Computational modeling and analysis of thoracolumbar spine fractures in frontal crash reconstruction

Ye, Xin; Gaewsky, James P; Jones, Derek A.; Miller, Logan E.; Stitzel, Joel D.; Weaver, Ashley A.

doi:10.1080/15389588.2018.1498090

Cited by 10 publications

(6 citation statements)

References 28 publications

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“…As our research showed, flexion bending should be considered in the evaluation of injury risk as it might highly contribute to lumbar spine fractures. The combined load of an axial compression force and bending moment was investigated by ( Ye et al, 2018 ). They proposed LSI which in our study indicated that a fracture may occur in the lumbar section; however, the index was not able to indicate the specific location of the injury.…”

Section: Discussionmentioning

confidence: 99%

“…Several criteria from the literature were applied to capture the possible fractures in the detailed model. The first was a lumbar spine index (LSI) proposed by ( Ye et al, 2018 ). This index is based on the combined load of an axial compression force and the resultant bending moment in each vertebra of the lumbar spine.…”

Section: Methodsmentioning

confidence: 99%

“…In the research by ( Arun et al, 2017 ), they used the HBM developed by Global Human Body Model Consortium (GHBMC). However, THUMS was used by ( Golman et al, 2014 ; Gaewsky et al, 2015 ; Jones et al, 2016 ; Ye et al, 2018 ), and ViVA – open source HBM was adopted by ( Östh et al, 2015 ; Östh et al, 2016a ; Östh et al, 2016b ; Östh et al, 2017a ; Östh et al, 2017b ). The latter model was chosen for this study because it was an open source project, and it was a model of 50 th percentile female, for whom there was evidence that they could be more vulnerable during vehicle collisions ( Pintar et al, 2012 ; Kaufman et al, 2013 ; Östh et al, 2017b ).…”

Section: Introductionmentioning

confidence: 99%

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Biomechanics of Lumbar Spine Injury in Road Barrier Collision–Finite Element Study

Pachocki

Daszkiewicz

Łuczkiewicz

et al. 2021

Front. Bioeng. Biotechnol.

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Literature and field data from CIREN database have shown that lumbar spine injuries occur during car crashes. There are multiple hypotheses regarding how they occur; however, there is no biomechanical explanation for these injuries during collisions with road safety barriers (RSBs). Therefore, the objective of this study was to investigate the mechanics of vertebral fractures during car collisions with concrete RSBs. The finite element method was used for the numerical simulations. The global model of the car collision with the concrete RSB was created. The lumbar spine kinematics were extracted from the global simulation and then applied as boundary conditions to the detailed lumbar spine model. The results showed that during the collision, the occupant was elevated, and then dropped during the vehicle landing. This resulted in axial compression forces 2.6 kN with flexion bending moments 34.7 and 37.8 Nm in the L2 and L3 vertebrae. It was shown that the bending moment is the result of the longitudinal force on the eccentricity. The lumbar spine index for the L1–L5 section was 2.80, thus indicating a lumbar spine fracture. The minimum principal strain criterion of 7.4% and damage variable indicated L2 and L3 vertebrae and the inferior part of L1, as those potentially prone to fracture. This study found that lumbar spine fractures could occur as a consequence of vehicle landing during a collision with a concrete RSB mostly affecting the L1–L3 lumbar spine section. The fracture was caused by a combination of axial forces and flexion bending moments.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biomechanics of Lumbar Spine Injury in Road Barrier Collision–Finite Element Study

Pachocki

Daszkiewicz

Łuczkiewicz

et al. 2021

Front. Bioeng. Biotechnol.

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“…Thoracolumbar fractures are most common spine fractures 1 , 2 . Pedicle screw internal fixation (PSF) is often used for thoracolumbar spinal fractures.…”

Section: Introductionmentioning

confidence: 99%

Application of 3-dimensional printing guide template and pointed lotus-style regulator in percutaneous pedicle screw fixation for thoracolumbar fractures

Zhang

Fang

et al. 2022

Sci Rep

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This study aims to analysis the efficacy of the 3D printing percutaneous guide template in combination with the pointed lotus-style regulator in percutaneous pedicle screw fixation. 60 thoracolumbar fractures patients receiving percutaneous pedicle screw fixation (PPSF) were enrolled and randomly divided into 3 groups. Patients in Group A received traditional PPSF, while patients in Group B received PPSF with flat end lotus-style regulator and patients in Group C received PPSF with pointed lotus-style regulator. The experimental results showed that the highest number of pedicle screw successfully inserted by the first time was in group C, while lowest in group A (P < 0.05). The total time of fluoroscopy and operation were lower in group C, and higher in group A (P < 0.05). VAS and ODI scores were all lower after surgery than before surgery in 3groups. VAS and ODI scores were lower in group B and C, compared with group A at day 1, 7 after surgery (P < 0.05). KA decreased significantly in 3 groups after surgery and no difference in KA change between 3 groups (P > 0.05). Taken together, Application of the 3D printing guide template in combination with pointed lotus-style regulator improved the accuracy of pedicle insertion.Trial registration: ClinicalTrials.gov Identifier: NCT04980131. Registered 18/07/2021.

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“…In the research by (Arun et al, 2017), they used the HBM developed by Global Human Body Model Consortium (GHBMC). However, THUMS was used by (Golman et al, 2014;Gaewsky et al, 2015;Jones et al, 2016;Ye et al, 2018), and ViVAopen source HBM was adopted by (Östh et al, 2015; Östh et al, 2016a; Östh et al, 2016b; Östh et al, 2017a; Östh et al, 2017b). The latter model was chosen for this study because it was an open source project, and it was a model of 50 th percentile female, for whom there was evidence that they could be more vulnerable during vehicle collisions (Pintar et al, 2012;Kaufman et al, 2013;Östh et al, 2017b).…”

Section: Introductionmentioning

confidence: 99%

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Computational modeling and analysis of thoracolumbar spine fractures in frontal crash reconstruction

Cited by 10 publications

References 28 publications

Biomechanics of Lumbar Spine Injury in Road Barrier Collision–Finite Element Study

Biomechanics of Lumbar Spine Injury in Road Barrier Collision–Finite Element Study

Application of 3-dimensional printing guide template and pointed lotus-style regulator in percutaneous pedicle screw fixation for thoracolumbar fractures

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