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dc.contributor.authorMalandrino, Andrea
dc.contributor.authorHellmich, Christian
dc.contributor.authorRedl, Heinz
dc.contributor.authorNoailly, Jérôme
dc.contributor.authorLacroix, Damien Jerome
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2013-03-11T11:07:15Z
dc.date.available2013-03-11T11:07:15Z
dc.date.created2011
dc.date.issued2011
dc.identifier.citationMalandrino, A. [et al.]. A micro-macro evaluation of the vertebral bony endplate permeability based on computational fluid dynamics. A: International Society of Biomechanics (ISB). Congress. "Proceedings of the XXIIIrd Congress of the International Society of Biomechanics (ISB)". Brussels: 2011.
dc.identifier.urihttp://hdl.handle.net/2117/18167
dc.description.abstractThe intrinsic permeability is an important parameter that describes the resistance of a porous structure to fluid flo w. It has a key role in poroelastic finite element models of spinal segments, especially at the vertebral endplate, i.e. the interface between intervertebral disc and vertebra. In the understanding of the properties of the complex endplate system, an expli cit evaluation for permeability of subchondral bone is missing. Thus, a new method wa s proposed to evaluate the intrinsic permeability of the bony endplate. CT - based reconstruction s of the bony endplate from a lumbar vertebra were analyzed using computational fluid dynamics , and the i ntrinsic permeability and porosity of the structure were calculated. Results showed that the permeability did not depend on the fluid flow direction, and was statistically similar for both the superior and inferior endplates . Permeability values varied within the range of trabecular bone, while porosity values w ere lower than trabecular bone characteristic values. Finally, i ntrins ic permeability correlated well with porosity through the Kozeny - Karman model, which offer s perspectives for parametric studies involving degenerative or age - related changes at the disc - bone interface.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshBiomechanics
dc.titleA micro-macro evaluation of the vertebral bony endplate permeability based on computational fluid dynamics
dc.typeConference report
dc.subject.lemacBiomecànica
dc.rights.accessOpen Access
local.identifier.drac11687861
dc.description.versionPostprint (published version)
local.citation.authorMalandrino, A.; Hellmich, C.; Redl, H.; Noailly, J.; Damien, D.
local.citation.contributorInternational Society of Biomechanics (ISB). Congress
local.citation.pubplaceBrussels
local.citation.publicationNameProceedings of the XXIIIrd Congress of the International Society of Biomechanics (ISB)


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