PEEK-OPTIMA Wear Performance can increase knee implant longevity.
In 2010 more than 90,000 knee revision surgeries were performed in the US and Europe. This indicates that some 8% of all knee implant procedures result from failure of the initial knee implant. A contributing factor to these failures is dislocation, whereby the rotational axis slips out of its guide, requiring total replacement of the implant.
Hinge constructs made from PEEK-OPTIMA Reinforced and PEEK-OPTIMA Wear Performance offer superior cold-flow resistance as well as dimensional stability during the device lifetime (>15 years) compared to traditional hinge mechanisms that use UHMWPE, which resists dislocation. In addition, the PEEK-OPTIMA polymer has a flexural strength similar to the cortical bone, thus reducing stress shielding and improving patient comfort. Its proven biocompatibility and biostability in implantable devices worldwide provides safety, longevity and reassurance to patients and surgeons alike.