The effect of three-dimensional geometrical changes during adolescent growth on the biomechanics of a spinal motion segment

Meijer, Gerdine; Homminga, Jasper Johan; Hekman, Edsko E.G.; Veldhuizen, Albert G.; Verkerke, Gijsbertus Jacob

doi:10.1016/j.jbiomech.2010.01.028

Cited by 40 publications

(31 citation statements)

References 47 publications

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“…Neither can OFAT analyses reveal possible interactions between parameters, nor do they allow performing a meaningful uncertainty analysis of the model's output and only allow for a very constrained form of SA. Meijer et al used this technique to investigate the impact of changing anatomy during adolescent growth and inter-personal variability in anatomical parameters for the L3-L4 segment on the spinal stiffness (Meijer et al, 2010(Meijer et al, , 2011.…”

Section: Introductionmentioning

confidence: 99%

Geometry strongly influences the response of numerical models of the lumbar spine—A probabilistic finite element analysis

Niemeyer¹,

Wilke²,

Schmidt³

2012

Journal of Biomechanics

123

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Section: Introductionmentioning

confidence: 99%

Geometry strongly influences the response of numerical models of the lumbar spine—A probabilistic finite element analysis

Niemeyer¹,

Wilke²,

Schmidt³

2012

Journal of Biomechanics

123

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“…Models can be geometrically parameterized [4]- [6], subjectspecific [3], [7]- [10], or a combination of both [11]- [14]. The former can provide general information about pathology mechanisms or fracture risks, but not about personalized biomechanics.…”

mentioning

confidence: 99%

Method to Geometrically Personalize a Detailed Finite-Element Model of the Spine

Lalonde

Petit

Cé

et al. 2013

IEEE Trans. Biomed. Eng.

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This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication. TBME-01357-2012.R2Abstract-To date, developing geometrically personalized and detailed solid finite element models of the spine remains a challenge, notably due to multiple articulations and complex geometries. To answer this problem, a methodology based on a free form deformation technique (kriging) was developed to deform a detailed reference finite element mesh of the spine (including discs and ligaments) to the patient-specific geometry of 10 and 82-year old asymptomatic spines. Different kriging configurations were tested: with or without smoothing, and control points on or surrounding the entire mesh. Based on the results, it is recommended to use surrounding control points and smoothing. The mean node to surface distance between the deformed and target geometries was 0.3 mm ± ± ± ± 1.1. Most elements met the mesh quality criteria (95%) after deformation, without interference at the articular facets. The method's novelty lies in the deformation of the entire spine at once, as opposed to deforming each vertebra separately, with surrounding control points and smoothing. This enables the transformation of reference vertebrae and soft tissues to obtain complete and personalized FEMs of the spine with minimal post-processing to optimize the mesh.

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“…The conclusions reached through the hypothesis are very reasonable, taking into account that the effect of geometrical changes of the vertebrae on spinal stiffness remains poorly understood [29,40] and knowledge of the spiné s growth is remarkably limited [22].…”

Section: Evaluation Of the Hypothesismentioning

confidence: 70%

Hypothesis about an existent biomechanical cause–effect relationship between Schëuermann’s kyphosis and scoliosis

2015

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The effect of three-dimensional geometrical changes during adolescent growth on the biomechanics of a spinal motion segment

Cited by 40 publications

References 47 publications

Geometry strongly influences the response of numerical models of the lumbar spine—A probabilistic finite element analysis

Geometry strongly influences the response of numerical models of the lumbar spine—A probabilistic finite element analysis

Method to Geometrically Personalize a Detailed Finite-Element Model of the Spine

Hypothesis about an existent biomechanical cause–effect relationship between Schëuermann’s kyphosis and scoliosis

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