Publication detail

Finite Element Analysis of Compression of Lumbar Spine with Dynamic Implant

PRÁŠILOVÁ, E. FLORIAN, Z. MARCIÁN, P.

Original Title

Finite Element Analysis of Compression of Lumbar Spine with Dynamic Implant

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.

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

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

1

Edition number

2014

Pages from

512

Pages to

515

Pages count

4

Documents

BibTex


@inproceedings{BUT107540,
  author="Eva {Prášilová} and Zdeněk {Florian} and Petr {Marcián}",
  title="Finite Element Analysis of Compression of Lumbar Spine with Dynamic Implant",
  annote="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.",
  address="BUT",
  booktitle="Engineering Mechanics 2014",
  chapter="107540",
  edition="1",
  howpublished="print",
  institution="BUT",
  year="2014",
  month="may",
  pages="512--515",
  publisher="BUT",
  type="conference paper"
}