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Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis

The total replacement of wrists affected by rheumatoid arthritis (RA) has had mixed outcomes in terms of failure rates. This study was therefore conducted to analyse the biomechanics of wrist arthroplasty using recently reported implants that have shown encouraging results with the aim of providing...

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Main Authors: Bajuri, Mohd. Nazri, Abdul Kadir, Mohammed Rafiq, Murali, Malliga Raman, Tunku Zainol Abidin, Tunku Kamarul Zaman
Format: Article
Published: International Federation for Medical and Biological Engineering 2013
Subjects:
R Medicine
Online Access:http://eprints.utm.my/id/eprint/50544/
http://dx.doi.org/10.1007/s11517-012-0982-9
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spelling my.utm.505442018-11-30T06:55:36Z http://eprints.utm.my/id/eprint/50544/ Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis Bajuri, Mohd. Nazri Abdul Kadir, Mohammed Rafiq Murali, Malliga Raman Tunku Zainol Abidin, Tunku Kamarul Zaman R Medicine The total replacement of wrists affected by rheumatoid arthritis (RA) has had mixed outcomes in terms of failure rates. This study was therefore conducted to analyse the biomechanics of wrist arthroplasty using recently reported implants that have shown encouraging results with the aim of providing some insights for the future development of wrist implants. A model of a healthy wrist was developed using computed tomography images from a healthy volunteer. An RA model was simulated based on all ten general characteristics of the disease. The ReMotion ™ total wrist system was then modelled to simulate total wrist arthroplasty (TWA). Finite element analysis was performed with loads simulating the static hand grip action. The results show that the RA model produced distorted patterns of stress distribution with tenfold higher contact pressure than the healthy model. For the TWA model, contact pressure was found to be approximately fivefold lower than the RA model. Compared to the healthy model, significant improvements were observed for the TWA model with minor variations in the stress distribution. In conclusion, the modelled TWA reduced contact pressure between bones but did not restore the stress distribution to the normal healthy condition. International Federation for Medical and Biological Engineering 2013 Article PeerReviewed Bajuri, Mohd. Nazri and Abdul Kadir, Mohammed Rafiq and Murali, Malliga Raman and Tunku Zainol Abidin, Tunku Kamarul Zaman (2013) Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis. Medical and Biological Engineering and Computing, 51 (1-2). pp. 175-186. ISSN 0140-0118 http://dx.doi.org/10.1007/s11517-012-0982-9 DOI: 10.1007/s11517-012-0982-9
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic R Medicine
spellingShingle R Medicine
Bajuri, Mohd. Nazri
Abdul Kadir, Mohammed Rafiq
Murali, Malliga Raman
Tunku Zainol Abidin, Tunku Kamarul Zaman
Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis
description The total replacement of wrists affected by rheumatoid arthritis (RA) has had mixed outcomes in terms of failure rates. This study was therefore conducted to analyse the biomechanics of wrist arthroplasty using recently reported implants that have shown encouraging results with the aim of providing some insights for the future development of wrist implants. A model of a healthy wrist was developed using computed tomography images from a healthy volunteer. An RA model was simulated based on all ten general characteristics of the disease. The ReMotion ™ total wrist system was then modelled to simulate total wrist arthroplasty (TWA). Finite element analysis was performed with loads simulating the static hand grip action. The results show that the RA model produced distorted patterns of stress distribution with tenfold higher contact pressure than the healthy model. For the TWA model, contact pressure was found to be approximately fivefold lower than the RA model. Compared to the healthy model, significant improvements were observed for the TWA model with minor variations in the stress distribution. In conclusion, the modelled TWA reduced contact pressure between bones but did not restore the stress distribution to the normal healthy condition.
format Article
author Bajuri, Mohd. Nazri
Abdul Kadir, Mohammed Rafiq
Murali, Malliga Raman
Tunku Zainol Abidin, Tunku Kamarul Zaman
author_facet Bajuri, Mohd. Nazri
Abdul Kadir, Mohammed Rafiq
Murali, Malliga Raman
Tunku Zainol Abidin, Tunku Kamarul Zaman
author_sort Bajuri, Mohd. Nazri
title Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis
title_short Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis
title_full Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis
title_fullStr Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis
title_full_unstemmed Biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis
title_sort biomechanical analysis of the wrist arthroplasty in rheumatoid arthritis: a finite element analysis
publisher International Federation for Medical and Biological Engineering
publishDate 2013
url http://eprints.utm.my/id/eprint/50544/
http://dx.doi.org/10.1007/s11517-012-0982-9
_version_ 1643652806777765888
score 13.211869

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