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The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty

OBJECTIVES: Studies reporting specifically on squeaking in total hip arthroplasty have focused on cementless, and not on hybrid, fixation. We hypothesised that the cement mantle of the femur might have a damping effect on the sound transmitted through the metal stem. The objective of this study was...

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Autores principales: Burgo, F. J., Mengelle, D. E., Ozols, A., Fernandez, C., Autorino, C. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2016
Materias:
Hip
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5131093/
https://www.ncbi.nlm.nih.gov/pubmed/27811144
http://dx.doi.org/10.1302/2046-3758.511.BJR-2016-0058.R1
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author Burgo, F. J.
Mengelle, D. E.
Ozols, A.
Fernandez, C.
Autorino, C. M.
author_facet Burgo, F. J.
Mengelle, D. E.
Ozols, A.
Fernandez, C.
Autorino, C. M.
author_sort Burgo, F. J.
collection PubMed
description OBJECTIVES: Studies reporting specifically on squeaking in total hip arthroplasty have focused on cementless, and not on hybrid, fixation. We hypothesised that the cement mantle of the femur might have a damping effect on the sound transmitted through the metal stem. The objective of this study was to test the effect of cement on sound propagation along different stem designs and under different fixation conditions. METHODS: An in vitro model for sound detection, composed of a mechanical suspension structure and a sound-registering electronic assembly, was designed. A pulse of sound in the audible range was propagated along bare stems and stems implanted in cadaveric bone femurs with and without cement. Two stems of different alloy and geometry were compared. RESULTS: The magnitudes of the maximum amplitudes of the bare stem were in the range of 10.8 V to 11.8 V, whereas the amplitudes for the same stems with a cement mantle in a cadaveric bone decreased to 0.3 V to 0.7 V, implying a pulse-attenuation efficiency of greater than 97%. The same magnitude is close to 40% when the comparison is made against stems implanted in cadaveric bone femurs without cement. CONCLUSION: The in vitro model presented here has shown that the cement had a remarkable effect on sound attenuation and a strong energy absorption in cement mantle and bone. The visco-elastic properties of cement can contribute to the dissipation of vibro-acoustic energy, thus preventing hip prostheses from squeaking. This could explain, at least in part, the lack of reports of squeaking when hybrid fixation is used. Cite this article: F. J. Burgo, D. E. Mengelle, A. Ozols, C. Fernandez, C. M. Autorino. The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty. Bone Joint Res 2016;5:531–537. DOI: 10.1302/2046-3758.511.BJR-2016-0058.R1.
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spelling pubmed-51310932016-12-09 The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty Burgo, F. J. Mengelle, D. E. Ozols, A. Fernandez, C. Autorino, C. M. Bone Joint Res Hip OBJECTIVES: Studies reporting specifically on squeaking in total hip arthroplasty have focused on cementless, and not on hybrid, fixation. We hypothesised that the cement mantle of the femur might have a damping effect on the sound transmitted through the metal stem. The objective of this study was to test the effect of cement on sound propagation along different stem designs and under different fixation conditions. METHODS: An in vitro model for sound detection, composed of a mechanical suspension structure and a sound-registering electronic assembly, was designed. A pulse of sound in the audible range was propagated along bare stems and stems implanted in cadaveric bone femurs with and without cement. Two stems of different alloy and geometry were compared. RESULTS: The magnitudes of the maximum amplitudes of the bare stem were in the range of 10.8 V to 11.8 V, whereas the amplitudes for the same stems with a cement mantle in a cadaveric bone decreased to 0.3 V to 0.7 V, implying a pulse-attenuation efficiency of greater than 97%. The same magnitude is close to 40% when the comparison is made against stems implanted in cadaveric bone femurs without cement. CONCLUSION: The in vitro model presented here has shown that the cement had a remarkable effect on sound attenuation and a strong energy absorption in cement mantle and bone. The visco-elastic properties of cement can contribute to the dissipation of vibro-acoustic energy, thus preventing hip prostheses from squeaking. This could explain, at least in part, the lack of reports of squeaking when hybrid fixation is used. Cite this article: F. J. Burgo, D. E. Mengelle, A. Ozols, C. Fernandez, C. M. Autorino. The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty. Bone Joint Res 2016;5:531–537. DOI: 10.1302/2046-3758.511.BJR-2016-0058.R1. 2016-12-01 /pmc/articles/PMC5131093/ /pubmed/27811144 http://dx.doi.org/10.1302/2046-3758.511.BJR-2016-0058.R1 Text en © 2016 Burgo et al. This is an open-access article distributed under the terms of the Creative Commons Attributions licence (CC-BY-NC), which permits unrestricted use, distribution, and reproduction in any medium, but not for commercial gain, provided the original author and source are credited.
spellingShingle Hip
Burgo, F. J.
Mengelle, D. E.
Ozols, A.
Fernandez, C.
Autorino, C. M.
The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty
title The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty
title_full The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty
title_fullStr The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty
title_full_unstemmed The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty
title_short The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty
title_sort damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty
topic Hip
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5131093/
https://www.ncbi.nlm.nih.gov/pubmed/27811144
http://dx.doi.org/10.1302/2046-3758.511.BJR-2016-0058.R1
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