CAJ | 학술논문

目的：：探讨腰椎牵引过程中不同腰椎间盘对应的最优牵引角度，为新型腰椎牵引设备的开发提供依据。方法：基于人体腰椎医用 CT 图像构建人体全腰椎三维有限元模型，利用 Ansys 软件，遵循优化设计的方法，定义牵引角度为设计变量，以各节段腰椎间盘伸长量最大值为目标函数，以最大许用应力为状态变量，求得牵引治疗中各节段腰椎间盘的最优牵引角度。结果与结论：腰椎间盘 L5/ S1、L4/ L5、L3/ L4、L2/ L3、L1/ L2对应的最优牵引角度分别为斜向上10°、15°、20°、23°和25°。该方法不仅可以指导腰椎间盘突出症的治疗，而且可以为脊柱牵引治疗系统的开发提供依据。
목적：：탐토요추견인과정중불동요추간반대응적최우견인각도，위신형요추견인설비적개발제공의거。방법：기우인체요추의용 CT 도상구건인체전요추삼유유한원모형，이용 Ansys 연건，준순우화설계적방법，정의견인각도위설계변량，이각절단요추간반신장량최대치위목표함수，이최대허용응력위상태변량，구득견인치료중각절단요추간반적최우견인각도。결과여결론：요추간반 L5/ S1、L4/ L5、L3/ L4、L2/ L3、L1/ L2대응적최우견인각도분별위사향상10°、15°、20°、23°화25°。해방법불부가이지도요추간반돌출증적치료，이차가이위척주견인치료계통적개발제공의거。
Aim: To explore the corresponding optimal traction angle of different lumbar intervertebral disc during trac-tion, and to supply basis for the developing of new lumbar traction equipment. Methods: The three-dimensional finite ele-ment model of human lumbar spine segment from L1 / L2 to L5 / S1 was reconstructed based on medical CT images; and then through the optimal design method in Ansys,by defining the traction angle as the design variable, maximum elongation of each segment of lumbar as the objective function and the maximum allowable stress as the state variable, it came to a con-clusion that there were some optimal traction angles of each lumbar discs in traction treatment. Results and Conclusion:The simulations reveal that the optimal traction angles for L5 / S1,L4 / L5,L3 / L4,L2 / L3 and L1 / L2 are oblique upward 10°,15°,20°,23° and 25°, respectively;this method can not only guide the treatment of lumbar disc herniation, but also provide the basis for the developing of new spinal traction treatment system.