Validity of the use of porcine bone in forensic cut mark studies

Bonney, Heather and Goodman, Adrian (2021) Validity of the use of porcine bone in forensic cut mark studies. Journal of Forensic Sciences, 66 (1). pp. 278-284. ISSN 0022-1198

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Validity of the use of porcine bone in forensic cut mark studies
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Porcine bone is often used as a substitute for human bone in forensic trauma studies, but little has been published on its comparative mechanical behavior. The factors affecting mechanical properties and therefore selection of bone models are complex and include the age of the animal at death, and physiological loading conditions, the latter being of particular relevance when using a quadrupedal animal as a human substitute. The regional variation in hardness of adult and infant porcine bones was investigated using Vickers’ indentation tests and compared to published data for human limb bones to relate differences to inherent genetic effects and loading influences, and to examine the validity of the porcine-human model. Significant differences in hardness were observed both along and around the adult porcine humerus and femur, but no significant differences were found along the length of the infant bones. Significant differences were found between the fore-and hind-limb, but only in the infant specimens. The hardness values for porcine adult cortical bone from the femur (52.23 ± 1.00 kg mm-2) were comparable to those reported in the literature for adult human cortical bone from the fibula, ilium and calcaneus. These data will help inform subject selection in terms of both species and bone type for use in future trauma studies.

Keywords:Forensic anthropology, cut marks, bone, porcine, kerf, hardness, mechanical properties
Subjects:F Physical Sciences > F400 Forensic and Archaeological Science
F Physical Sciences > F410 Forensic Science
Divisions:College of Science > School of Life Sciences
ID Code:42695
Deposited On:26 Oct 2020 13:41

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