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01-01-2021 | Autopsy | Original Article

Morphology of direct and indirect rib fractures

Authors: Steffen Kissling, Roland Hausmann

Published in: International Journal of Legal Medicine | Issue 1/2021

Abstract

Rib fractures are a common finding in legal medicine and information on the impact mechanism is relevant for trauma reconstruction. This study focuses on morphological characteristics of rib fractures resulting from direct or indirect force. Fresh human ribs (n = 312) were divided into two groups and broken through local force (direct) and bending (indirect) in anterolateral areas. The ribs were macerated, visually investigated and the results statistically analysed. The indirect fractures showed a significant larger lateral offset of the internal and external fracture ends while the fracture ends of the direct fractures were more often straight, in line. Also, the morphology of the inner and outer fracture edges was significantly related to fracture type. Direct fractures mostly had rough and jagged inner edges (tension side) and straight, smooth outer edges (compression side), whereas indirect fractures more often showed the characteristics vice versa. The results were more convincing in combination and in ribs from persons aged ≤ 75 years at death. In summary, the direct and indirect rib fractures showed significantly different characteristics regarding orientation and offset of the fracture lines and roughness of the inner and outer fracture edges, which can be helpful to distinguish the traumatizing impact mechanisms in forensic autopsy routine.

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Title: Morphology of direct and indirect rib fractures
Authors: Steffen Kissling
Roland Hausmann
Publication date: 01-01-2021
Publisher: Springer Berlin Heidelberg
Keywords: Autopsy
Rib Fracture
Published in: International Journal of Legal Medicine / Issue 1/2021
Print ISSN: 0937-9827
Electronic ISSN: 1437-1596
DOI: https://doi.org/10.1007/s00414-020-02428-4

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