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ECiMa™ for Low Wear, Optimal Mechanical Properties and Oxidation Resistance of Hip Bearings

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Total Hip Arthroplasty

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Abstract

Peri-prosthetic osteolysis, secondary to wear, is a limitation of conventional UHMWPE. Highly cross-linked polyethylene (HXLPE) materials were introduced to overcome these limitations; however, there are still concerns with regard to material property degradation and oxidation. ECiMa is a cold-irradiated, mechanically annealed, vitamin-E-blended HXLPE developed to maintain mechanical properties, minimise wear and improve long-term oxidation resistance. This chapter reports on the in vitro testing that has been completed for ECiMa. The material has demonstrated a reduced wear rate during in vitro hip simulation when compared to conventional UHMWPE, and improved mechanical properties and long-term oxidation resistance in comparison to HXLPE. This makes ECiMa a promising next-generation bearing material.

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Authors and Affiliations

  1. Technical Department, Corin Ltd, Corinium Centre, GL7 1YJ, Cirencester, Gloucestershire, UK

    Alison Traynor M.Eng., David Simpson Ph.D. & Simon Collins Ph.D.

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  1. Alison Traynor M.Eng.
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  2. David Simpson Ph.D.
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  3. Simon Collins Ph.D.
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Correspondence to Alison Traynor M.Eng. .

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Editors and Affiliations

  1. , 2nd Orthopaedic Department, Orthopaedic Hospital Vienna-Speising, Speisinger Straße 109, Vienna, 1130, Austria

    Karl Knahr

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Traynor, A., Simpson, D., Collins, S. (2012). ECiMa™ for Low Wear, Optimal Mechanical Properties and Oxidation Resistance of Hip Bearings. In: Knahr, K. (eds) Total Hip Arthroplasty. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27361-2_15

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  • DOI: https://doi.org/10.1007/978-3-642-27361-2_15

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-27360-5

  • Online ISBN: 978-3-642-27361-2

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