Dubrovin I A, Dubrovina I A, Pigolkin Iu I
Sud Med Ekspert. 2005 May-Jun;48(3):9-11.
Morphological characteristics of gunshot injuries of the cranial dome bones depend on bullet speed and are determined by various mechanisms of the harmful action. A contusion action of the bullet is characterized by disruption of the bone tissue with formation of linear or incomplete fracture. A wedged impact is accompanied with disruption of bone structures with formation of depressed or comminuted fractures due to radial dislocation of the fragments. A perforative impact produces a hole defect the shape of which depends on bullet speed. A bursting impact of the bullet causes disruption of the bone tissue outside the bullet defect as a result of an additional radial effect of high pressure of the air wave reaching in the wounds inflicted by high-speed bullets the effect of the hydrodynamic shock in the spongy layer of the flat bone. Resultant morphological manifestations are aggravated by damage caused by hydrodynamic shock coming from the cranial cavity.
颅顶骨枪伤的形态学特征取决于子弹速度,并由各种有害作用机制决定。子弹的挫伤作用表现为骨组织破坏并形成线性或不完全骨折。楔形撞击伴随着骨结构破坏,由于碎片的径向移位而形成凹陷或粉碎性骨折。穿孔撞击产生一个孔缺损,其形状取决于子弹速度。子弹的爆裂撞击会导致子弹缺损外的骨组织破坏,这是由于高速子弹造成的伤口中到达扁平骨海绵层的气浪高压产生的额外径向效应,即流体动力冲击的结果。来自颅腔的流体动力冲击造成的损伤会加重最终的形态学表现。