title: Wear of ceramic-on-carbon fiber-reinforced poly-ether ether ketone hip replacements.
abstract: Total hip replacement has been a successful surgical intervention for over 50 years, with the majority of bearings using a polyethylene cup. Long-term failure due to osteolysis and loosening has been widely documented and alternative bearings have been sought. A novel carbon fiber-reinforced poly-ether ether ketone (CFR-PEEK) cup was investigated through experimental friction and wear studies. Friction studies demonstrated the bearings operated in a boundary lubrication condition, with friction factors higher than those for other hip replacement bearings. The wear study was conducted with 36 mm diameter bearings tested against Biolox Delta heads for a period of 10 million cycles. The mean volumetric wear rate was 0.3 mm(3)/Mc, indicating the ceramic-on-CFR-PEEK bearing to be a very low wearing option for total hip replacement.
authors.affiliation: Institute of Medical and Biological Engineering, School of Mechanical Engineering, University of Leeds, Leeds, UK. c.l.brockett@leeds.ac.uk
authors.forename: Claire L
authors.initials: CL
authors.lastname: Brockett
authors.forename: Gemma
authors.initials: G
authors.lastname: John
authors.forename: Sophie
authors.initials: S
authors.lastname: Williams
authors.forename: Zhongmin
authors.initials: Z
authors.lastname: Jin
authors.forename: Graham H
authors.initials: GH
authors.lastname: Isaac
authors.forename: John
authors.initials: J
authors.lastname: Fisher
mesh_terms: D001577:Benzophenones; D002244:Carbon; D000077482:Carbon Fiber; D002516:Ceramics; D017276:Friction; D006622:Hip Prosthesis; D006801:Humans; D007659:Ketones; D008422:Materials Testing; D011092:Polyethylene Glycols; D011108:Polymers; D016474:Weight-Bearing
chemical_list: D001577:Benzophenones; D000077482:Carbon Fiber; D007659:Ketones; D011108:Polymers; C063834:polyetheretherketone; D011092:Polyethylene Glycols; D002244:Carbon