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Lower Limb Posture Affects the Mechanism of Injury in Under-Body Blast

Over 80% of wounded Service Members sustain at least one extremity injury. The ‘deck-slap’ foot, a product of the vehicle’s floor rising rapidly when attacked by a mine to injure the limb, has been a signature injury in recent conflicts. Given the frequency and severity of these combat-related extre...

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Autores principales: Grigoriadis, Grigoris, Carpanen, Diagarajen, Webster, Claire E., Ramasamy, Arul, Newell, Nicolas, Masouros, Spyros D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6315016/
https://www.ncbi.nlm.nih.gov/pubmed/30276492
http://dx.doi.org/10.1007/s10439-018-02138-4
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author Grigoriadis, Grigoris
Carpanen, Diagarajen
Webster, Claire E.
Ramasamy, Arul
Newell, Nicolas
Masouros, Spyros D.
author_facet Grigoriadis, Grigoris
Carpanen, Diagarajen
Webster, Claire E.
Ramasamy, Arul
Newell, Nicolas
Masouros, Spyros D.
author_sort Grigoriadis, Grigoris
collection PubMed
description Over 80% of wounded Service Members sustain at least one extremity injury. The ‘deck-slap’ foot, a product of the vehicle’s floor rising rapidly when attacked by a mine to injure the limb, has been a signature injury in recent conflicts. Given the frequency and severity of these combat-related extremity injuries, they require the greatest utilisation of resources for treatment, and have caused the greatest number of disabled soldiers during recent conflicts. Most research efforts focus on occupants seated with both tibia-to-femur and tibia-to-foot angles set at 90°; it is unknown whether results obtained from these tests are applicable when alternative seated postures are adopted. To investigate this, lower limbs from anthropometric testing devices (ATDs) and post mortem human subjects (PMHSs) were loaded in three different seated postures using an under-body blast injury simulator. Using metrics that are commonly used for assessing injury, such as the axial force and the revised tibia index, the lower limb of ATDs were found to be insensitive to posture variations while the injuries sustained by the PMHS lower limbs differed in type and severity between postures. This suggests that the mechanism of injury depends on the posture and that this cannot be captured by the current injury criteria. Therefore, great care should be taken when interpreting and extrapolating results, especially in vehicle qualification tests, when postures other than the 90°–90° are of interest.
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spelling pubmed-63150162019-01-11 Lower Limb Posture Affects the Mechanism of Injury in Under-Body Blast Grigoriadis, Grigoris Carpanen, Diagarajen Webster, Claire E. Ramasamy, Arul Newell, Nicolas Masouros, Spyros D. Ann Biomed Eng Article Over 80% of wounded Service Members sustain at least one extremity injury. The ‘deck-slap’ foot, a product of the vehicle’s floor rising rapidly when attacked by a mine to injure the limb, has been a signature injury in recent conflicts. Given the frequency and severity of these combat-related extremity injuries, they require the greatest utilisation of resources for treatment, and have caused the greatest number of disabled soldiers during recent conflicts. Most research efforts focus on occupants seated with both tibia-to-femur and tibia-to-foot angles set at 90°; it is unknown whether results obtained from these tests are applicable when alternative seated postures are adopted. To investigate this, lower limbs from anthropometric testing devices (ATDs) and post mortem human subjects (PMHSs) were loaded in three different seated postures using an under-body blast injury simulator. Using metrics that are commonly used for assessing injury, such as the axial force and the revised tibia index, the lower limb of ATDs were found to be insensitive to posture variations while the injuries sustained by the PMHS lower limbs differed in type and severity between postures. This suggests that the mechanism of injury depends on the posture and that this cannot be captured by the current injury criteria. Therefore, great care should be taken when interpreting and extrapolating results, especially in vehicle qualification tests, when postures other than the 90°–90° are of interest. Springer US 2018-10-01 2019 /pmc/articles/PMC6315016/ /pubmed/30276492 http://dx.doi.org/10.1007/s10439-018-02138-4 Text en © The Author(s) 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Grigoriadis, Grigoris
Carpanen, Diagarajen
Webster, Claire E.
Ramasamy, Arul
Newell, Nicolas
Masouros, Spyros D.
Lower Limb Posture Affects the Mechanism of Injury in Under-Body Blast
title Lower Limb Posture Affects the Mechanism of Injury in Under-Body Blast
title_full Lower Limb Posture Affects the Mechanism of Injury in Under-Body Blast
title_fullStr Lower Limb Posture Affects the Mechanism of Injury in Under-Body Blast
title_full_unstemmed Lower Limb Posture Affects the Mechanism of Injury in Under-Body Blast
title_short Lower Limb Posture Affects the Mechanism of Injury in Under-Body Blast
title_sort lower limb posture affects the mechanism of injury in under-body blast
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6315016/
https://www.ncbi.nlm.nih.gov/pubmed/30276492
http://dx.doi.org/10.1007/s10439-018-02138-4
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