Matches in SemOpenAlex for { <https://semopenalex.org/work/W2279388093> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2279388093 endingPage "8770" @default.
- W2279388093 startingPage "8765" @default.
- W2279388093 abstract "BACKGROUND: Histomorphological change of endplate may affect the nutritional transmission of intervertebral disk, eventually leading to intervertebral disc degeneration.OBJECTIVE: To observe the effects of endplate concavity variation on mechanical response of lumbar motion segment DESIGN, TIME AND SETTING: Repeated measurement design, biomechanical analysis of finite element models, performed at the Laboratory of Biomechanics, Department of Orthopedics, the Second Affiliated Hospital of Medical College of Zhejiang University between January 2005 and January 2007.MATERIALS: SOMATOM SENSATION 16 spiral CT machine (Siemens, German) and ANSYS (Inc. Pennsylvania, USA).METHODS: A three-dimensional nonlinear geometrical and mechanical accurate finite element model of lumbar L(subscript 4-5) segment was developed. Parametric studies were undertaken by studying endplate of three different concave angles, whereas disc angle, the gap of facet joint, finite element mesh density, and all other parameters were kept constant. Biomechanical parameters of three kinds of finite element models were tested under 5 different loading conditions, including vertical compression, flexion, extension, and anterior and posterior shearing loading.MAIN OUTCOME MEASURES: Endplate-intervertebral disc interface strain, intervertebral disc stiffness, nucleus pulposus pressure, annular fiber stress, radial disc bulge, stress in the annulus ground substance, stresses in posterior structure and facet contact force.RESULTS: The decrease in the endplate concavity stimulated by an increasing endplate concave angle would result in decreased strains of endplate-intervertebral disc interface, increased disc stiffness and nucleus pulposus pressure, decreased annular fiber stress, radial disc bulge and stress in the annulus ground substance, and simultaneously produce decreased facet contact force and stresses in posterior structure.CONCLUSION: The decrease of endplate concavity enhances the protective effects of the disc on vertebral body breakage. Small endplate deformation results from decreased endplate concavity would contribute to the reduction of nutritional diffusion to the intervertebral disc." @default.
- W2279388093 created "2016-06-24" @default.
- W2279388093 creator A5001441136 @default.
- W2279388093 creator A5017565565 @default.
- W2279388093 creator A5042804899 @default.
- W2279388093 date "2008-10-28" @default.
- W2279388093 modified "2023-09-28" @default.
- W2279388093 title "Endplate Concavity Variation of Lumbar Motion Segments a Finite Element Analysis" @default.
- W2279388093 hasPublicationYear "2008" @default.
- W2279388093 type Work @default.
- W2279388093 sameAs 2279388093 @default.
- W2279388093 citedByCount "0" @default.
- W2279388093 crossrefType "journal-article" @default.
- W2279388093 hasAuthorship W2279388093A5001441136 @default.
- W2279388093 hasAuthorship W2279388093A5017565565 @default.
- W2279388093 hasAuthorship W2279388093A5042804899 @default.
- W2279388093 hasConcept C105702510 @default.
- W2279388093 hasConcept C121332964 @default.
- W2279388093 hasConcept C127413603 @default.
- W2279388093 hasConcept C135628077 @default.
- W2279388093 hasConcept C136229726 @default.
- W2279388093 hasConcept C150936888 @default.
- W2279388093 hasConcept C15744967 @default.
- W2279388093 hasConcept C159985019 @default.
- W2279388093 hasConcept C170700871 @default.
- W2279388093 hasConcept C187288502 @default.
- W2279388093 hasConcept C192562407 @default.
- W2279388093 hasConcept C2775871850 @default.
- W2279388093 hasConcept C2777755357 @default.
- W2279388093 hasConcept C2779372316 @default.
- W2279388093 hasConcept C2865642 @default.
- W2279388093 hasConcept C3018239782 @default.
- W2279388093 hasConcept C43122875 @default.
- W2279388093 hasConcept C44575665 @default.
- W2279388093 hasConcept C57879066 @default.
- W2279388093 hasConcept C66938386 @default.
- W2279388093 hasConcept C71924100 @default.
- W2279388093 hasConcept C77805123 @default.
- W2279388093 hasConceptScore W2279388093C105702510 @default.
- W2279388093 hasConceptScore W2279388093C121332964 @default.
- W2279388093 hasConceptScore W2279388093C127413603 @default.
- W2279388093 hasConceptScore W2279388093C135628077 @default.
- W2279388093 hasConceptScore W2279388093C136229726 @default.
- W2279388093 hasConceptScore W2279388093C150936888 @default.
- W2279388093 hasConceptScore W2279388093C15744967 @default.
- W2279388093 hasConceptScore W2279388093C159985019 @default.
- W2279388093 hasConceptScore W2279388093C170700871 @default.
- W2279388093 hasConceptScore W2279388093C187288502 @default.
- W2279388093 hasConceptScore W2279388093C192562407 @default.
- W2279388093 hasConceptScore W2279388093C2775871850 @default.
- W2279388093 hasConceptScore W2279388093C2777755357 @default.
- W2279388093 hasConceptScore W2279388093C2779372316 @default.
- W2279388093 hasConceptScore W2279388093C2865642 @default.
- W2279388093 hasConceptScore W2279388093C3018239782 @default.
- W2279388093 hasConceptScore W2279388093C43122875 @default.
- W2279388093 hasConceptScore W2279388093C44575665 @default.
- W2279388093 hasConceptScore W2279388093C57879066 @default.
- W2279388093 hasConceptScore W2279388093C66938386 @default.
- W2279388093 hasConceptScore W2279388093C71924100 @default.
- W2279388093 hasConceptScore W2279388093C77805123 @default.
- W2279388093 hasIssue "44" @default.
- W2279388093 hasLocation W22793880931 @default.
- W2279388093 hasOpenAccess W2279388093 @default.
- W2279388093 hasPrimaryLocation W22793880931 @default.
- W2279388093 hasRelatedWork W2008240914 @default.
- W2279388093 hasRelatedWork W2015383208 @default.
- W2279388093 hasRelatedWork W2054598686 @default.
- W2279388093 hasRelatedWork W2100078508 @default.
- W2279388093 hasRelatedWork W2134381361 @default.
- W2279388093 hasRelatedWork W2312458499 @default.
- W2279388093 hasRelatedWork W2313767887 @default.
- W2279388093 hasRelatedWork W2354611737 @default.
- W2279388093 hasRelatedWork W2360241291 @default.
- W2279388093 hasRelatedWork W2367568738 @default.
- W2279388093 hasRelatedWork W2375507208 @default.
- W2279388093 hasRelatedWork W2381157118 @default.
- W2279388093 hasRelatedWork W2402689869 @default.
- W2279388093 hasRelatedWork W2410603330 @default.
- W2279388093 hasRelatedWork W245415929 @default.
- W2279388093 hasRelatedWork W2527410001 @default.
- W2279388093 hasRelatedWork W2770786738 @default.
- W2279388093 hasRelatedWork W2804107327 @default.
- W2279388093 hasRelatedWork W3028680780 @default.
- W2279388093 hasRelatedWork W3153784816 @default.
- W2279388093 hasVolume "12" @default.
- W2279388093 isParatext "false" @default.
- W2279388093 isRetracted "false" @default.
- W2279388093 magId "2279388093" @default.
- W2279388093 workType "article" @default.