As it is mentioned in many studies that one major advantage of the backward sliding mechanism of lag screw is controlled compression of fracture with weight bearing which helps in healing of fracture.

正如多数研究所提到的拉力螺钉的一个主要优点是反向滑动机制，能在负重条件下对骨折施加控制性加压，促进骨折的愈合。

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The author designed a newtype compression intramedullary locking screw with dynamic stability, which is extensively used in the hospital for femoral fracture.

本院研制的新型交锁加压髓内钉能广泛应用于股骨干稳定与不稳定骨折，且具有动力稳定性。

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Objective To discuss clinical effects of DCS(dynamic compression screw)in treatment of type C fracture of femoral condyle.

目的探讨动力髁钉板（DCS）内固定治疗股骨髁C型骨折的临床疗效。

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