During AAOS, three surgeons recommended against implanting a Zimmer NexGen cementless knee because of "unacceptably high" rates of loosening and corrective surgery.
Among 108 knees operated on and analyzed after two years, 9% had to have revision surgery, and many more had loosening that likely needs surgery, said Richard Berger, a study author and surgeon at Rush University Medical Center in Chicago, in an interview.
He called the revision rate "horrific" said he's now looking into problems with Zimmer knees that do use cement. The components in question are known as " high flex" knee...
