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三维有限元腰椎节段模型上模拟拨伸按压手法的生物力学分析 被引量:36

Biomechanical analysis of simulating pulling, extension and compression on the three-dimensional finite element model of lumbar segments
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摘要 背景:应用计算机技术和有限元法对传统中医推拿手法进行研究,给传统的中医推拿手法研究注入了活力。目的:分析手法治疗腰椎间盘突出症的机制,探求符合生物力学的治疗手法,明确手法治疗腰椎疾患的安全范围。方法:选择成年无腰椎疾患的男性志愿者,年龄28岁,身高170cm,体质量60kg。采用CT对L3~S1进行扫描,利用ADINA5.0构件软件,并赋予不同组织不同的材料属性,建立腰椎有限元模型,设定腰椎水平位、后伸10°位、前屈30°位状态,加载拔伸按压载荷,观察腰椎间盘、髓核和纤维环的受力改变情况。结果与结论:在拔伸按压状态下,腰椎前屈30°椎间盘组织的位移应变和应力变化最明显,提示在设定的条件下手法治疗腰椎疾患是安全的。 BACKGROUND: Computer and finite element methods have been used to explore manipulation treatment. OBJECTIVE: To explore the mechanism of manipulation treatment of lumbar intervertebral disc protrusion, investigate a way consistent with the treatment of biomechanics and confirm the safety scope of the manipulation of lumbar disorders. METHODS: One adult male volunteer with no spinal disorders, aged 28 years, 170 cm height and 60 kg body mass was subjected to CT scanning of the L3-S1 using Adina component-based software, and assigned different materials attributes to different tissues to establish lumbar spine finite element model. The level of lumbar spine position, extension 10 °, flexion 30 ° were set and subjected to pulling, extension and compression loads to observe force change of lumbar intervertebral disc, nucleus pulposus and annulus fibrosus. RESULTS AND CONCLUSION: Under pulling, extension and compression states, the intervertebral disc displayed the most obvious displacement, strain and stress changes at lumbar flexion 30 °, suggesting treatment of lumbar spinal disorders is safe in certain conditions.
出处 《中国组织工程研究与临床康复》 CAS CSCD 北大核心 2010年第22期4000-4004,共5页 Journal of Clinical Rehabilitative Tissue Engineering Research
基金 甘肃省中医药管理局2008年立项课题~~
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