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Failure analysis of retrieved UHMWPE tibial insert in total knee replacement

This study involves the failure analysis of an ultra high molecular polyethylene (UHMWPE) tibial insert from Apollo Total Knee System, which was removed after 10 years of service from 70 years old female patient. The tibial insert was investigated by using a stereoscope, scanning electron microscope...

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Main Authors: Liza, S., Haseeb, A.S. Md. Abdul, Abbas, A.A., Masjuki, Haji Hassan
Format: Article
Published: 2011
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/5492/
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spelling my.um.eprints.54922018-10-17T01:04:53Z http://eprints.um.edu.my/5492/ Failure analysis of retrieved UHMWPE tibial insert in total knee replacement Liza, S. Haseeb, A.S. Md. Abdul Abbas, A.A. Masjuki, Haji Hassan TA Engineering (General). Civil engineering (General) This study involves the failure analysis of an ultra high molecular polyethylene (UHMWPE) tibial insert from Apollo Total Knee System, which was removed after 10 years of service from 70 years old female patient. The tibial insert was investigated by using a stereoscope, scanning electron microscope (SEM), infinite focus microscope (IFM) and energy disperse spectroscopy (EDS) to characterize the morphology and composition of the bearing surface. Differential scanning calorimetry (DSC) and Fourier transform spectroscopy (FTIR) were employed to characterize the degradation and crystallinity of the component. Gel-permeation chromatography (GPC) was used to measure the polyethylene tibial insert molecular weight. Results showed that the failure of total knee replacement (TKR) was associated with high grade wear and oxidation degradation. Surface delamination, scratch marks, pitting, folding, and embedded third body particles were observed on the retrieved UHMWPE tibial surface. Pit depth as large as 60 mu m was measured on the surface. The damage features observed on the UHMWPE tibial insert suggested degradation is due to fatigue related wear and is oxidation-induced. Overall results show that the UHMWPE tibial insert which was retrieved from a patient who is active and but not overweight underwent degradation of material properties and high grade wear during 10 years of service. (C) 2011 Elsevier Ltd. All rights reserved. 2011 Article PeerReviewed Liza, S. and Haseeb, A.S. Md. Abdul and Abbas, A.A. and Masjuki, Haji Hassan (2011) Failure analysis of retrieved UHMWPE tibial insert in total knee replacement. Engineering Failure Analysis, 18 (6). pp. 1415-1423. ISSN 1350-6307
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Liza, S.
Haseeb, A.S. Md. Abdul
Abbas, A.A.
Masjuki, Haji Hassan
Failure analysis of retrieved UHMWPE tibial insert in total knee replacement
description This study involves the failure analysis of an ultra high molecular polyethylene (UHMWPE) tibial insert from Apollo Total Knee System, which was removed after 10 years of service from 70 years old female patient. The tibial insert was investigated by using a stereoscope, scanning electron microscope (SEM), infinite focus microscope (IFM) and energy disperse spectroscopy (EDS) to characterize the morphology and composition of the bearing surface. Differential scanning calorimetry (DSC) and Fourier transform spectroscopy (FTIR) were employed to characterize the degradation and crystallinity of the component. Gel-permeation chromatography (GPC) was used to measure the polyethylene tibial insert molecular weight. Results showed that the failure of total knee replacement (TKR) was associated with high grade wear and oxidation degradation. Surface delamination, scratch marks, pitting, folding, and embedded third body particles were observed on the retrieved UHMWPE tibial surface. Pit depth as large as 60 mu m was measured on the surface. The damage features observed on the UHMWPE tibial insert suggested degradation is due to fatigue related wear and is oxidation-induced. Overall results show that the UHMWPE tibial insert which was retrieved from a patient who is active and but not overweight underwent degradation of material properties and high grade wear during 10 years of service. (C) 2011 Elsevier Ltd. All rights reserved.
format Article
author Liza, S.
Haseeb, A.S. Md. Abdul
Abbas, A.A.
Masjuki, Haji Hassan
author_facet Liza, S.
Haseeb, A.S. Md. Abdul
Abbas, A.A.
Masjuki, Haji Hassan
author_sort Liza, S.
title Failure analysis of retrieved UHMWPE tibial insert in total knee replacement
title_short Failure analysis of retrieved UHMWPE tibial insert in total knee replacement
title_full Failure analysis of retrieved UHMWPE tibial insert in total knee replacement
title_fullStr Failure analysis of retrieved UHMWPE tibial insert in total knee replacement
title_full_unstemmed Failure analysis of retrieved UHMWPE tibial insert in total knee replacement
title_sort failure analysis of retrieved uhmwpe tibial insert in total knee replacement
publishDate 2011
url http://eprints.um.edu.my/5492/
_version_ 1643687591362428928
score 13.211869

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