Femoral strain adaptation after total hip replacement. A comparison of cemented and porous ingrowth components in canines

R. Vanderby, P. A. Manley, D. M. Belloli, Sean Kohles, R. J. Thielke, A. A. McBeath

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The purpose of this study was to investigate if experimental strain analysis is predictive of femoral adaptation after total hip replacement (THR). Ten large adult dogs underwent unilateral THR with identical implants. Five implants were press fit for porous ingrowth fixation, and five were cemented. Four months after surgery femora were harvested. Strain gauge rosettes were applied to the femora at eight proximal locations. Femora were compressively loaded on the head of the femur or femoral component. Strain data represented three conditions: preoperative, acutely postoperative, and four-month postoperative. The unoperated femur of each dog was used to simulate preoperative acutely postoperative behavior of the contralateral implanted femur. Strains from each condition were compared. Transverse femoral sections were obtained through the levels of the strain gauges. Fine detailed radiographs were used to quantify morphological changes. Results are discussed.

Original languageEnglish (US)
Pages (from-to)97-109
Number of pages13
JournalProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Volume204
Issue number2
StatePublished - 1990
Externally publishedYes

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Strain gages
Surgery
Predictive analytics

ASJC Scopus subject areas

  • Biomedical Engineering
  • Mechanical Engineering

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Femoral strain adaptation after total hip replacement. A comparison of cemented and porous ingrowth components in canines. / Vanderby, R.; Manley, P. A.; Belloli, D. M.; Kohles, Sean; Thielke, R. J.; McBeath, A. A.

In: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, Vol. 204, No. 2, 1990, p. 97-109.

Research output: Contribution to journalArticle

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