Cone cracking in human bone: A CT case review series

IF 0.8 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Angi M. Christensen , John M. Rickman
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引用次数: 1

Abstract

Skeletal trauma analysis often involves the assessment of the types and patterns of fractures, followed by categorizing the trauma into one of several broad “mechanisms.” Trauma analysis ideally also involves understanding the underlying mechanistic basis for the bone's failure. Beveling in bone is one example of a fracture pattern that is often cited as evidence of a high-velocity projectile impact, but appears to be poorly understood in terms of both the mechanism for bevel production as well as the loading conditions responsible for its formation. It has recently been demonstrated that bone beveling results from a failure mechanism called cone cracking, which is also associated with lower velocity impacts. Many case reviews and instructional texts include imagery of beveled bone in association with projectile impacts, but present various other explanations (or no explanation) for the fracture mechanism responsible. Five cases are presented here involving cone cracking in human forensic cases. For each case, the associated fracture patterns are discussed, photographic and micro-CT imagery are shown, and a review of the cone crack is presented in cross-section. The diagnostic utility of CT examination of ambiguous perforations is also highlighted.

人骨锥裂:CT病例回顾系列
骨骼创伤分析通常包括评估骨折的类型和模式,然后将创伤分为几个广泛的“机制”之一。理想情况下,创伤分析还包括了解骨骼衰竭的潜在机制基础。骨中的斜面是骨折模式的一个例子,通常被认为是高速抛射物撞击的证据,但在斜面产生的机制以及形成斜面的载荷条件方面似乎知之甚少。最近有研究表明,骨斜切是由一种称为锥形裂纹的失效机制引起的,这种失效机制也与低速冲击有关。许多案例综述和教学文本包括与抛射物撞击相关的斜骨图像,但对骨折机制提出了各种其他解释(或没有解释)。这里介绍了五个涉及人类法医案件中锥体破裂的案例。对于每种情况,都讨论了相关的断裂模式,显示了照片和显微CT图像,并在横截面中对锥形裂纹进行了回顾。还强调了CT检查对不明穿孔的诊断作用。
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来源期刊
Forensic Imaging
Forensic Imaging RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-
CiteScore
2.20
自引率
27.30%
发文量
39
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