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Evaluation of fretting wear on the femoral stem surface

Zhang, Hongyu, Brown, L., Blunt, Liam and Barrans, Simon (2009) Evaluation of fretting wear on the femoral stem surface. In: International Conference on Bioengineering & Biomaterials , 18-29 March, Meknes, Moroco.

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Abstract

Fretting wear on polished femoral stems has been well documented in clinical reports, but in vitro simulation to replicate this wear has seldom been attempted and only limited success has been achieved. In the present study, fretting wear was successfully reproduced on the stem surface by incorporating initial stem implantation in a sawbone through bone cement and utilisation of saline solution to mimic in vivo conditions. The stem was examined through optical microscopy, optical interferometry and scanning electron microscopy. In addition, a technique was developed to identify fretting wear based on grey scale threshold, and a grid coordinate system was designed to relocate the position on the stem surface. This study gave scope for comparative investigation concerning the influence of femoral stem design, bone cement brand on generation of fretting wear.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TJ Mechanical engineering and machinery
Schools: School of Computing and Engineering
School of Computing and Engineering > Centre for Precision Technologies
School of Computing and Engineering > Centre for Precision Technologies > Engineering Control and Machine Performance Research Group
School of Computing and Engineering > Centre for Precision Technologies > Surface Metrology Group
School of Computing and Engineering > Pedagogical Research Group
School of Computing and Engineering > Turbocharger Research Institute
Related URLs:
Depositing User: Liam Blunt
Date Deposited: 13 May 2010 14:12
Last Modified: 23 Sep 2014 11:22
URI: http://eprints.hud.ac.uk/id/eprint/7633

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