"My advice is do not have the TKR until the pain of everyday is so bad you can't stand it. I'll stick with that advise. It scares me, have had two friends in early 60's die of blood clots from TKR."
Good solid advice, mate. TKR has advanced light years since the dark ages of the 60's but there
still is risk. Since TKR implants DO have a limited lifespan waiting IS the thing to do in all cases.
In my case I faced a wheel chair or TKR my joints were that far gone. I was not ready to pack it
in either. So TKR was the only choice I had. I pushed my body as far as it would go so now since
I've already used up my "second chance" by getting TKR I damned careful as there is NO third
chance left.
Ride as hard as you can while you can then treat your TKR with care as they MUST last the rest
of your life.