The effect of acetabular cup size on the short-term stability of revision hip arthroplasty: A finite element investigation

A.T.M. Phillips, Pankaj, Asif Sohail Usmani, C.R. Howie

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)

Abstract

The study uses idealized two-dimensional finite element models to examine the behaviour of the acetabular construct following revision hip arthroplasty, carried out using the Slooff-Ling impaction grafting technique. The behaviour of bone graft was considered in detail, with non-linear elasticity and non-associated plasticity being adopted. Load was applied to the acetabular construct through a femoral head using smooth sliding surfaces. In particular, four models were subjected to two idealized cyclic load cases to investigate the effect of acetabular cup size on the short-term stability of the acetabular construct. The study suggests that benefits may be gained by using the largest practical size of acetabular cup. © IMechE 2004.
Original languageEnglish
Pages (from-to)239-249
Number of pages11
JournalProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Volume218
Issue number4
DOIs
Publication statusPublished - 1 Jul 2004
Externally publishedYes

Keywords

  • Impaction grafting
  • Morsellized bone graft
  • Non-associated plasticity
  • Non-linear elasticity

ASJC Scopus subject areas

  • Medicine(all)
  • Mechanical Engineering

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