The effect of the wall tickness on war of an UHMWPE acetabular liner

J. Jamari*, A. Hidayat, E. Saputra, I.B. Anwar, R. Ismail, E. van der Heide

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

A larger diameter of femoral head of artificial hip joint (AHJ) is commonly recommended for increasing range of motion (RoM) and for avoiding dislocation. Unfortunately, increasing that diameter will reduce the material liner thickness of the acetabular component. The behaviour of the AHJ contact system with thickness variation of the Ultra High Molecular Weight Polyethylene (UHMWPE) acetabular liner was studied numerically and experimentally. Finite element analysis was employed for calculating contact stresses and the wear volume was measured experimentally. Numerical results show higher contact stresses with decreasing liner wall thickness. Yet, the experimental results suggest that wear decreases as well with decreasing wall thickness. These findings are important in designing an optimised acetabular liner for larger RoM.
Original languageEnglish
Pages (from-to)196-200
Number of pages6
JournalAdvanced materials research
Volume1123
Early online date26 Aug 2015
DOIs
Publication statusPublished - 2015

Keywords

  • artificial hip joint
  • acetabular liner
  • thickness
  • wear
  • contact stress
  • 2023 OA procedure

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