股骨髁部Y型骨折不同内固定方式的生物力学研究  

BIOMECHANICAL STUDY OF SEVERAL INTERNAL FIXATION METHODS IN FEMORAL CONDYLAR FRACTURES

作　　者：张元智[1] 谷诚[2] 梅芳瑞[2] 周军海[2] 

机构地区：[1]解放军第322医院 [2]第三军医大学新桥医院

出　　处：《解放军医学杂志》2001年第11期833-834,共2页Medical Journal of Chinese People's Liberation Army

摘　　要：为了给临床选择有效的内固定方式提供实验数据 ,作者采用成人新鲜尸体股骨髁部标本 ,按照AO/ASIF分类模拟Y型骨折模型 ,以 5种常用内固定方式 ,置于WD 10E万能电子力学实验机上测定其抗剪切、抗扭转强度 ,并进行生物力学比较研究。结果表明 ,动力加压髁螺钉 (DCS)强度最大 ,普通松质骨螺钉加骨栓固定强度最小 ,T型钢板加松质骨加压螺钉同L型钢板强度相近 。Y type of fracture was produced in distal end of fresh adult human cadaver femur, and five internal fixation methods were tested for anti shear and anti torsion strength with the WD 10E machine.The results indicated that the fixation intensity of cancellous screw and bone stud was the weakest, and that of the dynamic condylar screw was the strongest.The intensity of L type plate and T type plate with the addition of cancellous or cortical compression screw were stronger than that of cancellous screw.

关 键 词：生物力学 骨折内固定术 股骨骨折 髁部Y型骨折 

分 类 号：R683.42[医药卫生—骨科学] R687.32[医药卫生—外科学]