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The effects of manufacturing tolerances and assembly force on the volumetric wear at the taper junction in modular total hip arthroplasty

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  • Thom Bitter
  • Imran Khan
  • Tim Marriott
  • Elaine Lovelady
  • Nico Verdonschot
  • Dennis Janssen

Abstract

Fretting and corrosion at the taper-head interface in total hip arthroplasty has been reported as a potential cause of early failure of the implant system. The finite element (FE) method can be used to study the mechanics at the taper junction that are difficult to assess experimentally. Taper mismatch is one of the factors that can influence the performance of the taper junction. In this study we have assessed the effect of taper mismatch, in combination with assembly force on the volumetric wear. The study showed that higher assembly forces and smaller mismatches result in the least volumetric wear.

Suggested Citation

  • Thom Bitter & Imran Khan & Tim Marriott & Elaine Lovelady & Nico Verdonschot & Dennis Janssen, 2019. "The effects of manufacturing tolerances and assembly force on the volumetric wear at the taper junction in modular total hip arthroplasty," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 22(13), pages 1061-1072, October.
    • Handle: RePEc:taf:gcmbxx:v:22:y:2019:i:13:p:1061-1072
    DOI: 10.1080/10255842.2019.1627524
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