Objective To investigate the effects of the number of the screw in dynamic compression plates on the stability of plate and screw structure in torsion.

一块十二孔的动力加压钢板对称性固定，在材料试验机上进行扭转实验。

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Objective To study the effect of the number of screws on the bending stiffness and dynamic compression plate (DCP) strain in a transverse fracture model in vitro.

目的研究体外模拟横断骨折模型中螺钉数量对动力加压钢板(DCP)应变和弯曲刚度的影响。

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Objective: To compare the curative effect of dynamic compression plate(DCP) and locking compression plate(LCP) in curing fractures of middle-inferior humerus and application.

目的：比较锁定加压钢板和动力加压钢板治疗肱骨中下段骨折的疗效及其应用选择。

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