000064372 001__ 64372
000064372 005__ 20190709135624.0
000064372 0247_ $$2doi$$a10.1371/journal.pone.0188328
000064372 0248_ $$2sideral$$a103582
000064372 037__ $$aART-2017-103582
000064372 041__ $$aeng
000064372 100__ $$aMás, Y.
000064372 245__ $$aFinite element simulation and clinical followup of lumbar spine biomechanics with dynamic fixations
000064372 260__ $$c2017
000064372 5060_ $$aAccess copy available to the general public$$fUnrestricted
000064372 5203_ $$aArthrodesis is a recommended treatment in advanced stages of degenerative disc disease. Despite dynamic fixations were designed to prevent abnormal motions with better physiological load transmission, improving lumbar pain and reducing stress on adjacent segments, contradictory results have been obtained. This study was designed to compare differences in the biomechanical behaviour between the healthy lumbar spine and the spine with DYNESYS and DIAM fixation, respectively, at L4-L5 level. Behaviour under flexion, extension, lateral bending and axial rotation are compared using healthy lumbar spine as reference. Three 3D finite element models of lumbar spine (healthy, DYNESYS and DIAM implemented, respectively) were developed, together a clinical follow-up of 58 patients operated on for degenerative disc disease. DYNESYS produced higher variations of motion with a maximum value for lateral bending, decreasing intradiscal pressure and facet joint forces at instrumented level, whereas screw insertion zones concentrated stress. DIAM increased movement during flexion, decreased it in another three movements, and produced stress concentration at the apophyses at instrumented level. Dynamic systems, used as single systems without vertebral fusion, could be a good alternative to degenerative disc disease for grade II and grade III of Pfirrmann.
000064372 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000064372 590__ $$a2.766$$b2017
000064372 591__ $$aMULTIDISCIPLINARY SCIENCES$$b15 / 64 = 0.234$$c2017$$dQ1$$eT1
000064372 592__ $$a1.164$$b2017
000064372 593__ $$aAgricultural and Biological Sciences (miscellaneous)$$c2017$$dQ1
000064372 593__ $$aMedicine (miscellaneous)$$c2017$$dQ1
000064372 593__ $$aBiochemistry, Genetics and Molecular Biology (miscellaneous)$$c2017$$dQ1
000064372 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000064372 700__ $$0(orcid)0000-0001-7944-9625$$aGracia, L.$$uUniversidad de Zaragoza
000064372 700__ $$0(orcid)0000-0003-0785-4132$$aIbarz, E.$$uUniversidad de Zaragoza
000064372 700__ $$0(orcid)0000-0002-2934-1525$$aGabarre, S.
000064372 700__ $$aPeña, D.
000064372 700__ $$0(orcid)0000-0002-8643-7558$$aHerrera, A.$$uUniversidad de Zaragoza
000064372 7102_ $$11004$$2830$$aUniversidad de Zaragoza$$bDpto. Cirugía,Ginecol.Obstetr.$$cÁrea Traumatología y Ortopedia
000064372 7102_ $$15004$$2605$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Mec.Med.Cont. y Teor.Est.
000064372 773__ $$g12, 11 (2017), e0188328 [19pp]$$pPLoS One$$tPloS one$$x1932-6203
000064372 8564_ $$s284926$$uhttps://zaguan.unizar.es/record/64372/files/texto_completo.pdf$$yVersión publicada
000064372 8564_ $$s142427$$uhttps://zaguan.unizar.es/record/64372/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000064372 909CO $$ooai:zaguan.unizar.es:64372$$particulos$$pdriver
000064372 951__ $$a2019-07-09-12:29:50
000064372 980__ $$aARTICLE