作者设计了双颈滑动加压螺纹钉。
The authors designed a double barrele sliding compression screw.
目的：比较不同直径加压螺纹钉内固定股骨颈骨折的效果。
Objective: To evaluate the effect of compression screws with different diameters on fixation strength of femoral neck fracture.
方法：应用中空双头加压螺纹钉加折断式螺钉治疗股骨颈骨折。
Method: Treatment of femoral neck fractures using hollow double ends compressive screws and breaking screws.
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