Link  http://www.orthosupersite.com/view.asp?rID=27494

By Stephen B. Murphy, MD ORTHOPEDICS TODAY  April 2008

Nine surgeons with 11 years and 1,100 ceramic-hip experience have never heard a squeak…

…What is more interesting is the severity and frequency of the squeaking. We have seven surgeons who have used the Accolade/Trident implant combination, and all seven have heard squeaking in their office. We have nine surgeons with more than 10.5 years experience with 1,100 hips with flush-mounted liners and none of those surgeons had ever heard a squeak in their office with the exception of one bearing and liner that had mismatched diameters.