Preparation of on-axis cylindrical trabecular bone specimens using micro-CT imaging

被引：24
|
作者：
Wang, X [1 ]
Liu, XY [1 ]
Niebur, GL [1 ]
机构：
[1] Univ Notre Dame, Dept Aerosp & Mech Engn, Notre Dame, IN 46556 USA
来源：
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME | 2004年 / 126卷 / 01期
关键词：
trabecular bone; orthotropy; mechanical testing;
D O I：
10.1115/1.1645866
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
The Orientation of trabecular bone specimens for mechanical testing must be carefully controlled. A method for accurately preparing on-axis cylindrical specimens using high-resolution micro-CT imaging was developed. Sixteen cylindrical specimens were prepared from eight bovine tibiae. High-revolution finite element models were generated from micro-CT images of parallelepipeds and used to determine the principal material coordinate system of each parallelepiped. A cylindrical specimen was then Machined with a diamond coring bit. The resulting specimens were scanned again to evaluate the orientation. The average deviation between the principal fabric orientation and the longitudinal axis of the cylindrical specimen was only 4.70+/-3.11degrees.
引用
收藏
页码：122 / 125
页数：4
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