Jordana Fabienne, Colat-Parros Jacques, Bénézech Michel
Robert Picqué Armed Forces Teaching Hospital, 351 Route de Toulouse, CS 80002, 33882, Villenave d'Ornon Cedex, France.
J Forensic Sci. 2013 Jan;58 Suppl 1:S156-62. doi: 10.1111/1556-4029.12012. Epub 2012 Oct 26.
Most studies on fracture morphology of fresh or dry bones, specifically skull bones, have a limited focus, and they are often based on observations rather than experimental tests. This study characterized pig cranial fractures sustained under known impact conditions. An impact machine (mobile carriage guided by columns) was used to perform a fracture on each skull. Impacts were performed at the same energy level on fresh and dry bones, with two types of impactor: a sharp striker (n = 50) and a blunt striker (n = 50). We found distinct features under different conditions, including osseous flakes on fresh bones, 90° fracture angles on dry bones, and more fractures with greater fragmentation on dry bones. These features highlighted the effects of time on perimortem fracture characteristics and the importance of bone storage conditions in the study of fracture genesis.
大多数关于新鲜或干燥骨骼（特别是颅骨）骨折形态的研究重点有限，且往往基于观察而非实验测试。本研究对在已知撞击条件下猪颅骨骨折进行了特征描述。使用一台撞击机（由立柱引导的移动滑架）对每个颅骨造成骨折。在相同能量水平下，使用两种类型的撞击器对新鲜和干燥骨骼进行撞击：尖锐撞击器（n = 50）和钝性撞击器（n = 50）。我们发现在不同条件下有明显特征，包括新鲜骨骼上的骨片、干燥骨骼上90°的骨折角度，以及干燥骨骼上更多且破碎程度更大的骨折。这些特征突出了时间对濒死期骨折特征的影响以及骨骼储存条件在骨折成因研究中的重要性。
