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The biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study

Introduction Management of syndesmotic injury is very much open to debate. Controversies aroused in many aspects, and yet no single treatment is considered as gold standard. The surgical management is still evolving. Positional screw has been widely used as a stabilizer while waiting for healing bu...

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Main Authors: Che Ahmad, Aminudin, Perwira, Marazuki, Abdul Rashid, Abdul Halim, Abdul Kadir, Mohammed Rafiq
Format: Conference or Workshop Item
Language:English
English
Published: 2014
Subjects:
RC1200 Sports Medicine
RD701 Orthopedics
Online Access:http://irep.iium.edu.my/41140/1/poster_140.pdf
http://irep.iium.edu.my/41140/3/ACA_Finite_element_AOFAS_eposter.pdf
http://irep.iium.edu.my/41140/
http://www.aofas.org/IFFAS/Meetings/Pages/Meeting.aspx
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spelling my.iium.irep.411402015-02-26T06:39:46Z http://irep.iium.edu.my/41140/ The biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study Che Ahmad, Aminudin Perwira, Marazuki Abdul Rashid, Abdul Halim Abdul Kadir, Mohammed Rafiq RC1200 Sports Medicine RD701 Orthopedics Introduction Management of syndesmotic injury is very much open to debate. Controversies aroused in many aspects, and yet no single treatment is considered as gold standard. The surgical management is still evolving. Positional screw has been widely used as a stabilizer while waiting for healing but the utilization of screw itself is varied. Kirschner wire has been used for temporary stabilizer and the clinical results revealed good outcome. Interosseous suture has emerged as an alternative way in restoring syndesmotic joint function, also with good clinical outcome. We conduct a study to analyse the behaviour of all three implants used in the management of ankle syndesmosis diasthesis. Method Three finite element models, consist of distal half of tibia and fibula with talar bone were developed. The models were completed with sets of ligaments, including interosseous membrane, all syndesmotic ligaments, deep portion of deltoid ligament and lateral collateral ligaments. Verifications were done using three tests, which are axial loading, lateral separation of fibula and anterior drawer test of the talus. Once all ligaments has been verified, syndesmotic ligaments were removed and exchanged with implants. 600N axial loading was applied and the behaviour of syndesmotic movement recorded. Result Models with positional screw and two parallel Kirschner wire recorded very minimal syndesmotic joint movement, which are 0.03mm and 0.04mm respectively, after given 600N axial load. The model with interosseous suture recorded 2.1mm fibula movement in relation to tibia after given 180N axial load, and further 4.4mm after 600N axial load applied. Conclusion 3.5mm positional screw and two parallel Kirschner wire will result in stable but rigid fixation to the syndesmotic joint with axial loading. Interosseous suture will allow normal physiological movement of syndesmotic joint up to 180N before diasthesis occur. 2014 Conference or Workshop Item REM application/pdf en http://irep.iium.edu.my/41140/1/poster_140.pdf application/pdf en http://irep.iium.edu.my/41140/3/ACA_Finite_element_AOFAS_eposter.pdf Che Ahmad, Aminudin and Perwira, Marazuki and Abdul Rashid, Abdul Halim and Abdul Kadir, Mohammed Rafiq (2014) The biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study. In: International Federation of Foot & Ankle Societies (IFFAS) and American Orthopaedic Foot & Ankle Society (AOFAS) Meeting, 19-23 September 2014, Chicago, IIIinois USA. http://www.aofas.org/IFFAS/Meetings/Pages/Meeting.aspx
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
English
topic RC1200 Sports Medicine
RD701 Orthopedics
spellingShingle RC1200 Sports Medicine
RD701 Orthopedics
Che Ahmad, Aminudin
Perwira, Marazuki
Abdul Rashid, Abdul Halim
Abdul Kadir, Mohammed Rafiq
The biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study
description Introduction Management of syndesmotic injury is very much open to debate. Controversies aroused in many aspects, and yet no single treatment is considered as gold standard. The surgical management is still evolving. Positional screw has been widely used as a stabilizer while waiting for healing but the utilization of screw itself is varied. Kirschner wire has been used for temporary stabilizer and the clinical results revealed good outcome. Interosseous suture has emerged as an alternative way in restoring syndesmotic joint function, also with good clinical outcome. We conduct a study to analyse the behaviour of all three implants used in the management of ankle syndesmosis diasthesis. Method Three finite element models, consist of distal half of tibia and fibula with talar bone were developed. The models were completed with sets of ligaments, including interosseous membrane, all syndesmotic ligaments, deep portion of deltoid ligament and lateral collateral ligaments. Verifications were done using three tests, which are axial loading, lateral separation of fibula and anterior drawer test of the talus. Once all ligaments has been verified, syndesmotic ligaments were removed and exchanged with implants. 600N axial loading was applied and the behaviour of syndesmotic movement recorded. Result Models with positional screw and two parallel Kirschner wire recorded very minimal syndesmotic joint movement, which are 0.03mm and 0.04mm respectively, after given 600N axial load. The model with interosseous suture recorded 2.1mm fibula movement in relation to tibia after given 180N axial load, and further 4.4mm after 600N axial load applied. Conclusion 3.5mm positional screw and two parallel Kirschner wire will result in stable but rigid fixation to the syndesmotic joint with axial loading. Interosseous suture will allow normal physiological movement of syndesmotic joint up to 180N before diasthesis occur.
format Conference or Workshop Item
author Che Ahmad, Aminudin
Perwira, Marazuki
Abdul Rashid, Abdul Halim
Abdul Kadir, Mohammed Rafiq
author_facet Che Ahmad, Aminudin
Perwira, Marazuki
Abdul Rashid, Abdul Halim
Abdul Kadir, Mohammed Rafiq
author_sort Che Ahmad, Aminudin
title The biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study
title_short The biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study
title_full The biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study
title_fullStr The biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study
title_full_unstemmed The biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study
title_sort biomechanics of various fixations for syndesmotic joint diasthesis: a finite element study
publishDate 2014
url http://irep.iium.edu.my/41140/1/poster_140.pdf
http://irep.iium.edu.my/41140/3/ACA_Finite_element_AOFAS_eposter.pdf
http://irep.iium.edu.my/41140/
http://www.aofas.org/IFFAS/Meetings/Pages/Meeting.aspx
_version_ 1643611961278070784
score 13.211869

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