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Practical considerations for volumetric wear analysis of explanted hip arthroplasties

OBJECTIVES: Wear debris released from bearing surfaces has been shown to provoke negative immune responses in the recipient. Excessive wear has been linked to early failure of prostheses. Analysis using coordinate measuring machines (CMMs) can provide estimates of total volumetric material loss of e...

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Autores principales: Langton, D. J., Sidaginamale, R. P., Holland, J. P., Deehan, D., Joyce, T. J., Nargol, A. V. F., Meek, R. D., Lord, J. K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: British Editorial Society of Bone and Joint Surgery 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4182907/
https://www.ncbi.nlm.nih.gov/pubmed/24627327
http://dx.doi.org/10.1302/2046-3758.33.2000249
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author Langton, D. J.
Sidaginamale, R. P.
Holland, J. P.
Deehan, D.
Joyce, T. J.
Nargol, A. V. F.
Meek, R. D.
Lord, J. K.
author_facet Langton, D. J.
Sidaginamale, R. P.
Holland, J. P.
Deehan, D.
Joyce, T. J.
Nargol, A. V. F.
Meek, R. D.
Lord, J. K.
author_sort Langton, D. J.
collection PubMed
description OBJECTIVES: Wear debris released from bearing surfaces has been shown to provoke negative immune responses in the recipient. Excessive wear has been linked to early failure of prostheses. Analysis using coordinate measuring machines (CMMs) can provide estimates of total volumetric material loss of explanted prostheses and can help to understand device failure. The accuracy of volumetric testing has been debated, with some investigators stating that only protocols involving hundreds of thousands of measurement points are sufficient. We looked to examine this assumption and to apply the findings to the clinical arena. METHODS: We examined the effects on the calculated material loss from a ceramic femoral head when different CMM scanning parameters were used. Calculated wear volumes were compared with gold standard gravimetric tests in a blinded study. RESULTS: Various scanning parameters including point pitch, maximum point to point distance, the number of scanning contours or the total number of points had no clinically relevant effect on volumetric wear calculations. Gravimetric testing showed that material loss can be calculated to provide clinically relevant degrees of accuracy. CONCLUSIONS: Prosthetic surfaces can be analysed accurately and rapidly with currently available technologies. Given these results, we believe that routine analysis of explanted hip components would be a feasible and logical extension to National Joint Registries. Cite this article: Bone Joint Res 2014;3:60–8.
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spelling pubmed-41829072014-10-17 Practical considerations for volumetric wear analysis of explanted hip arthroplasties Langton, D. J. Sidaginamale, R. P. Holland, J. P. Deehan, D. Joyce, T. J. Nargol, A. V. F. Meek, R. D. Lord, J. K. Bone Joint Res Arthroplasty OBJECTIVES: Wear debris released from bearing surfaces has been shown to provoke negative immune responses in the recipient. Excessive wear has been linked to early failure of prostheses. Analysis using coordinate measuring machines (CMMs) can provide estimates of total volumetric material loss of explanted prostheses and can help to understand device failure. The accuracy of volumetric testing has been debated, with some investigators stating that only protocols involving hundreds of thousands of measurement points are sufficient. We looked to examine this assumption and to apply the findings to the clinical arena. METHODS: We examined the effects on the calculated material loss from a ceramic femoral head when different CMM scanning parameters were used. Calculated wear volumes were compared with gold standard gravimetric tests in a blinded study. RESULTS: Various scanning parameters including point pitch, maximum point to point distance, the number of scanning contours or the total number of points had no clinically relevant effect on volumetric wear calculations. Gravimetric testing showed that material loss can be calculated to provide clinically relevant degrees of accuracy. CONCLUSIONS: Prosthetic surfaces can be analysed accurately and rapidly with currently available technologies. Given these results, we believe that routine analysis of explanted hip components would be a feasible and logical extension to National Joint Registries. Cite this article: Bone Joint Res 2014;3:60–8. British Editorial Society of Bone and Joint Surgery 2014-03-01 /pmc/articles/PMC4182907/ /pubmed/24627327 http://dx.doi.org/10.1302/2046-3758.33.2000249 Text en ©2014 The British Editorial Society of Bone & Joint Surgery ©2014 The British Editorial Society of Bone & Joint Surgery. This is an open-access article distributed under the terms of the Creative Commons Attributions licence, which permits unrestricted use, distribution, and reproduction in any medium, but not for commercial gain, provided the original author and source are credited.
spellingShingle Arthroplasty
Langton, D. J.
Sidaginamale, R. P.
Holland, J. P.
Deehan, D.
Joyce, T. J.
Nargol, A. V. F.
Meek, R. D.
Lord, J. K.
Practical considerations for volumetric wear analysis of explanted hip arthroplasties
title Practical considerations for volumetric wear analysis of explanted hip arthroplasties
title_full Practical considerations for volumetric wear analysis of explanted hip arthroplasties
title_fullStr Practical considerations for volumetric wear analysis of explanted hip arthroplasties
title_full_unstemmed Practical considerations for volumetric wear analysis of explanted hip arthroplasties
title_short Practical considerations for volumetric wear analysis of explanted hip arthroplasties
title_sort practical considerations for volumetric wear analysis of explanted hip arthroplasties
topic Arthroplasty
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4182907/
https://www.ncbi.nlm.nih.gov/pubmed/24627327
http://dx.doi.org/10.1302/2046-3758.33.2000249
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