CAJ | 학술논문

目的：对一种治疗股骨粗隆间不稳定骨折的新型微创动力髋钢板（MIDHP）进行生物力学研究并分析，以验证该新器械的生物力学稳定性，为临床应用该器械提供生物力学依据及理论基础。方法将MIDHP与临床应用比较成熟的股骨近端髓内钉（PFN）在新鲜尸体标本上进行压缩试验、扭转试验及破坏试验的生物力学测试，记录并绘制相应的载荷-位移曲线及扭矩-扭转角度变化曲线，极限载荷，计算压缩刚度、扭转刚度。进行统计学分析。结果两组实验的载荷-位移曲线及扭矩-扭转角度变化曲线相似，压缩刚度及扭转刚度无统计学差异，但在极限抗压载荷上，MIDHP组极限载荷平均值为（3069.80±211.27）N，PFN组极限载荷平均值为（3632.87±164.17）N，具有统计学差异。结论MIDHP在应用于粉碎性股骨粗隆间骨折时具有良好的抗轴压、抗扭转等生物力学特性，符合坚强固定原则，值得应用推广。
목적：대일충치료고골조륭간불은정골절적신형미창동력관강판（MIDHP）진행생물역학연구병분석，이험증해신기계적생물역학은정성，위림상응용해기계제공생물역학의거급이론기출。방법장MIDHP여림상응용비교성숙적고골근단수내정（PFN）재신선시체표본상진행압축시험、뉴전시험급파배시험적생물역학측시，기록병회제상응적재하-위이곡선급뉴구-뉴전각도변화곡선，겁한재하，계산압축강도、뉴전강도。진행통계학분석。결과량조실험적재하-위이곡선급뉴구-뉴전각도변화곡선상사，압축강도급뉴전강도무통계학차이，단재겁한항압재하상，MIDHP조겁한재하평균치위（3069.80±211.27）N，PFN조겁한재하평균치위（3632.87±164.17）N，구유통계학차이。결론MIDHP재응용우분쇄성고골조륭간골절시구유량호적항축압、항뉴전등생물역학특성，부합견강고정원칙，치득응용추엄。
Objective A fresh cadaveric biomechanical testing is conducted with a new minimally invasive dynamic hip plate (MIDHP),which is used in the treatment of unstable intertrochanteric fractures ,aiming to verify the biomechanical stability and to provide a biomechanical and theoretical basis for the clinical application of the de -vice.Methods Compression test,torsion test and destruction test were conducted between the new minimally inva-sive dynamic hip plate group and the proximal femoral nail group .The load-displacement curve, torque-twisting an-gle curve,maximum load,calculated compressive stiffness and torsional stiffness were recorded .Statistical analysis was performed.Results The load-displacement curve and torque-twisting angle curve were similar between the two sets of experiment.No significant difference was observed in the compressive stiffness and torsional stiffness .The average maximum load of MIDHP group was (3069.80 ±211.27) N,while that of the PFN group was 3632.87 ± 164.17N,with a significant difference.Conclusion MIDHP has good resistance to axial compression , torsion and other biomechanical performances while applying to the comminuted intertrochanteric fracture ,and it also complies with the principles of rigid fixation and is worthy of promotion .