Document Detail

The Biomechanical Determinants of Concussion: Finite Element Simulations to Investigate Brain Tissue Deformations During Sporting Impacts to the Unprotected Head.
MedLine Citation:
PMID:  23434739     Owner:  NLM     Status:  Publisher    
Concussion is an injury of specific interest in collision and contact sports resulting in a need to develop effective preventative strategies. A detailed finite element model of the human head was used to approximate the regional distribution of tissue deformations in the brain by simulating reconstructions of unhelmeted concussion and no-injury head impacts. The results were evaluated using logistic regression analysis and it was found that angular kinematics, in the coronal plane, and maximum principal strains, in all regions of the brain, were significantly associated with concussion. The results suggested that temporal impacts direct angular kinematics in the coronal plane, which result in injurious strain levels in the brain. Tentative strain tolerance levels of 0.13, 0.15, and 0.26 in the thalamus, corpus callosum, and white matter, respectively, for a 50% risk of concussion were determined by logistic regression. The tentative strain tolerance levels compared well previously reported results from reconstruction studies of American football and single axon, optic nerve, and brain slice culture model studies. The methods used in the current study provide an opportunity to collect unique kinematic data of sporting impacts to the unprotected head, which can be employed in various ways to broaden the understanding of concussion.
Declan A Patton; Andrew S McIntosh; Svein Kleiven
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-2-20
Journal Detail:
Title:  Journal of applied biomechanics     Volume:  -     ISSN:  1065-8483     ISO Abbreviation:  J Appl Biomech     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-2-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9315240     Medline TA:  J Appl Biomech     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Faculty of Science, University of New South Wales, Kensington, New South Wales, Australia.
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