Biomechanical analysis of different material of delta external fixator for ankle joint - The effect of standing

Muhammad Hanif Ramlee, Aishah Umairah Abd Aziz, Asnida Abdul Wahab, Gan Hong Seng, Hadafi Fitri Mohd Latip, Mohammed Rafiq Abdul Kadir

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

3 Citations (Scopus)

Abstract

Material selection for an implant is one of the elements that must be considered in the healing process of a broken bone. Complications such as implant loosening, malunion, non-union and deformity may happen if wrong material of implant is used. Therefore, this study presents a finite element analysis on external fixator used in treating Type III pilon fracture to simulate the effect of different materials used. The main aim of the study is to evaluate the use of titanium alloy and stainless steel for delta external fixator construct and its effects from biomechanical point of view. Von Mises stress, displacement and micromovement are the concerned parameters in evaluating and describing the stability and stiffness of the construct, and how well does it support the bone healing process. Three-dimensional model of foot and ankle bones were reconstructed using Mimics software and tested according to physiological condition. The finding shows that stainless steel external fixator experienced less stress at the pin-bone interface of tibia bone as compared with titanium alloy construct. The use of stainless steel material also helps in promoting bone healing process as there are micromovement observed at the fracture fragments. Therefore, in terms of biomechanical aspect, it is suggested that stainless steel material is the best option for the external fixator in treating type III pilon fracture.

Original languageEnglish
Title of host publication2nd International Conference on BioSignal Analysis, Processing and Systems, ICBAPS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages81-86
Number of pages6
ISBN (Electronic)9781538612774
DOIs
Publication statusPublished - 7 Nov 2018
Externally publishedYes
Event2nd International Conference on BioSignal Analysis, Processing and Systems, ICBAPS 2018 - Kuching, Sarawak, Malaysia
Duration: 24 Jul 201826 Jul 2018

Publication series

Name2nd International Conference on BioSignal Analysis, Processing and Systems, ICBAPS 2018

Conference

Conference2nd International Conference on BioSignal Analysis, Processing and Systems, ICBAPS 2018
Country/TerritoryMalaysia
CityKuching, Sarawak
Period24/07/1826/07/18

Keywords

  • biomechanics
  • external fixato r
  • finite element
  • micromovement
  • pilon fracture
  • stainless steel
  • titanium alloy

Fingerprint

Dive into the research topics of 'Biomechanical analysis of different material of delta external fixator for ankle joint - The effect of standing'. Together they form a unique fingerprint.

Cite this