The skeletal blunt force trauma resulting from fatal falls involving stairs is complex. There are countless ways an individual may fall when stairs are involved, and thus a variety of ways the skeleton may fracture. Therefore anecdotally, it may be said that there is no specific skeletal trauma characteristic of this fall type. In order to scientifically investigate this anecdotal understanding, this study provides a detailed investigation of the skeletal fracture patterns and morphologies resulting from fatal falls involving stairs. Skeletal trauma was analyzed using the full-body postmortem computed tomography scans of 57 individuals who died from a fall involving stairs. Trauma was examined in the context of the variables that potentially influence how an individual falls (i.e. sex, age, body mass index, number of stairs involved, psychoactive drugs, pre-existing conditions, landing surface and manner of the fall) using logistic regression. Skeletal trauma primarily occurred in the axial skeleton. An analysis of fracture patterns showed the cranial base was less likely to fracture in younger individuals and the cervical vertebrae were more likely to fracture in falls that involved more than half a flight of stairs. A total of 56 fracture morphologies were identified. Of these, diastatic fractures were less likely to occur in older individuals. Findings indicate that there are skeletal fracture patterns and morphologies characteristic of a fatal fall involving stairs.
Forensic anthropology Forensic pathology Fatal fall Fall involving stairs Skeletal trauma Blunt force trauma Postmortem computed tomography Fracture pattern Fracture morphology Autopsy Bone
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The authors wish to thank the Victorian Institute of Forensic Medicine for providing access to the PMCT data; the National Coronial Information System for their assistance in attaining the relevant cases, and the manuscript reviewers for their constructive comments. Author SKR would like to acknowledge the Australian Government Research Training Program Scholarship who funded her doctoral research, for which this paper was a component.
Australian Government Research Training Program Scholarship.
Compliance with ethical standards
Conflict of Interest
The authors declare that they have no conflict of interest.
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