CAJ | 학술논문

目的：研究股骨干简单骨折锁定板( LCP)内固定，选择不同螺钉固定位置，研究锁定板及螺钉最大应力情况。方法通过采集股骨CT数据及锁定板外形数据导入有限元分析( FEA)软件进行装配和求解。结果不同固定方式下锁定板及螺钉上最大应力值均出现在最内侧螺钉处，且随着最内侧固定螺钉的外移，锁定板及螺钉上分布的最大应力均逐渐减小，但减小的趋势逐渐变缓。结论对于股骨干简单骨折锁定板内固定，应在保证固定强度的前提下使最内侧螺钉尽量远离骨折端。
목적：연구고골간간단골절쇄정판( LCP)내고정，선택불동라정고정위치，연구쇄정판급라정최대응력정황。방법통과채집고골CT수거급쇄정판외형수거도입유한원분석( FEA)연건진행장배화구해。결과불동고정방식하쇄정판급라정상최대응력치균출현재최내측라정처，차수착최내측고정라정적외이，쇄정판급라정상분포적최대응력균축점감소，단감소적추세축점변완。결론대우고골간간단골절쇄정판내고정，응재보증고정강도적전제하사최내측라정진량원리골절단。
Objective To research the difference of maximum stress among different positions of screws during the treatment of simple femur shaft fracture by LCP. Method The CT data of femur from healthy volunteers and outline data of LCP were collected, then assembled together and analysed in FEA softwares. Result The maximum stress of LCP and screws are detected from the innermost screw and its corresponding hole, and it decreased while the inner-most screw moves towards outside. Conclusion For the simple femur shaft fractures, the innermost screw should be as far from the fracture as possible on the premise of enough strength of interal fixation.