Removal of the subchondral plate in acetabular preparation

A G Sutherland, S D'Arcy, D Smart, G P Ashcroft

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Retention of the subchondral plate during acetabular preparation in total hip replacement is believed to be an important part of modern cementing techniques. We have constructed a two-dimensional finite element analysis to assess the effect of retention and removal of this relatively stiff structure. The finite element analysis demonstrates increased stiffness and stress concentrations at the bone-cement interface that may have an adverse effect. Although further study is required, it may be that subchondral bone retention is not advantageous.

Original languageEnglish
Pages (from-to)19-22
Number of pages4
JournalInternational Orthopaedics
Volume24
Publication statusPublished - 2000

Keywords

  • TOTAL HIP-ARTHROPLASTY
  • STRESS DISTRIBUTIONS
  • JOINT REPLACEMENT
  • BONE
  • PROSTHESES
  • COMPONENT
  • FIXATION
  • WEAR
  • CUPS

Cite this

Removal of the subchondral plate in acetabular preparation. / Sutherland, A G ; D'Arcy, S ; Smart, D ; Ashcroft, G P .

In: International Orthopaedics, Vol. 24, 2000, p. 19-22.

Research output: Contribution to journalArticle

Sutherland, AG, D'Arcy, S, Smart, D & Ashcroft, GP 2000, 'Removal of the subchondral plate in acetabular preparation' International Orthopaedics, vol. 24, pp. 19-22.
Sutherland, A G ; D'Arcy, S ; Smart, D ; Ashcroft, G P . / Removal of the subchondral plate in acetabular preparation. In: International Orthopaedics. 2000 ; Vol. 24. pp. 19-22.
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AU - D'Arcy, S

AU - Smart, D

AU - Ashcroft, G P

PY - 2000

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N2 - Retention of the subchondral plate during acetabular preparation in total hip replacement is believed to be an important part of modern cementing techniques. We have constructed a two-dimensional finite element analysis to assess the effect of retention and removal of this relatively stiff structure. The finite element analysis demonstrates increased stiffness and stress concentrations at the bone-cement interface that may have an adverse effect. Although further study is required, it may be that subchondral bone retention is not advantageous.

AB - Retention of the subchondral plate during acetabular preparation in total hip replacement is believed to be an important part of modern cementing techniques. We have constructed a two-dimensional finite element analysis to assess the effect of retention and removal of this relatively stiff structure. The finite element analysis demonstrates increased stiffness and stress concentrations at the bone-cement interface that may have an adverse effect. Although further study is required, it may be that subchondral bone retention is not advantageous.

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KW - JOINT REPLACEMENT

KW - BONE

KW - PROSTHESES

KW - COMPONENT

KW - FIXATION

KW - WEAR

KW - CUPS

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