Wang Z G, Tang C G, Chen X Y, Shi T Z
Research Institute of Surgery, Third Military Medical College, Chongquing, China.
J Trauma. 1988 Jan;28(1 Suppl):S89-95. doi: 10.1097/00005373-198801001-00020.
Soft-tissue wounds were inflicted on the upper parts of both hind legs of dogs by fragments which were shot with a smooth-bore testing rifle. Three impact velocities were used: "high" (1,500 m/s, six dogs), "middle" (1,000 m/s, eight dogs) and "low" (700 m/s, seven dogs). Debridement and gross examination were carried out 6 hours after wounding. The main conclusions were as follows: 1) Grossly, most of the wound tracks were blind. The primary wound track in the "high"-velocity group looked like a funnel in shape. The wound cavity close to the entrance had the largest diameter. 2) The severity of the tissue damage depended on the impact velocity. The higher the velocity, the larger were the wound cavities, the more tissues damaged, and the wider was the area of tissue damage around the cavity. 3) Based on the gross, light microscopy (LM), and electron microscopy (EM) observations it was found that one of the predominant characteristics of the tissue damage caused by fragments was the irregularity or unevenness. This was especially true in the case of the "high"-velocity group. The distribution of tissue damage seemed to be "jumping" or "mosaic." This probably resulted from the irregularity of the energy delivery from fragments with high velocity and low mass. 4) The differences in morphologic characteristics between wound tracks caused by bullets and those by fragments are discussed.
用滑膛试验步枪发射的弹片造成犬双后肢上部的软组织伤。使用了三种冲击速度：“高”（1500米/秒，6只犬）、“中”（1000米/秒，8只犬）和“低”（700米/秒，7只犬）。伤后6小时进行清创和大体检查。主要结论如下：1）大体上，大多数伤道是盲管。“高速”组的原发伤道呈漏斗状。靠近入口处的伤腔直径最大。2）组织损伤的严重程度取决于冲击速度。速度越高，伤腔越大，损伤的组织越多，伤腔周围的组织损伤区域越宽。3）基于大体、光学显微镜（LM）和电子显微镜（EM）观察发现，弹片造成的组织损伤的主要特征之一是不规则或不均匀。在“高速”组中尤其如此。组织损伤的分布似乎是“跳跃式”或“镶嵌式”的。这可能是由于高速低质量弹片能量传递的不规则性所致。4）讨论了子弹造成的伤道与弹片造成的伤道在形态学特征上的差异。
