Journal of Emergencies, Trauma, and Shock
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ORIGINAL ARTICLE
Year : 2014  |  Volume : 7  |  Issue : 2  |  Page : 97-101

A systematic examination of the bone destruction pattern of the two-shot technique


1 Department of Oral and Maxillofacial Surgery, Hanover Medical School, Hanover, Germany
2 Department of Anaesthesiology and Intensive Care, Medicine, Hanover Medical School, Hanover, Germany

Correspondence Address:
Dr. Marcus Stoetzer
Department of Oral and Maxillofacial Surgery, Hanover Medical School, Hanover
Germany
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0974-2700.130879

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Introduction: The two-shot technique is an effective stopping power method. The precise mechanisms of action on the bone and soft-tissue structures of the skull; however, remain largely unclear. The aim of this study is to compare the terminal ballistics of the two-shot and single-shot techniques. Materials and Methods: 40 fresh pigs' heads were randomly divided into 4 groups (n = 10). Either a single shot or two shots were fired at each head with a full metal jacket or a semi-jacketed bullet. Using thin-layer computed tomography and photography, the diameter of the destruction pattern and the fractures along the bullet path were then imaged and assessed. Results: A single shot fired with a full metal jacket bullet causes minor lateral destruction along the bullet path. With two shots fired with a full metal jacket bullet, however, the maximum diameter of the bullet path is significantly greater (P < 0.05) than it is with a single shot fired with a full metal jacket bullet. In contrast, the maximum diameter with a semi-jacketed bullet is similar with the single-shot and two-shot techniques. Conclusion: With the two-shot technique, a full metal jacket bullet causes a destruction pattern that is comparable to that of a single shot fired with a semi-jacketed bullet.


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