Carbon-fibre-reinforced PEEK: An alternative material for flexion bushings of rotating hinged knee joints?

摘要

Background: For prosthetic knee joints of the hinged type, typically polyethylene (PE) flexion bushings are used between axis and femoral component to prevent metallic wear. Nevertheless, PE-wear can lead to periprosthetic osteolysis followed by aseptic loosening of the implant. Based on high creep and wear resistance carbon-fibre-reinforced polyether ether ketones (CFR-PEEKS) could provide an alternative material to ultra-high-molecular-weight polyethylene (UHMWPE) for this bearing type.