Influence of PEEK Coating on Hip Implant Stress Shielding: A Finite Element Analysis

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Description

This article proposes a design concept for hip implants, using a combination of metallic stem with a polymer coating.

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10 p.

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Anguiano-Sanchez, Jesica; Martinez-Romero, Oscar; Siller, Héctor R.; Diaz-Elizondo, Jose A.; Flores-Villalba, Eduardo & Rodríguez, Ciro A. February 7, 2016.

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This article is part of the collection entitled: UNT Scholarly Works and was provided by UNT College of Engineering to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 281 times , with 16 in the last month . More information about this article can be viewed below.

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This article proposes a design concept for hip implants, using a combination of metallic stem with a polymer coating.

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10 p.

Notes

Abstract: Stress shielding is a well-known failure factor in hip implants. This work proposes a design concept for hip implants, using a combination of metallic stem with a polymer coating (polyether ether ketone (PEEK)). The proposed design concept is simulated using titanium alloy stems and PEEK coatings with thicknesses varying from 100 to 400 𝜇m. The Finite Element analysis of the cancellous bone surrounding the implant shows promising results.The effective von Mises stress increases between 81 and 92% for the complete volume of cancellous bone.When focusing on the proximal zone of the implant, the increased stress transmission to the cancellous bone reaches between 47 and 60%. This increment in load transferred to the bone can influence mineral bone loss due to stress shielding, minimizing such effect, and thus prolonging implant lifespan.

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  • Computational and Mathematical Methods in Medicine, 2016. Cairo, Egypt: Hindawi Publishing Corporation

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  • Publication Title: Computational and Mathematical Methods in Medicine
  • Volume: 2016
  • Pages: 1-10
  • Peer Reviewed: Yes

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UNT Scholarly Works

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  • October 6, 2015

Accepted Date

  • February 7, 2016

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  • February 7, 2016

Added to The UNT Digital Library

  • Sept. 17, 2017, 6:24 p.m.

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Anguiano-Sanchez, Jesica; Martinez-Romero, Oscar; Siller, Héctor R.; Diaz-Elizondo, Jose A.; Flores-Villalba, Eduardo & Rodríguez, Ciro A. Influence of PEEK Coating on Hip Implant Stress Shielding: A Finite Element Analysis, article, February 7, 2016; Cairo, Egypt. (digital.library.unt.edu/ark:/67531/metadc993394/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Engineering.