000008874 001__ 8874
000008874 005__ 20141204083528.0
000008874 04107 $$aeng
000008874 046__ $$k12/05/2014
000008874 100__ $$aSant, Z.
000008874 24500 $$aMICROMECHANICS APPLIED TO MACRO-MODEL OF A SPINAL SEGMENT

000008874 24630 $$n20.$$pEngineering Mechanics 2014
000008874 260__ $$bBrno University of Technology- Institute of Solid Mechanics, Mechatronics and Biomechanics
000008874 506__ $$arestricted
000008874 520__ $$2eng$$aSpinal segments, with the complexity of spinal activities, call for a better understanding of 3Dbiomechanical behaviour to improve the design of spinal implants. The biomechanics of endplates is one of the many areas that are still not fully understood. There are number of factors that might play a role in the biomechanical response of the endplates when the load is transferred from the superior vertebra via endplate and adjacent intervertebral disc to the inferior verterbra. Studies using finite element (FE) models usually present a simplified idealistic isotropic continuum as a bone tissue and cartilage model. This simplification might hinder the real stress-strain distribution at the region of prime interest – the endplate. Multiscale FEM provides the tool to overcome difficulties in simulation of macro model behaviour while considering the micromechanics of bone tissue. The specific patient model, evaluated from CT scans and applied to the existing FE model, gave promising results with the highest stress of 3.1 MPa at the central part of endplate while the model with isotropic continuum presented the highest stress of 1.3 MPa at the lateral side of annulus fibrosus. Results obtained from the patient specific model correspond to known clinical observations of the endplate damage.

000008874 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000008874 653__ $$aSpinal Segment, Finite Element Method, Micromechanics.

000008874 7112_ $$aEngineering Mechanics 2014$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2014
000008874 720__ $$aSant, Z.$$iVella, A.$$iBlanchard, R.$$iHellmich, Ch.
000008874 8560_ $$ffischerc@itam.cas.cz
000008874 8564_ $$s635095$$uhttp://invenio.itam.cas.cz/record/8874/files/128-Sant-CD.pdf$$yOriginal version of the author's contribution as presented on CD, paper No. 128.
000008874 962__ $$r70
000008874 980__ $$aPAPER