are excellent. The latest studies have also shown that there is no signs of damage being being done on the replacement knees for those of us who continue with running. Next up for me is a 10k in July. My orthopedic surgeon told me when I asked about running again said that was fine by him, joint replacement is all about giving back ones quality of everyday life.