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Wear Evaluation of Different Polymeric Materials for Total Disc Replacement (TDR)

[+] Author Affiliations
Vaneet Singh, Cindy Ogden, Kenny Sitton

Medtronic-Spinal and Biologics, Memphis, TN

Paper No. IJTC2011-61102, pp. 35-37; 3 pages
doi:10.1115/IJTC2011-61102
From:
  • ASME/STLE 2011 International Joint Tribology Conference
  • ASME/STLE 2011 Joint Tribology Conference
  • Los Angeles, California, USA, Oct 24–26, 2011
  • ISBN: 978-0-7918-5474-7
  • Copyright © 2011 by ASME

abstract

In this study, we evaluated the wear of different polymeric materials. The temperatures were also monitored near the articulating surfaces. Six pin-on-disc specimens made out from industrial grade Polyetheretherketone (PEEK), medical grade PEEK, Polyacetal, Ultra High Molecular Weight Polyethylene, Polyetherimide, and Polyphenylene Sulfide. The specimens were tested under ± 8° axial rotation and constant compressive load ranging from 50N–444N. The results of study show an increase in the wear and temperature with increased load. The PEEK-on-UHMWPE material combination outperformed all other tested material combinations in terms of volumetric wear.

Copyright © 2011 by ASME
Topics: Wear , Disks

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