[1]王 星,張振宇,付兆君.腰椎峽部裂生物力學三維有限元分析[J].醫學信息,2019,(22):166-167.[doi:10.3969/j.issn.1006-1959.2019.22.058]
 WANG Xing,ZHANG Zhen-yu,FU Zhao-jun.Three-dimensional Finite Element Analysis of Lumbar Spondylolysis Biomechanics[J].Medical Information,2019,(22):166-167.[doi:10.3969/j.issn.1006-1959.2019.22.058]
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腰椎峽部裂生物力學三維有限元分析()
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醫學信息[ISSN:1006-1959/CN:61-1278/R]

卷:
期數:
2019年22期
頁碼:
166-167
欄目:
診療技術
出版日期:
2019-11-15

文章信息/Info

Title:
Three-dimensional Finite Element Analysis of Lumbar Spondylolysis Biomechanics
文章編號:
1006-1959(2019)22-0166-02
作者:
王 星張振宇付兆君
(空軍特色醫學中心,北京 100142)
Author(s):
WANG XingZHANG Zhen-yuFU Zhao-jun
(Air Force Characteristic Medical Center,Beijing 100142,China)
關鍵詞:
腰椎峽部裂屈伸運動三維有限元
Keywords:
Lumbar spondylolysisFlexion and extension movementThree-dimensional finite element
分類號:
R687.3
DOI:
10.3969/j.issn.1006-1959.2019.22.058
文獻標志碼:
A
摘要:
目的 建立腰椎三維有限元模型,模擬分析不同運動狀態下腰椎峽部的應力分布,探討腰椎峽部裂滑脫產生的病理基礎及力學機制。方法 選取成年男性志愿者1名,采用64排螺旋CT行腰部斷層掃描,所得圖像通過MIMICS軟件處理優化,導入有限元分析軟件,建立腰椎三維有限元模型(L1~L5),分析不同姿勢下腰段脊柱椎弓峽部的受力及變形情況。結果 腰椎峽部在前屈、后伸位均出現明顯的應力集中,后伸位更為明顯,應力值由L1~L5向下逐漸加大。結論 腰椎峽部在后伸運動間,峽部應力異常集中,這種運動狀態是產生后天性腰椎峽部裂及進一步滑脫病變的重要病理基礎,雙側L5峽部裂在后伸位受到應力最大,活動度異常加大,最易產生滑脫病變。
Abstract:
Objective To establish a three-dimensional finite element model of lumbar spine, simulate the stress distribution of lumbar isthmus under different motion states, and explore the pathological basis and mechanical mechanism of lumbar spondylolisthesis. Methods One adult male volunteer was selected and 64-slice spiral CT was used for lumbar tomography. The images were optimized by MIMICS software. The finite element analysis software was introduced to establish a three-dimensional finite element model of lumbar spine (L1~L5). The force and deformation of the spinal canal isthmus. Results In the lumbar isthmus, there was obvious stress concentration in the flexion and extension, and the posterior extension was more obvious. The stress value gradually increased from L1~L5. Conclusion During the posterior extension of the lumbar isthmus, the isthmus stress is abnormally concentrated. This state of motion is an important pathological basis for the generation of acquired lumbar spondylolysis and further spondylolisthesis. The bilateral L5 isthmus is the most stressed and active in the posterior extension. Increase, the most likely to produce slippage lesions.

參考文獻/References:

[1]孔慶奎,張立濤,謝元忠,等.椎弓峽部裂在腰腿疼痛患者中的患病率及其與椎體滑脫的相關性[J].臨床放射學雜志,2015, 30(11):1666-1669. [2]李危石,孫卓然,陳仲強.正常國人脊柱一骨盆矢狀位參數影像學研究[J].中華骨科雜志,2013,33(5):447-453. [3]張海龍,顧昕,賀石生,等.微創經椎間孔椎體間融合術與開放手術治療腰椎滑脫癥的療效比較[J].中華骨科雜志,2011,31(10):1088-1092. [4]孫魯琨,許春濤,劉華等.“U”形鈦棒系統節段內固定聯合峽部植骨治療單純性腰椎峽部裂[J].中國組織工程研究,2018,22(15):2340-2344. [5]張文志,丁英勝,段麗群,等.退變性腰椎滑脫的關巧突關巧形態學分析[J].中華骨科雜志,2015,35(8):865-870.

更新日期/Last Update: 2019-11-15
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