151. Effects of fall conditions and biological variability on the mechanism of skull fractures caused by falls
- Author
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Anissa Hamel, Pascal Adalian, Lionel Thollon, Maxime Llari, Marie-Dominique Piercecchi-Marti, Georges Leonetti, Laboratoire d'hydrodynamique (LadHyX), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Laboratoire de Biomécanique Appliquée (LBA UMR T24), Aix Marseille Université (AMU)-Université Gustave Eiffel, Anthropologie bio-culturelle, Droit, Ethique et Santé (ADES), Aix Marseille Université (AMU)-EFS ALPES MEDITERRANEE-Centre National de la Recherche Scientifique (CNRS), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), UMR 6578 : Anthropologie Bio-Culturelle (UAABC), and Université de la Méditerranée - Aix-Marseille 2-Centre National de la Recherche Scientifique (CNRS) more...
- Subjects
Standing height ,RECONSTITUTION (ACCID) ,[SDV]Life Sciences [q-bio] ,Finite Element Analysis ,0206 medical engineering ,[SHS.ANTHRO-BIO]Humanities and Social Sciences/Biological anthropology ,Poison control ,02 engineering and technology ,Manikins ,Models, Biological ,Pathology and Forensic Medicine ,03 medical and health sciences ,Imaging, Three-Dimensional ,0302 clinical medicine ,Skull fracture ,medicine ,otorhinolaryngologic diseases ,Humans ,030216 legal & forensic medicine ,ELEMENTS FINIS (METHODE) ,Forensic Pathology ,Current time ,Skull Fractures ,business.industry ,Mechanism (biology) ,Head injury ,Mechanics ,Structural engineering ,medicine.disease ,020601 biomedical engineering ,Skull ,medicine.anatomical_structure ,METHODE DES ELEMENTS FINIS ,BOITE CRANIENNE ,Accidental Falls ,[SDV.IB]Life Sciences [q-bio]/Bioengineering ,kull fractures . Falls . Multibody dynamics . Finite element modeling . Forensic investigations ,business ,FRACTURE (OS) ,Geology ,Biological variability - Abstract
In a forensic investigation, there is considerable difficulty in distinguishing between different mechanisms that could explain the head injury sustained. The key question is often whether the injury was the consequence of a fall, a blow, or a fall caused by a blow. Better understanding of the parameters influencing the mechanism of skull fracture could be of use when attempting to distinguish between different causes of injury. Numerous parameters concerning fall conditions and biological variability are reported in the literature to influence the mechanism of skull fracture. At the current time, there are no studies that investigate both the effect of a fall and biological parameters. The aimof this paper is to study the influence of these parameters on the mechanism of skull fracture using a numerical approach. We focused on accidental falls from a standing height. A multibody model was used to estimate head impact velocities and a finite element model was used to investigate the effect of the fall conditions and of biological variability on skull fracture. The results show that the mechanism of skull fractures is influenced by a combination of at least four parameters: impact velocity, impact surface, cortical thickness and cortical density. Skull fractures . Falls . Multibody dynamics . Finite element modeling . Forensic investigations more...
- Published
- 2013
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