Development and Validation of a Musculoskeletal Model of the Fully Articulated Thoracolumbar Spine and Rib Cage
Разработка и валидация скелетно-мышечной модели полностью сочленённого грудопоясничного отдела позвоночника и грудной клетки
2015-04-22
SCID: 54.1/syjqach4
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OpenSimcomputed tomographymusculoskeletal modelingthoracolumbar spine modelvertebral compressive loading
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Abstract (AI)
We developed and validated a fully articulated model of the thoracolumbar spine in opensim that includes the individual vertebrae, ribs, and sternum. To ensure trunk muscles in the model accurately represent muscles in vivo, we used a novel approach to adjust muscle cross-sectional area (CSA) and position using computed tomography (CT) scans of the trunk sampled from a community-based cohort. Model predictions of vertebral compressive loading and trunk muscle tension were highly correlated to previous in vivo measures of intradiscal pressure (IDP), vertebral loading from telemeterized implants and trunk muscle myoelectric activity recorded by electromyography (EMG).
Key Findings
1
A fully articulated OpenSim model was developed, representing individual thoracolumbar vertebrae, ribs, and the sternum.
2
A novel CT-based method adjusted trunk muscle cross-sectional area and position to better represent in vivo muscle anatomy.
3
Model predictions of vertebral compressive loading and trunk muscle tension were highly correlated with prior in vivo measurements.
4
Validation used intradiscal pressure, vertebral loading from telemeterized implants, and trunk muscle electromyographic activity.
Research Object
fully articulated thoracolumbar spine and rib cage musculoskeletal model
Research Subject
model validity in representing trunk muscle morphology, vertebral compressive loading, and trunk muscle tension
Publication Details
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2015-04-22
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