金属松质骨螺钉拔出力的研究  

Research on pull-out strength of metallic cancellous screws

作　　者：刘志礼[1] 舒勇[1] 许永武[1] 

机构地区：[1]江西医学院第一附属医院骨科第一病区,南昌市330006

出　　处：《中华创伤骨科杂志》2004年第8期918-920,共3页Chinese Journal of Orthopaedic Trauma

摘　　要：金属松质骨螺钉是应用于骨折内固定最广泛的材料之一,临床上有许多螺钉的松动、脱出导致内固定的失败的病例报道。螺钉的松动、脱出与螺钉的拔出力有关。螺钉拔出力与螺钉的材料、螺纹的几何形态、骨质量、螺钉操作技术等密切相关。Metallic cancellous screw is one of the fixation devices widely used for bone fractures. It has always been reported that many cases of internal fixation failed just because of screw loosening or pullout. The stability of fixation is associated with the pullout strength of screws. The pullout strength strongly depends on the geometrical design of the screw thread, the material and the insertion technique of the screw, and the bone mineral density of the insertion site of the screw.

关 键 词：金属松质骨螺钉 拔出力 骨折 内固定 

分 类 号：R687.32[医药卫生—骨科学]