CAJ | 학술논문

目的：研究振动应力促进骨重建的最佳频率。方法：应用可调脉冲频率的振动应力刺激仪，对43只家兔尺骨骨折进行不同频率应力刺激。行扫描电镜观察与生化分析。结果：低频应力(10～50HZ)骨痂内胶原蛋白含量、钙、磷沉积量较大，与高频应力(60～100HZ)相比，差别显著(P＜0.01)。扫描电镜显示，低频应力下骨痂中血肿吸收快速、骨母细胞增生活跃、骨小梁胶元纤维排列有序、毛细血管分布密集。结论：超微结构与生化分析显示，振动应力有利于骨痂的成熟与改建，其最佳频率在10～50HZ的低频段。
목적：연구진동응력촉진골중건적최가빈솔。방법：응용가조맥충빈솔적진동응력자격의，대43지가토척골골절진행불동빈솔응력자격。행소묘전경관찰여생화분석。결과：저빈응력(10～50HZ)골가내효원단백함량、개、린침적량교대，여고빈응력(60～100HZ)상비，차별현저(P＜0.01)。소묘전경현시，저빈응력하골가중혈종흡수쾌속、골모세포증생활약、골소량효원섬유배렬유서、모세혈관분포밀집。결론：초미결구여생화분석현시，진동응력유리우골가적성숙여개건，기최가빈솔재10～50HZ적저빈단。
Objective: In order to study the effect of different vibration frequency to fracture healing.Methods:The fractured ulna of 43 rabbits were stimulated by vibration stress force of different frequency.The samples of ulna were observed by using scaning electron microscope(SEM)and were analysed by using biochemistrical method.Results:The results indicated that the collagens、calcium、phosphorus content of callus in lower frequency groups were higher than in higher freuency groups,and it showed significant difference between these two groups.SEM results indicated that lower frequency vibration stress force prompted the haematoma absorbability、osteoblast proliferation、ostetrabecula and collagens in order、blood vessel proliferation.Conclusion:The vibration stress force prompt maturation and reconstrution of callus.and the optimum frequency is 10～50HZ.