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Distinguishing between perimortem and postmortem fractures: are osteons of any help?

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Abstract

The distinction between perimortem and postmortem fractures in forensic anthropology is still a frequently unsolved issue. In the present study, we try to verify if there are differences in the pattern of osteon fracturing between fresh and dry bone which could be used for such a diagnosis. Fresh and dry long bones were fractured by a hammer at the mid-shaft perpendicularly to the long axis of the bone and the fracture margins examined under a light microscope as undecalcified sections. Examination of 982 osteons (505 fresh, 477 dry) showed that twice as often the fracture line crosses the osteons as opposed to travelling around them, independently of whether the bone is fresh or dry. Statistical analysis confirmed that there was no significant difference between fresh and dry bone. This seems to imply that osteon fracture pattern cannot help in the diagnosis of perimortem versus postmortem bone fractures. Further research however must be performed concerning fast and slow energy dispersal which may have an influence on the type of fracture inflicted.

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Authors and Affiliations

  1. LABANOF Laboratorio di Antropologia e Odontologia Forense, Sezione di Medicina Legale, Dipartimento di Morfologia Umana e Scienze Biomediche, Università degli Studi di Milano, Milan, Italy

    Markéta Pechníková, Davide Porta & Cristina Cattaneo

  2. Laboratory of Biological and Molecular Anthropology, Institute of Experimental Biology, Faculty of Science, Masaryk University, Brno, 60200, Czech Republic

    Markéta Pechníková

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  1. Markéta Pechníková
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  2. Davide Porta
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  3. Cristina Cattaneo
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Correspondence to Cristina Cattaneo.

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Pechníková, M., Porta, D. & Cattaneo, C. Distinguishing between perimortem and postmortem fractures: are osteons of any help?. Int J Legal Med 125, 591–595 (2011). https://doi.org/10.1007/s00414-011-0570-9

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  • DOI: https://doi.org/10.1007/s00414-011-0570-9

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