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

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

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dc.contributor.author Burgos, F.
dc.contributor.author Mengelle, D.E.
dc.contributor.author Ozols, A.
dc.contributor.author Fernandez, C.
dc.contributor.author Autorino, C.M
dc.date.accessioned 2019-11-21T21:35:04Z
dc.date.available 2019-11-21T21:35:04Z
dc.date.issued 2016-11-03
dc.identifier.citation Bone & Joint ResearchVolume 5, Issue 11, November 2016, Pages 531-537 en_US
dc.identifier.issn 2046-3758
dc.identifier.uri https://riu.austral.edu.ar/handle/123456789/784
dc.description.abstract 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. en_US
dc.language.iso en en_US
dc.publisher British Editorial Society of Bone and Joint Surgery en_US
dc.subject Squeaking en_US
dc.subject Damping en_US
dc.subject Cement en_US
dc.title The damping effect of cement as a potential mitigation factor of squeaking in ceramic-on-ceramic total hip arthroplasty en_US
dc.type Article en_US


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