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The Role of Trabecular, Ligamentous-Intervertebral Disk and Facet Joints Systemss: A Finite Element Analysis in the L4-S1 Vertebrae

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dc.creatorLaverde-Frade L.spa
dc.creatorMadriñan-Navia H.spa
dc.creatorVélez-Muriel M.spa
dc.creatorPinzón BF.spa
dc.creatorSanchez-Quinones P.spa
dc.creatorGuerrero Vargas, Jose Alejandrospa
dc.date.accessioned2025-07-21T16:54:42Z
dc.date.available2025-07-21T16:54:42Z
dc.date.created2025-03-01spa
dc.date.issued2025-03-01spa
dc.description.abstractObjectives: Trabecular bone in the vertebrae is critical for the distribution of load and stress throughout the neuroaxis, as well as the intervertebral disk, ligamentous complex, and facet joints. The objective was to assess the stress and strain distribution of the L4-S1 spine segment by a finite element analysis. Methods: A lumbosacral spine model was built based on a CT-Scan. Trabecular-to-cortical bone distribution, ligaments, intervertebral disk, and facet joints with cartilage were included. A perpendicular force was applied over the L4 upper terminal plate of 300 N, 460 N and 600 N in neutral, plus 5 Nm and 7.5 Nm for flexion and extension movements. Maximum principal stress and total deformation were the main studied variables. Results: Trabecular bone confers resistance to axial loads on the vertebrae by elastic capacity and stress distribution. MPS and TD showed axial stress attenuation in the nucleus pulposus and longitudinal ligaments, as well as load distribution capacity. Facet joints and discontinuous ligaments showed greater TD values in flexion moments but greater MPS values in extension, conferring stability to the lumbosacral junction and axial load distribution. Conclusion: We propose 3 anatomical systems for axial load distribution and stress attenuation in the lumbosacral junction.Trabecular bone distributes loads, while the ligamentous-intervertebral disk transmits and attenuate axial stress. Facet joints and discontinuous ligaments act as stabilizers for flexion and extension postures. Overall, the relationship between trabecular bone, ligamentous-intervertebral disk complex and facet joints is necessary for an efficient load distribution and segmental axial stress reduction.eng
dc.format.mimetypeapplication/pdfspa
dc.identifier.doihttps://doi.org/10.1177/21925682241231525spa
dc.identifier.issn2192-5682spa
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/46113
dc.language.isoengspa
dc.publisherSagespa
dc.relation.ispartofGlobal Spine Mar;15(2):1212-1228spa
dc.relation.urihttps://pmc.ncbi.nlm.nih.gov/articles/PMC11571555/pdf/10.1177_21925682241231525.pdfspa
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalspa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccessspa
dc.rights.accesoAbierto (Texto Completo)spa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/spa
dc.sourceGlobal Spinespa
dc.source.instnameinstname:Universidad del Rosariospa
dc.source.reponamereponame:Repositorio Institucional EdocURspa
dc.subject.keywordBiomechanicseng
dc.subject.keywordFinite element analysiseng
dc.subject.keywordLumbar vertebraeeng
dc.subject.keywordLumbosacral regioneng
dc.subject.keywordTrabecular boneeng
dc.titleThe Role of Trabecular, Ligamentous-Intervertebral Disk and Facet Joints Systemss: A Finite Element Analysis in the L4-S1 Vertebraespa
dc.typearticlespa
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersionspa
dc.type.spaArtículo de Investigaciónspa
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