which prosthesis is best?

[JenniferG]

ooops sorry Kath, didn't read your last line. I concur.

 

[Josephine]

To be honest, the statistics on which products are used most are interesting. I haven't seen any knee stats lately but I remember one a few years ago for hips where one particular implant had cornered the market to the tune of 85% and the next took about 12% leaving only 2% for all the rest! (these are guesstimates, I can't actually recall the real numbers). I wouldn't mind betting that knees would have a similar result.