肱骨髁上部的光弹性实验及有限元分析研究  

A STUDY ON SUPRACONDYLAR PART OF HUMERUS WITH THE METHODS OF TWO DIMENSIONAL PHOTOELASTICITY AND THREE DIMENSIONAL FINITE ANALYSS

作　　者：刘献祥[1] 王和鸣[1] 张文光[1] 陈日齐[2] 陈鲁峰[3] 张建新[4] 

机构地区：[1]福建中医学院,福州350003 [2]福州大学 [3]漳州市中医院 [4]泉州市中医院

出　　处：《医用生物力学》1999年第1期16-19,共4页Journal of Medical Biomechanics

基　　金：国家自然科学基金!39300176

摘　　要：采用二维光弹性实验和三维有限元计算分析法研究肱骨髁上部的力学特性。表明：①旋后位肱骨髁上部内侧是压应力，外侧是拉应力冲立位、旋前位与此相反。①旋后位、中立位、旋前位三种不同位置的剪应力变化不大。③在旋后位肱骨髁上部不论是内侧还是外侧节点均向内侧位移；中立位、旋前位与旋后位正相反，均向外侧位移。结合Saltel理论，作者提出了肱骨髁上骨折合理的固定方法。In this paper, the mechanical properties of supracondylar part of humerus were studied with the experimental methods of two dimensional photoelasticity and three dimensional finite element analyse. The results showed that' O In the supinator position,there was conpressive stress in the medial side, while there was tensile stress in the lateral side. In the pronator and neutral position, the result was contrary to it. @The shearing stress in supinator, pronator and neutral position didn' t change much. ③In the supinator position, there was medial displacement in the medial and lateral sides. In the prnator and neutral position, the result was contrary to it, but the displacement hadn' t significat difference in both sides. Integrating with Salterl's theory, the authors suggest the rational fixation methods for the fractures of supracondyle of humerus.

关 键 词：骨折 肱骨髁上部骨折 二维光弹性 三维有限元 

分 类 号：R683.41[医药卫生—骨科学] R318.01[医药卫生—外科学]