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Past, present and the future of metal on metal implants
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Institute of Engineering Thermofluids, Surfaces and Interfaces, School of Mechanical Engineering, Universiy of Leeds.
Institute of Engineering Thermofluids, Surfaces and Interfaces, School of Mechanical Engineering, Universiy of Leeds.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-8676-8819
2011 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Metal on Metal joint replacements are considered as an alternative to Metal on Polyethylene implants, specially in case of young patients who require a safe and long-term performance of the device. The reduction of wear particles is a key factor in order to improve the life time of the implant in the human body. Metals have excellent properties that can increase the long-term success of the artificial joint replacement.However, corrosion of the metallic implant leads to an increase of the ion levels into the urine and blood of the patient. Metallic ions may produce a host response that can induce a catastrophic failure of the implant.The study of tribology and corrosion in biological environments (biotribocorrosion) will lead to a better understanding of the mechanisms that affect the degradation of the implant and the release of both particles and ions.The present paper reviews a number of medical results that show the increase of ions present in the body of patients. Different types of body response such as hypersensitivity and pseudotumours are also presented.The tribological performance of hip implants is explained as well as the corrosive behaviour of the most commonly used metallic materials. Biotribocorrosion studies are reviewed and the mechanisms of degradation of implants in biological environments are explained. Finally, some models of the performance of artificial joints are reported.

Place, publisher, year, edition, pages
2011.
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-27721Local ID: 14112091-4de7-476b-ab50-8d5f27f30591OAI: oai:DiVA.org:ltu-27721DiVA, id: diva2:1000910
Conference
International Conference on BioTribology : 18/09/2011 - 21/09/2011
Note
Godkänd; 2011; 20111221 (emami)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-03-08Bibliographically approved

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CiteExportLink to record
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