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Topographical characterisation of artificial femoral heads: a Benchmarking study
Halmstad University, School of Business and Engineering (SET), Mechanical Engineering and Industrial Design (MTEK), Functional Surfaces.ORCID iD: 0000-0001-8058-1252
Department of Biomaterials, Institute for Surgical Science, SE-413 90 Göteborg, Sweden.
Toponova AB, TeknoCenter 1, Pilefeltsgatan 73, SE-302 50 Halmstad, Sweden.
2004 (English)In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 257, no 12, p. 1275-1280Article in journal (Refereed) Published
Abstract [en]

The main functional demands on artificial joints are that they last more than 20 years. This means optimising the friction coefficient to minimise forces transmitted to the surrounding bone and the wear of the contacting surfaces. Surface roughness has an important influence on friction and wear. Traditionally, the 2D Ra-parameter has been the preferred way to characterise the joint's topography. Today ongoing development of 3D techniques are available for the research, and the aim of the present paper is to highlight the importance and possibilities using high-resolution 3D atomic force microscope ( AFM) and the optical phase-shifting interferometer for texture characterisation of eight commercially available femoral heads. The results show a significant variation of topography and surface-lay for the different femoral heads in the study. The variation and difference between heads were further underlined by the use of different characterisation techniques and measuring strategy. Results highlight the importance of the selection of measurement strategy, parameters, instrumentation, and scale of measurement in order properly to characterise the femoral heads in this study.

Place, publisher, year, edition, pages
Elsevier, 2004. Vol. 257, no 12, p. 1275-1280
Keywords [en]
Artificial joints
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hh:diva-719DOI: 10.1016/j.wear.2004.05.017ISI: 000225750700014Scopus ID: 2-s2.0-10044244811Local ID: 2082/1068OAI: oai:DiVA.org:hh-719DiVA, id: diva2:237937
Conference
9th International Conference on Metrology and Properties of Engineering Surfaces
Available from: 2007-06-05 Created: 2007-06-05 Last updated: 2017-12-13Bibliographically approved

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Rosén, Bengt Göran

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CiteExportLink to record
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  • apa
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  • vancouver
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  • nn-NB
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