The incidence of revision in the UK is the lowest in Europe, that is a fact. Every operation has a risk factor to it. The factors you have introduced are the same for every surgeon performing a TKR. If you weigh up the possible complications of every operation, nobody would have surgery!
Whoever bednobs has to perform the operation the statistics show that there is a 90 percent chance it will be successful.
I don't know which hospital bednobs is going to, but TKR where I work is performed by consultants only.
http://www.alasdairsa...nee%20Replacement.htm
I'd take those odds, as do the general public on a daily basis.