Dipartimento di Morfologia Umana e Scienze Biomediche, Sezione di Medicina Legale e delle Assicurazioni, Università degli Studi di Milano, Via Luigi Mangiagalli, 37, 20133 Milano, Italy.
Forensic Sci Int. 2011 Apr 15;207(1-3):e48-50. doi: 10.1016/j.forsciint.2010.12.010. Epub 2011 Jan 26.
We describe a case of complete decapitation following a motorcycle accident in which the victim was wearing a full face helmet. A young man lost control of his motorcycle and was thrown about 20 m, hitting his head against the barrier separating a tramline from the road. The resulting trauma caused his decapitation, the only fatal wound ascertained by the various forensic investigations. The authors present this rare case and compare it against the other two cases reported in the literature, providing some observations on the ways in which this injury can come about. The absence of abrasions or signs that the wound edges came into contact with a metal structure, the presence of signs of impact on the side of the helmet and the finding of a transversal fracture at the base of the skull point to the violent action of a side-to-side opposite force, due to the resistance provided by the lower edge of the protective helmet.
我们描述了一起摩托车事故导致的完全断头案例，事故中受害者戴着全脸头盔。一名年轻男子失去对摩托车的控制，被抛出约 20 米，头部撞到将电车轨道与道路隔开的障碍物上。由此造成的创伤导致他断头，这是各种法医调查确定的唯一致命伤口。作者呈现了这个罕见的案例，并将其与文献中报告的另外两例进行了比较，对这种伤害的发生方式提出了一些观察。没有擦伤或伤口边缘与金属结构接触的迹象，头盔侧面有撞击痕迹，以及在头骨底部发现横向骨折，这表明是由于保护头盔下缘提供的阻力，导致了一种从一侧到另一侧的相反的暴力作用。
