Fiber optic strain gage verification and polyethylene hip liner testing

Lucas Chavez, Michael Martin, Stephen O. Neidigk, Phillip Cornwell, R. Michael Meneghini, Joe Racanelli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

To optimize stability in total hip arthroplasty, the use of larger femoral heads necessitates a polyethylene liner of reduced thickness. An understanding of the mechanical properties, particularly resistance to fatigue failure, of highly-crosslinked polyethylene is critical to determine the optimal parameters for clinical use. The primary purposes of this study were to characterize the X3™ highly cross-linked polyethylene (HCLPE) liner peripheral face strain field in multiple orthopaedic acetabular shell constructs under physiological loading and to evaluate the usefulness of fiber optic strain gages in this type of biomedical application. The first phase of this study involved measuring X3 HCLPE material properties in tension and compression using uniaxial fiber optic strain gages and resistance based uniaxial and multi-axial (rosette) strain gages to gain greater insight into the complexities and limitations of the use of fiber optic strain gages with X3 HCLPE. In the second phase, physical testing was used to evaluate the effect of HCLPE thickness on the hoop strain field of liner samples of three different thicknesses at three inclination angles and three head offsets that simulate potential in vivo clinical scenarios occurring in hip replacement. The results from these studies will be presented in this paper.

Original languageEnglish (US)
Title of host publicationStructural Dynamics - Proceedings of the 28th IMAC, A Conference on Structural Dynamics, 2010
Pages115-134
Number of pages20
EditionPART 1
StatePublished - Aug 15 2011
Externally publishedYes
Event28th IMAC, A Conference on Structural Dynamics, 2010 - Jacksonville, FL, United States
Duration: Feb 1 2010Feb 4 2010

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
NumberPART 1
Volume3
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Other

Other28th IMAC, A Conference on Structural Dynamics, 2010
CountryUnited States
CityJacksonville, FL
Period2/1/102/4/10

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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  • Cite this

    Chavez, L., Martin, M., Neidigk, S. O., Cornwell, P., Meneghini, R. M., & Racanelli, J. (2011). Fiber optic strain gage verification and polyethylene hip liner testing. In Structural Dynamics - Proceedings of the 28th IMAC, A Conference on Structural Dynamics, 2010 (PART 1 ed., pp. 115-134). (Conference Proceedings of the Society for Experimental Mechanics Series; Vol. 3, No. PART 1).