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The influence of acetabular cup angle on the wear of “BIOLOX Forte” alumina ceramic bearing couples in a hip joint simulator

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Abstract

The wear of “Biolox Forte” alumina ceramic bearing couples has been investigated at two different acetabular cup angles in a physiological hip joint simulator. All cups were set in the anatomical position of 45° inclination in the M/L plane for the first two million cycles and then four of the six cups were re-aligned to 60° for a further three million cycles. A “running-in” wear of 0.14 mm3 per million cycles was observed for the first million cycles, after which a steady state wear rate of 0.05 mm3 per million cycles was observed. Increasing the acetabular cup angle to 60° did not significantly affect the wear rate.

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Authors and Affiliations

  1. School of Mechanical Engineering, University of Leeds, LS2 9JT, U.K

    J. E. Nevelos & J. Fisher

  2. Division of Microbiology, University of Leeds, LS2 9JT, U.K

    E. Ingham

  3. Stryker Howmedica Osteonics, Newbury, Berks, RG14 5EG, U.K

    C. Doyle

  4. Bradford Royal Infirmary, Bradford, U.K

    A. B. Nevelos

Authors
  1. J. E. Nevelos
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  2. E. Ingham
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  3. C. Doyle
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  4. A. B. Nevelos
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  5. J. Fisher
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Nevelos, J.E., Ingham, E., Doyle, C. et al. The influence of acetabular cup angle on the wear of “BIOLOX Forte” alumina ceramic bearing couples in a hip joint simulator. Journal of Materials Science: Materials in Medicine 12, 141–144 (2001). https://doi.org/10.1023/A:1008970027306

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  • DOI: https://doi.org/10.1023/A:1008970027306

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