Interfragmentary surface area as an index of comminution severity in cortical bone impact
Interfragmentary surface area as an index of comminution severity in cortical bone impact
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DOI：
10.1016/j.orthres.2004.09.008
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发表时间：
2005-05-01
影响因子：
2.8
通讯作者：
Brown, TD
中科院分区：
文献类型：
--
作者：
Beardsley, CL;Anderson, DD;Brown, TD
基于断裂力学原理，脆性固体的能量吸收和断裂表面积生成之间预期存在单调关系。据假设，这种关系在骨中是可证明的，以至于在一个连续的尺度上，使用特定水平的能量输送产生的粉碎性骨折可以相互区分。使用牛皮质骨段结合CT骨折数据的数字图像分析，测量受控冲击骨折事件释放的表面积。结果表明，在0.423至0.702 J/g的输入能量范围内，三个样本组之间测得的从头表面积存在统计学显著差异（p < 0.0001）。通过CT Hounsfield强度将局部材料性质也纳入这些测量中。这项研究证实，粉碎性骨折的严重程度确实可以衡量油连续规模，基于油的能量吸收。这为类似的人体损伤评估奠定了基础。(c)2004骨科研究学会。由爱思唯尔有限公司出版。保留所有权利。
A monotonic relationship is expected between energy absorption and fracture Surface area generation for brittle solids, based on fracture mechanics principles. It was hypothesized that this relationship is demonstrable in bone, to the point that oil a continuous scale, comminuted fractures created with specific levels of energy delivery could be discriminated from one another. Using bovine cortical bone segments in conjunction with digital image analysis of CT fracture data, the surface area freed by controlled impact fracture events was measured. The results demonstrated a statistically significant (p < 0.0001) difference in measured de novo surface area between three specimen groups, over a range of input energies front 0.423 to 0.702 J/g. Local material propel-ties were also incorporated into these measurements via CT Hounsfield intensities. This study confirms that comminution severity of bone fractures can indeed be measured oil a Continuous scale, based oil energy absorption. This lays a foundation for similar assessments in human injuries. (c) 2004 Orthopaedic Research Society. Published by Elsevier Ltd. All rights reserved.