Wear studies on the likely performance of CFR-PEEK/CoCrMo for use as artificial joint bearing materials

It is well known that a reduction in the volume of wear produced by articulating surfaces in artificial joints is likely to result in a lower incidence of failure due to wear particle induced osteolysis. Therefore, new materials have been introduced in an effort to produce bearing surfaces with lowe...

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Bibliographic Details
Published inJournal of materials science. Materials in medicine Vol. 20; no. 1; pp. 163 - 170
Main Authors Scholes, S. C., Unsworth, A.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.01.2009
Springer Nature B.V
Subjects
Biocompatible Materials
Biomaterials
Biomechanical Phenomena
Biomedical Engineering and Bioengineering
Biomedical materials
Bone Nails
Bone Plates
Carbon
Ceramics
Chemistry and Materials Science
Composites
Glass
Humans
In Vitro Techniques
Joint Prosthesis
Joints
Ketones
Materials Science
Materials Testing
Natural Materials
Orthopedics
Polyethylene Glycols
Polymer Sciences
Prosthesis Failure
Regenerative Medicine/Tissue Engineering
Stress, Mechanical
Surface Properties
Surfaces and Interfaces
Thin Films
Transplants & implants
Vitallium
Vacuum Oven
Wear Test
Material Combination
UHMWPE
Wear Rate
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Summary:It is well known that a reduction in the volume of wear produced by articulating surfaces in artificial joints is likely to result in a lower incidence of failure due to wear particle induced osteolysis. Therefore, new materials have been introduced in an effort to produce bearing surfaces with lower, more biologically acceptable wear. Polyetheretherketone (PEEK-OPTIMA) has been successfully used in a number of implant applications due to its combination of mechanical strength and biocompatibility. Pin-on-plate wear tests were performed on various combinations of PEEK-OPTIMA and carbon fibre reinforced PEEK-OPTIMA (CFR-PEEK) against various CoCrMo alloys to assess the potential of this material combination for use in orthopaedic implants. The PEEK/low carbon CoCrMo produced the highest wear. CFR-PEEK against high carbon or low carbon CoCrMo provided low wear factors. Pin-on-plate tests performed on ultra-high molecular weight polyethylene (UHMWPE) against CoCrMo (using comparable test conditions) have shown similar or higher wear than that found for CFR-PEEK/CoCrMo. This study gives confidence in the likelihood of this material combination performing well in orthopaedic applications.
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ISSN:0957-4530
1573-4838
DOI:10.1007/s10856-008-3558-3