Abstract

The tapered joints of modular hip implants are prone to fretting and crevice-corrosion. This can lead to total failure in under a year, especially for heavier, more active implant recipients. In this study, fractography of a failed Profemur Z implant showed that a life limiting fatigue crack was nucleated on the anterolateral surface of the implant's neck. The fatigue crack nucleation area appeared to have both more fretting damage and a higher corrosion rate than on other surfaces of the neck.

Original languageEnglish (US)
Pages (from-to)45-50
Number of pages6
JournalCase Studies in Engineering Failure Analysis
Volume2
Issue number1
DOIs
StatePublished - 2014

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Fractography
Corrosion rate
Nucleation
Corrosion
Fatigue cracks

Keywords

  • Corrosion
  • Fatigue
  • Fractography
  • Fretting
  • Hip
  • Profemur

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality

Cite this

Fractography of a neck failure in a double-modular hip implant. / Williams, Jason J.; Chawla, Nikhilesh.

In: Case Studies in Engineering Failure Analysis, Vol. 2, No. 1, 2014, p. 45-50.

Research output: Contribution to journalArticle

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