QUANTITATIVE MEASURES FOR FRACTURE-HEALING - AN INVITRO BIOMECHANICAL STUDY

被引:13
作者
FOUX, A
BLACK, RC
UHTHOFF, HK
机构
[1] NATL RES COUNCIL CANADA,OTTAWA K1A 0R6,ONTARIO,CANADA
[2] UNIV OTTAWA,OTTAWA K1N 6N5,ONTARIO,CANADA
[3] OTTAWA GEN HOSP,OTTAWA K1H 8L6,ONTARIO,CANADA
来源
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 04期
关键词
D O I
10.1115/1.2891203
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
A method is presented to assess the functional capabilities of plated osteotomized canine femora as load bearing structures and to quantify their healing status. In this method the osteotomized bones and their intact contralateral controls are tested in nondestructive bending, in twenty-four planes of loading at 15 degree angular increments. Flexural rigidity (EI), in each of the planes, is determined by using classical beam theory. It has been found that the EI values have the expected elliptical distribution. The 24 EI values, obtained for each bone, are curve fitted by regression analysis and the characteristics of each bone are described by the three parameters defining its ellipse. The parameters of the ellipses of the osteotomized bone and of its contralateral control are used to define four new parameters that may serve as measures for the healing efficiency. One of these serves as an indicator for the fragility of the healed bone and the other three add quantiative information on its mechanical state. © 1990 by ASME.
引用
收藏
页码:401 / 406
页数:6
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