Publication detail
Finite Element Analysis of Compression of Lumbar Spine with Dynamic Implant
PRÁŠILOVÁ, E. FLORIAN, Z. MARCIÁN, P.
Czech title
MKP analýza segmentu páteře s dynamickým fixátorem
English title
Finite Element Analysis of Compression of Lumbar Spine with Dynamic Implant
Type
conference paper
Language
en
Original abstract
The degenerative and traumatic injuries of a spine are very frequent. In those cases it is necessary to stabilize the corresponding spine segment using a spine implant. The spinal implants are rigid or flexible, the latter known as dynamic ones in medical practice. In this paper, the problems of the physiological spinal segment and the segment with implant were solved using the computational modelling (finite element method). Computational model consists of 4 lumbar vertebrae L2 – L5, intervertebral discs, joints and spinal implants. The spinal segment was loaded by the force 400N. The total displacement of the whole system, contact pressure of cartilages, equivalent strain in cancellous bone and equivalent stress in the implant were analyzed. The deformation of the physiological model and the model with the implant are comparable, but the bone tissue of the model with the implant is dramatically more loaded in vicinity of the screws.
Czech abstract
Degenerativní onemocnění páteře stále častější. Stabilizace páteře je možné provést pomocí fixátorů. Práce je zaměřena na hodnocení deformačně napěťových stavů.
English abstract
The degenerative and traumatic injuries of a spine are very frequent. In those cases it is necessary to stabilize the corresponding spine segment using a spine implant. The spinal implants are rigid or flexible, the latter known as dynamic ones in medical practice. In this paper, the problems of the physiological spinal segment and the segment with implant were solved using the computational modelling (finite element method). Computational model consists of 4 lumbar vertebrae L2 – L5, intervertebral discs, joints and spinal implants. The spinal segment was loaded by the force 400N. The total displacement of the whole system, contact pressure of cartilages, equivalent strain in cancellous bone and equivalent stress in the implant were analyzed. The deformation of the physiological model and the model with the implant are comparable, but the bone tissue of the model with the implant is dramatically more loaded in vicinity of the screws.
Keywords in Czech
Páteř; implantát; intervertebralní disk; deformačně-napěťová analýza
Keywords in English
Spine; implant; intervertebral disc; joints; stress – strain analysis
RIV year
2014
Released
12.05.2014
Publisher
BUT
Location
Svratka
ISBN
978-80-214-4871-1
Book
Engineering Mechanics 2014
Edition number
2014
Pages from–to
512–515
Pages count
4
BIBTEX
@inproceedings{BUT107540,
author="Eva {Prášilová} and Zdeněk {Florian} and Petr {Marcián},
title="Finite Element Analysis of Compression of Lumbar Spine with Dynamic Implant",
booktitle="Engineering Mechanics 2014",
year="2014",
month="May",
pages="512--515",
publisher="BUT",
address="Svratka",
isbn="978-80-214-4871-1"
}