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Lumbar and cervical viscoelastic disc replacement: Concepts and current experience

The ideal lumbar and cervical discs should provide six degrees of freedom and tri-planar (three-dimensional) motion. Although all artificial discs are intended to achieve the same goals, there is considerable heterogeneity in the design of lumbar and cervical implants. The “second generation total d...

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Autor principal: Lazennec, Jean Yves
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Baishideng Publishing Group Inc 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7448204/
https://www.ncbi.nlm.nih.gov/pubmed/32904082
http://dx.doi.org/10.5312/wjo.v11.i8.345
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author Lazennec, Jean Yves
author_facet Lazennec, Jean Yves
author_sort Lazennec, Jean Yves
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description The ideal lumbar and cervical discs should provide six degrees of freedom and tri-planar (three-dimensional) motion. Although all artificial discs are intended to achieve the same goals, there is considerable heterogeneity in the design of lumbar and cervical implants. The “second generation total disc replacements” are non-articulating viscoelastic implants aiming at the reconstruction of physiologic levels of shock absorption and flexural stiffness. This review aims to give an overview of the available implants detailing the concepts and the functional results experimentally and clinically. These monobloc prostheses raise new challenges concerning the choice of materials for the constitution of the viscoelastic cushion, the connection between the components of the internal structure and the metal endplates and even the bone anchoring mode. New objectives concerning the quality of movement and mobility control must be defined.
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spelling pubmed-74482042020-09-04 Lumbar and cervical viscoelastic disc replacement: Concepts and current experience Lazennec, Jean Yves World J Orthop Review The ideal lumbar and cervical discs should provide six degrees of freedom and tri-planar (three-dimensional) motion. Although all artificial discs are intended to achieve the same goals, there is considerable heterogeneity in the design of lumbar and cervical implants. The “second generation total disc replacements” are non-articulating viscoelastic implants aiming at the reconstruction of physiologic levels of shock absorption and flexural stiffness. This review aims to give an overview of the available implants detailing the concepts and the functional results experimentally and clinically. These monobloc prostheses raise new challenges concerning the choice of materials for the constitution of the viscoelastic cushion, the connection between the components of the internal structure and the metal endplates and even the bone anchoring mode. New objectives concerning the quality of movement and mobility control must be defined. Baishideng Publishing Group Inc 2020-08-18 /pmc/articles/PMC7448204/ /pubmed/32904082 http://dx.doi.org/10.5312/wjo.v11.i8.345 Text en ©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved. http://creativecommons.org/licenses/by-nc/4.0/ This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.
spellingShingle Review
Lazennec, Jean Yves
Lumbar and cervical viscoelastic disc replacement: Concepts and current experience
title Lumbar and cervical viscoelastic disc replacement: Concepts and current experience
title_full Lumbar and cervical viscoelastic disc replacement: Concepts and current experience
title_fullStr Lumbar and cervical viscoelastic disc replacement: Concepts and current experience
title_full_unstemmed Lumbar and cervical viscoelastic disc replacement: Concepts and current experience
title_short Lumbar and cervical viscoelastic disc replacement: Concepts and current experience
title_sort lumbar and cervical viscoelastic disc replacement: concepts and current experience
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7448204/
https://www.ncbi.nlm.nih.gov/pubmed/32904082
http://dx.doi.org/10.5312/wjo.v11.i8.345
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