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The effect of different assembly loads on taper junction fretting wear in total hip replacements

English, RG and Ashkanfar, A and Rothwell, G (2016) The effect of different assembly loads on taper junction fretting wear in total hip replacements. Tribology International, 95. pp. 199-210. ISSN 1879-2464

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Abstract

Variability in the magnitude of the impaction force applied by surgeons to assemble a hip prosthetic head to a femoral stem could be a cause of increased wear in taper junctions. This study investigates the effect of varying the magnitude of the assembly force on fretting wear at the taper over a 10 year period using a 3D finite element model and wear algorithm. It is demonstrated that an increase in assembly force results in a reduction in fretting wear and it is recommended that surgeons should apply an impact force of at least 4 kN to minimise wear rates. The wear patterns and wear rates presented are comparable with observation and measurement of those seen in retrieved prostheses.

Item Type: Article
Uncontrolled Keywords: 0913 Mechanical Engineering
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Maritime and Mechanical Engineering
Publisher: Elsevier
Date Deposited: 15 Dec 2015 10:50
Last Modified: 06 Sep 2017 17:44
DOI or Identification number: 10.1016/j.triboint.2015.11.025
URI: http://researchonline.ljmu.ac.uk/id/eprint/2471

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