Age-Dependent Fracture Characteristics of Rigid and Compliant Surface Impacts on the Infant Skull-A Porcine Model

:  This study documents skull fracture characteristics on infant porcine specimens under known impact conditions with respect to age and interface. A single impact causing fracture was conducted on the skull of porcine specimens aged 2–28 days (n = 76). Paired rigid and compliant impacts at the same...

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Published inJournal of forensic sciences Vol. 55; no. 4; pp. 993 - 997
Main Authors Baumer, Timothy G., Passalacqua, Nicholas V., Powell, Brian J., Newberry, William N., Fenton, Todd W., Haut, Roger C.
Format Journal Article
LanguageEnglish
Published Oxford, UK Blackwell Publishing Ltd 01.07.2010
Wiley Subscription Services, Inc
Subjects
age dependency
Age Factors
Animals
Animals, Newborn
Babies
Effects
Forensic osteology
Forensic Pathology
forensic science
Fractures
infant
interface dependency
Linear Models
Models, Animal
porcine
skull fracture
Skull Fractures - pathology
Studies
Swine
Tomography, X-Ray Computed
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Summary::  This study documents skull fracture characteristics on infant porcine specimens under known impact conditions with respect to age and interface. A single impact causing fracture was conducted on the skull of porcine specimens aged 2–28 days (n = 76). Paired rigid and compliant impacts at the same energy were conducted at each specimen age. Impact force, impact duration, and fracture length were recorded. Energy required to initiate skull fracture increased with specimen age. For a given energy, impact of the skull with a compliant interface caused more fracture damage than with a rigid interface for specimens aged under 17 days, but less damage for specimens aged 24–28 days. The documentation of energy required to cause fracture and resulting fracture propagation with respect to impact interface and age may be of critical importance in forensic investigations of infant skull trauma.
Bibliography:istex:AD56190AA8C2724781B92AE168C4E67591DFE66E
ArticleID:JFO1391
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Presented, in part, at the 61st Annual Meeting of the American Academy of Forensic Sciences, February 16‐21, 2009, in Denver, CO.
Funded by the National Institute of Justice, Office of Justice Programs, United States Department of Justice (2007‐DN‐BX‐K196). The opinions, findings, and conclusions expressed in this publication are those of the authors and do not necessarily reflect the views of the Department of Justice.
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ISSN:0022-1198
1556-4029
DOI:10.1111/j.1556-4029.2010.01391.x