预应力法在转子动力学问题的研究中可进一步拓展。
The prestress method should be developed in the study of the rotor dynamics problems.
目的：探讨应用动力髋螺钉治疗老年股骨转子间骨折的临床疗效。
Objective: To investigate the effects of dynamic hip screw in the treatment of senile intertrochanteric fracture.
目的：探讨动力髋螺钉（DHS）治疗股骨转子周围骨折的疗效及所致并发症的原因。
Objective: To study the clinical outcomes and the reasons of complications of treatment of peritrochanteric fracture of the femur with the dynamic hip screw(DHS).
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