Neumayer B
Staatliche Studienakademie, Berufsakademie Stuttgart.
Laryngorhinootologie. 1994 May;73(5):277-81. doi: 10.1055/s-2007-997130.
Tapping screws of the Medicon system were checked for their mechanical strength by a time-torque curve and a new measurement system. To simulate a real situation three types of screws were applied. The predrill was 80% of the kernel diameter. The percentage of demolition was significantly higher with longer screws because there was a typical tilting of screws in aluminium. All tested screws had double the minimum fracture moment of 43 Ncm. Fracture of the screws occurred at about triple the torque of the maximal moment in the bones.
通过时间-扭矩曲线和一种新的测量系统，对Medicon系统的自攻螺钉的机械强度进行了检查。为模拟实际情况，使用了三种类型的螺钉。预钻孔直径为螺芯直径的80%。较长的螺钉拆除百分比显著更高，因为在铝中螺钉存在典型的倾斜现象。所有测试螺钉的最小断裂力矩为43 Ncm的两倍。螺钉在骨骼中的断裂扭矩约为最大力矩扭矩的三倍。
