股骨颈支架钉的研制与实验性力学比较  

AN EXPERIMENTAL ANALYSIS OF THE FEMORAL NECK SUPPORTING NAIL

作　　者：邓光荣[1] 魏兆文 胡永生[1] 刘蔡波[1] 

机构地区：[1]深圳市宝安区人民医院骨科,518101

出　　处：《医用生物力学》1999年第1期58-61,共4页Journal of Medical Biomechanics

摘　　要：本支架钉，根据股骨近端骨小梁结构特点并遵循生物力学原理设计，利用特制的上、下两钉，在特制的导向器协助下，分别经张力层和压缩层使两钉端在股骨头内穿榫组合，形成仰角三角支架结构。实验分析采用尸体骨，随机分5种内固定组，结果支架钉在载荷2608牛顿时无结构性改变。具有较好的内－外翻稳定性和抗剪切移位的轴向稳定性。A supporting nail was designed according to the biomechanic principle and the feature of structure of bone trabecula of upper femur with an aid of guiel-pin, the upper and lower nail, passed through the compression group and tension group respectively and interlocked in the femoral head. The supihe triangular supporting frame was formed. The loading force line was re-established. Studies of experimental mechanics in vitro was performed on the cadava femur samples, which were divided randomly in 5 groups No changes of bone structure occured when the supporting nail was loaded over 2608 Newtons. The exprimental results shows the supporting nail has excellent stability of yarns or valgus motion and the axis of anti shearing dislocation.

关 键 词：股骨颈骨折 支架钉 生物力学 

分 类 号：R683.420.5[医药卫生—骨科学] R318.01[医药卫生—外科学]