Abstract:
:Clinicians are often faced with the challenging task of distinguishing between accidental and inflicted pediatric head trauma. There is currently a disparity in the anecdotal case study literature as to what kinds of injuries can occur in children from low height falls. There is also a paucity of material property data for pediatric skull and suture at rates similar to those expected in low height falls. We tested human infant (<1 year old) cranial bone and suture from 23 calveria in three-point bending and tension, respectively, at rates ranging from 1.2-2.8 m/sec. Donor age was found to have the largest influence on the elastic modulus and ultimate stress of cranial bone, with an increase in age increasing both material properties. In adults, cranial bone and suture have similar properties and the adult calveria deforms very little prior to fracture. In contrast, pediatric cranial bone is 35 times stiffer than pediatric cranial suture. In addition, pediatric cranial suture deforms 30 times more before failure than pediatric cranial bone and 243 times more than adult cranial bone. The large strains in the pediatric bone and suture result in a skullcase that can undergo dramatic shape changes before fracture, potentially causing substantial deformation in the brain. The sizeable difference between pediatric bone and suture material properties also underscores the crucial role that sutures play in the unique response of the pediatric head to impact in low height falls. These data provide necessary information to enhance our understanding of mechanisms of head injury in young children.
journal_name
J Neurotraumajournal_title
Journal of neurotraumaauthors
Coats B,Margulies SSdoi
10.1089/neu.2006.23.1222subject
Has Abstractpub_date
2006-08-01 00:00:00pages
1222-32issue
8eissn
0897-7151issn
1557-9042journal_volume
23pub_type
杂志文章abstract::Posttraumatic ischemia appears to be largely responsible for the extension of lesions in acute injury of the spinal cord. In the present study, we have evaluated the putative improvement of axonal function by the calcium channel blocker nimodipine after acute trauma of the spinal cord. Three techniques were used: (1) ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1993.10.201
更新日期:1993-07-01 00:00:00
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journal_title:Journal of neurotrauma
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更新日期:1989-10-01 00:00:00
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journal_title:Journal of neurotrauma
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journal_title:Journal of neurotrauma
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doi:10.1089/089771504322972040
更新日期:2004-03-01 00:00:00
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journal_title:Journal of neurotrauma
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doi:10.1089/neu.2000.17.1171
更新日期:2000-12-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2006.0129
更新日期:2007-03-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2015.4131
更新日期:2016-03-15 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2006.23.1427
更新日期:2006-10-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 临床试验,杂志文章
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更新日期:1999-03-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2017.5184
更新日期:2018-03-15 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2011.2197
更新日期:2012-05-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1996.13.201
更新日期:1996-04-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/08977150360547080
更新日期:2003-02-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,评审
doi:10.1089/neu.2008.0849
更新日期:2009-07-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2011.2063
更新日期:2012-06-10 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2019.6601
更新日期:2021-01-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2009.1163
更新日期:2010-03-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,评审
doi:10.1089/neu.2012.2313
更新日期:2012-07-20 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2018.5966
更新日期:2019-06-15 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
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更新日期:2000-01-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2012.2328
更新日期:2012-06-10 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2015.4343
更新日期:2017-01-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1089/neu.2016.4472
更新日期:2018-01-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/089771503770802907
更新日期:2003-11-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2009.0966
更新日期:2010-03-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2014.3449
更新日期:2015-01-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2015.4098
更新日期:2016-07-15 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
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更新日期:2012-05-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2018-10-01 00:00:00
abstract::Recommendations on treatment of patients with head injury were recently proposed by the National Institute for Clinical Excellence (NICE). We tested the clinical performance of NICE variables versus the proposal of the Neurotraumatology Committee of the World Federation of Neurosurgical Societies (NCWFNS). Over a 5-ye...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
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更新日期:2005-12-01 00:00:00