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FDA Approves First Ceramic-On-Metal Total Hip Replacement System

Wed, 06/15/2011 - 6:17am

PRNewswire-USNewswire/ The U.S. Food and Drug Administration has approved the first ceramic-on-metal total artificial hip system for patients with osteoarthritis. Previous total hip replacement systems cleared or approved by FDA have used different combinations of metal, ceramic, and polyethylene (a form of plastic). The Pinnacle CoMplete Acetabular Hip System is the first to combine a ceramic ball and a metal socket.

"Orthopedic surgeons and their patients now have an additional option for total hip replacement," said Christy Foreman, director of the Office of Device Evaluation in the FDA's Center for Devices and Radiological Health. The FDA's approval is based on a two-year, randomized clinical trial that found no clinical difference between 194 patients who received the new ceramic-on-metal system and 196 patients in a control group who received a metal-on-metal hip implant. Two patients who received the Pinnacle CoMplete system required a second surgery to replace their new implant compared with three patients who required a second surgery in the control group.

As a condition of FDA approval, the manufacturer, DePuy Orthopaedics Inc., will conduct a post-market study, monitoring patients receiving the system for adverse events and metal ion concentrations in their blood.

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