Study of the behavior of the trabecular bone under cyclic compression with stepwise increasing amplitude

被引：15

作者：

Topolinski, Tomasz ^{[1
]}

Cichanski, Artur ^{[1
]}

Mazurkiewicz, Adam ^{[1
]}

Nowicki, Krzysztof ^{[1
]}

机构：

[1] Univ Technol & Life Sci, Fac Mech Engn, PL-85796 Bydgoszcz, Poland

来源：

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2011年 / 4卷 / 08期

关键词：

Trabecular bone; Testing method; Fatigue damage; Stepwise load; Bone structure indices; HUMAN CORTICAL BONE; CANCELLOUS BONE; FATIGUE BEHAVIOR; MECHANICAL-BEHAVIOR; FORMALIN FIXATION; TENSILE FATIGUE; CREEP STRAIN; FAILURE; DAMAGE; STRENGTH;

D O I：

10.1016/j.jmbbm.2011.05.032

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This paper presents the results of a study of 61 trabecular bone samples exposed to a cyclic (1 Hz) compression load. The load was increased stepwise. Characteristic patterns of the hysteresis loop for the middle cycles of successive steps of load and for respective steps of load are presented. Characteristic patterns of secant modulus were also determined. The fatigue life results recorded were compared with the indices of bone architecture determined using micro-CT. Using Pearson's correlation, the best relationship between fatigue life and bone volume ratio (BV/TV) and the maximum load for which there was also reported a maximal value secant stiffness were identified. Based on these findings, it was determined that it is possible to use stepwise increasing load for analysis of the fatigue behavior of trabecular bone. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1755 / 1763

页数：9

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