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.
出处
《医用生物力学》
EI
CAS
CSCD
1999年第1期58-61,共4页
Journal of Medical Biomechanics
关键词
股骨颈骨折
支架钉
生物力学
Femoral neck fracture, component nail. biomechanics
