The effect of screw fixation type on a modular hemi-pelvic prosthesis: A 3-D Finite Element Model

Zhixiu Hao*, Chao Wan, Xiangfei Gao, Tao Ji, Haosen Wang

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

In this paper, a 3-D finite element (FE) model of human pelvic with a modular hemi-pelvic prosthesis was constructed to study the effect of screw fixation type on the biomechanics of the prosthesis. The results showed that the elimination of the screw far away from the pelvic arcuate line did not induce the instability and stress increase in the prosthesis. On the contrary, some stress in the sustain and acetabular parts decreased by 26.4% and 11.4%, respectively. In conclusion, the optimization of screw fixation can maintain the prosthesis stability and reduced stress concentration on some prosthesis parts. It was deduced that the optimization of the prosthesis could help surgeon reconstruct the pelvic joint function better and diminish the clinical time and cost.

Original languageEnglish
Pages239-242
Number of pages4
Publication statusPublished - 2011
Externally publishedYes
Event5th International Convention on Rehabilitation Engineering and Assistive Technology, i-CREATe 2011 - Bangkok, Thailand
Duration: 21 Jul 201123 Jul 2011

Conference

Conference5th International Convention on Rehabilitation Engineering and Assistive Technology, i-CREATe 2011
Country/TerritoryThailand
CityBangkok
Period21/07/1123/07/11

Keywords

  • Biomechanics
  • Finite element
  • Modular hemi-pelvic prosthesis
  • Screw fixation

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