SYMPOSIA PAPER Published: 01 January 1998
STP12844S

Characterization of Carbon Fiber-Reinforced Peek Composite for Use as a Bearing Material in Total Hip Replacements

Source

A carbon fiber-reinforced polyetheretherketone (PEEK) composite acetabular cup was fabricated by injection molding. An extensive hip joint simulator test was conducted to evaluate the tribological performance of this CF-PEEK composite cup as a potential orthopaedic bearing surface. Hip joint simulator testing up to 10 million cycles showed that the wear of the composite cups is about 1% that of the UHMWPE cups. Hertzian contact stress analysis indicated that the CF-PEEK material had a lower maximum contact stress/yield strength ratio compared to air-irradiated UHMWPE acetabular cups. With prudent application of composite design principles, it is possible to engineer a composite insert that shows promise as an orthopaedic implant bearing surface in total hip replacements.

Author Information

Polineni, VK
R&D, Howmedica, Inc., Rutherford, NJ
Wang, A
R&D, Howmedica, Inc., Rutherford, NJ
Essner, A
R&D, Howmedica, Inc., Rutherford, NJ
Lin, R
R&D, Howmedica, Inc., Rutherford, NJ
Chopra, A
R&D, Howmedica, Inc., Rutherford, NJ
Stark, C
R&D, Howmedica, Inc., Rutherford, NJ
Dumbleton, JH
R&D, Howmedica, Inc., Rutherford, NJ
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Details
Developed by Committee: F04
Pages: 266–273
DOI: 10.1520/STP12844S
ISBN-EB: 978-0-8031-5391-2
ISBN-13: 978-0-8031-2490-5