Analysis of trabecular microarchitecture of human iliac bone using microcomputed tomography in patients with hip arthrosis with or without vertebral fracture

被引:106
作者
Ito, M
Nakamura, T
Matsumoto, T
Tsurusaki, K
Hayashi, K
机构
[1] Nagasaki Univ, Dept Radiol, Nagasaki 852, Japan
[2] Nagasaki Univ, Dept Orthoped Surg, Nagasaki 852, Japan
[3] Univ Occupat & Environm Hlth, Dept Orthoped Surg, Kitakyushu, Fukuoka 807, Japan
关键词
micro-CT; fracture; osteoporosis; surface density; three-dimensional structure; trabecular number;
D O I
10.1016/S8756-3282(98)00083-0
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Iliac bone samples were obtained from 50 women with osteoarthrosis of the hip (50-80 years of age) during hip surgery for total hip joint replacement. After determining the resolution and threshold for the binary image, the two-dimensional (2D) and three-dimensional (3D) data of the trabecular structure were obtained in these iliac bone samples using microcomputed tomography (micro-CT). Conventional histomorphometry was then performed. Both 2D and 3D parameters of the trabecular structure were significantly correlated with the parameters of conventional histomorphometry (r = 0.63-0.86 in 2D analysis, and r = 0.60-0.77 in 3D analysis). The patients mere classified into the non-spinal-fracture group (n = 36) and the spinal fracture group (n = 14). There was no significant difference in patient age between the two groups. The parameter values of bone mass, such as 2D fractional trabecular bone area and 3D fractional bone volume, and the values of trabecular number (Tb,N) in terms of both 2D and 3D analyses mere significantly smaller, and those of trabecular separation (Tb,Sp) mere significantly higher in the spinal fracture group than in the non-spinal-fracture group. Trabecular thickness (Tb,Th) values did not significantly differ between the two groups, There was no significant difference between 2D and 3D parameters in discriminating the spinal fracture group from the non-spinal-fracture group. However, 3D analysis demonstrated that the value of the bone surface to bone volume (BS/BV) ratio could discriminate between these two groups, These data demonstrated that micro-CT can evaluate the 3D structure of the human iliac hone, and that decreases in the parameters of the SD-structure-related bone surface density as well as decreases in trabecular bone volume are related to osteoporotic fracture, (Bone 23:163-169; 1998) (C) 1998 by Elsevier Science Inc. All rights reserved.
引用
收藏
页码:163 / 169
页数:7
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