Numerical simulation of asymmetrically altered growth as initiation mechanism of scoliosis

A. van der Plaats, A.G. Veldhuizen, Gijsbertus Jacob Verkerke

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Abstract

The causes of idiopathic scoliosis are still uncertain; buckling is mentioned often, but never proven. The authors hypothesize another option: unilateral postponement of growth of MM Rotatores or of ligamentum flavum and intertransverse ligament. In this paper, both buckling and the two new theories of scoliotic initiation are studied using a new finite element model that simulates the mechanical behavior of the human spine. This model was validated by the stiffness data of Panjabi et al. (J. Biomech. 9:185–192, 1976). After a small correction of the prestrain of some ligaments and the MM Rotatores the model appeared to be valid. The postponement in growth was translated in the numerical model in an asymmetrical stiffness. The spine was loaded axially and the resulting deformation was analyzed for the presence of the coupling of lateral deviation and axial rotation that is characteristic for scoliosis. Only unilateral postponement of growth of ligamentum flavum and intertransverse ligament appeared to initiate scoliosis. Buckling did not initiate scoliosis.
Original languageUndefined
Pages (from-to)1206-1215
Number of pages10
JournalAnnals of biomedical engineering
Volume35
Issue number7
DOIs
Publication statusPublished - 2007

Keywords

  • IR-104593
  • METIS-244728

Cite this

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title = "Numerical simulation of asymmetrically altered growth as initiation mechanism of scoliosis",
abstract = "The causes of idiopathic scoliosis are still uncertain; buckling is mentioned often, but never proven. The authors hypothesize another option: unilateral postponement of growth of MM Rotatores or of ligamentum flavum and intertransverse ligament. In this paper, both buckling and the two new theories of scoliotic initiation are studied using a new finite element model that simulates the mechanical behavior of the human spine. This model was validated by the stiffness data of Panjabi et al. (J. Biomech. 9:185–192, 1976). After a small correction of the prestrain of some ligaments and the MM Rotatores the model appeared to be valid. The postponement in growth was translated in the numerical model in an asymmetrical stiffness. The spine was loaded axially and the resulting deformation was analyzed for the presence of the coupling of lateral deviation and axial rotation that is characteristic for scoliosis. Only unilateral postponement of growth of ligamentum flavum and intertransverse ligament appeared to initiate scoliosis. Buckling did not initiate scoliosis.",
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author = "{van der Plaats}, A. and A.G. Veldhuizen and Verkerke, {Gijsbertus Jacob}",
note = "Open access",
year = "2007",
doi = "10.1007/s10439-007-9256-3",
language = "Undefined",
volume = "35",
pages = "1206--1215",
journal = "Annals of biomedical engineering",
issn = "0090-6964",
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Numerical simulation of asymmetrically altered growth as initiation mechanism of scoliosis. / van der Plaats, A.; Veldhuizen, A.G.; Verkerke, Gijsbertus Jacob.

In: Annals of biomedical engineering, Vol. 35, No. 7, 2007, p. 1206-1215.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Numerical simulation of asymmetrically altered growth as initiation mechanism of scoliosis

AU - van der Plaats, A.

AU - Veldhuizen, A.G.

AU - Verkerke, Gijsbertus Jacob

N1 - Open access

PY - 2007

Y1 - 2007

N2 - The causes of idiopathic scoliosis are still uncertain; buckling is mentioned often, but never proven. The authors hypothesize another option: unilateral postponement of growth of MM Rotatores or of ligamentum flavum and intertransverse ligament. In this paper, both buckling and the two new theories of scoliotic initiation are studied using a new finite element model that simulates the mechanical behavior of the human spine. This model was validated by the stiffness data of Panjabi et al. (J. Biomech. 9:185–192, 1976). After a small correction of the prestrain of some ligaments and the MM Rotatores the model appeared to be valid. The postponement in growth was translated in the numerical model in an asymmetrical stiffness. The spine was loaded axially and the resulting deformation was analyzed for the presence of the coupling of lateral deviation and axial rotation that is characteristic for scoliosis. Only unilateral postponement of growth of ligamentum flavum and intertransverse ligament appeared to initiate scoliosis. Buckling did not initiate scoliosis.

AB - The causes of idiopathic scoliosis are still uncertain; buckling is mentioned often, but never proven. The authors hypothesize another option: unilateral postponement of growth of MM Rotatores or of ligamentum flavum and intertransverse ligament. In this paper, both buckling and the two new theories of scoliotic initiation are studied using a new finite element model that simulates the mechanical behavior of the human spine. This model was validated by the stiffness data of Panjabi et al. (J. Biomech. 9:185–192, 1976). After a small correction of the prestrain of some ligaments and the MM Rotatores the model appeared to be valid. The postponement in growth was translated in the numerical model in an asymmetrical stiffness. The spine was loaded axially and the resulting deformation was analyzed for the presence of the coupling of lateral deviation and axial rotation that is characteristic for scoliosis. Only unilateral postponement of growth of ligamentum flavum and intertransverse ligament appeared to initiate scoliosis. Buckling did not initiate scoliosis.

KW - IR-104593

KW - METIS-244728

U2 - 10.1007/s10439-007-9256-3

DO - 10.1007/s10439-007-9256-3

M3 - Article

VL - 35

SP - 1206

EP - 1215

JO - Annals of biomedical engineering

JF - Annals of biomedical engineering

SN - 0090-6964

IS - 7

ER -