The human spine experiences complex loading in vivo; however, simplifications to these loading conditions are commonly made in computational and experimental protocols. Pure moments are often used in cadaveric preparations to replicate in vivo loading conditions, and previous studies have shown this method adequately predicts range of motion behavior (1, 2). It is unclear what effect pure moment loading has on the tissue-level internal mechanical parameters such as stresses in the annulus fibrosus and facet contact parameters. Recent advances in musculoskeletal modeling have elucidated previously unknown quantities of the musculature recruitment patterns such as times, forces, and directions. The advancements are especially relevant in cases of surgical intervention because the spinal musculature has been reported to play a critical role in providing additional stability to the spine when defects such as discectomy and nucleotomy are involved (2). Thus, the aim of the study was to determine the importance of computational loading conditions on the resultant global ranges of motion, as well as the tissue-level predictions of annulus fibrosus stresses, and facet contact pressures, forces, and areas.
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ASME 2011 Summer Bioengineering Conference
June 22–25, 2011
Farmington, Pennsylvania, USA
Conference Sponsors:
- Bioengineering Division
ISBN:
978-0-7918-5458-7
PROCEEDINGS PAPER
The Effect of Muscle Loading on Internal Mechanical Parameters of the Lumbar Spine: A Finite Element Study Available to Purchase
Benjamin C. Gadomski,
Benjamin C. Gadomski
Colorado State University, Fort Collins, CO
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John Rasmussen,
John Rasmussen
Aalborg University, Aalborg, Denmark
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Christian M. Puttlitz
Christian M. Puttlitz
Colorado State University, Fort Collins, CO
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Benjamin C. Gadomski
Colorado State University, Fort Collins, CO
John Rasmussen
Aalborg University, Aalborg, Denmark
Christian M. Puttlitz
Colorado State University, Fort Collins, CO
Paper No:
SBC2011-53283, pp. 549-550; 2 pages
Published Online:
July 17, 2013
Citation
Gadomski, BC, Rasmussen, J, & Puttlitz, CM. "The Effect of Muscle Loading on Internal Mechanical Parameters of the Lumbar Spine: A Finite Element Study." Proceedings of the ASME 2011 Summer Bioengineering Conference. ASME 2011 Summer Bioengineering Conference, Parts A and B. Farmington, Pennsylvania, USA. June 22–25, 2011. pp. 549-550. ASME. https://doi.org/10.1115/SBC2011-53283
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