Analysis of the shoulder implant

Dale L. Ehnes, James J.S. Stone, Robert H. Cofield, Kai Nan An

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Total shoulder arthroplasty (TSA) is implemented for the relief of pain and better joint function. It is desirable that the TSA can achieve and maintain a long-term and secure fixation of the implanted components. The previous biomechanical studies of shoulder implants were simplified and limited to the two-dimensional (2-D) computational finite element analysis (FEA). In this research, reliable 3-D FEA models were established and used to examine the contact stress distribution, contact region and deformation of implant. Based on FEA results, the design of current shoulder implants can be modified for optimum performance. The substantiated 3-D FEA models can provide important engineering data and clinically useful information toward the development of better shoulder implants for a long-term fixation.

Original languageEnglish (US)
Pages (from-to)129-134
Number of pages6
JournalBiomedical Sciences Instrumentation
Volume36
StatePublished - May 15 2000

Keywords

  • Arthroplasty
  • Biomechanics
  • Contact stress
  • Finite element
  • Material
  • Shoulder implant

ASJC Scopus subject areas

  • Biophysics
  • Medical Laboratory Technology

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