郑州大学学报(医学版)
鄭州大學學報(醫學版)
정주대학학보(의학판)
JOURNAL OF ZHENGZHOU UNIVERSITY(MEDICAL SCIENCES)
2014年
1期
119-122
,共4页
刘治华%徐新伟%管文浩%黄玉锋%王晓东%苏建勇
劉治華%徐新偉%管文浩%黃玉鋒%王曉東%囌建勇
류치화%서신위%관문호%황옥봉%왕효동%소건용
腰椎%有限元模型%牵引%椎间距%仿真
腰椎%有限元模型%牽引%椎間距%倣真
요추%유한원모형%견인%추간거%방진
lumbar spine%finite element model%traction%intervertebral distance%simulation
目的:探讨不同角度牵引对腰椎间盘的影响。方法:基于医用CT图像建立人体腰椎L1~5、S1节段的三维有限元模型,模型共有148943个节点,91636个单元。对模型施加320 N的牵引力,模拟人体平躺时斜向上0°、5°、10°、15°、20°和25°牵引。结果:与其他几个牵引角度相比,当斜向上10°牵引时,椎间盘L4/5伸长量最大,为2.42 mm;斜向上15°牵引时,椎间盘L3/4伸长量最大,为2.44 mm;斜向上20°牵引时,椎间盘L2/3伸长量最大,为2.43 mm;斜向上25°牵引时,椎间盘L1/2伸长量最大,为2.46 mm。结论:通过调整牵引角度可以对病变的腰椎间盘进行有针对性的治疗。
目的:探討不同角度牽引對腰椎間盤的影響。方法:基于醫用CT圖像建立人體腰椎L1~5、S1節段的三維有限元模型,模型共有148943箇節點,91636箇單元。對模型施加320 N的牽引力,模擬人體平躺時斜嚮上0°、5°、10°、15°、20°和25°牽引。結果:與其他幾箇牽引角度相比,噹斜嚮上10°牽引時,椎間盤L4/5伸長量最大,為2.42 mm;斜嚮上15°牽引時,椎間盤L3/4伸長量最大,為2.44 mm;斜嚮上20°牽引時,椎間盤L2/3伸長量最大,為2.43 mm;斜嚮上25°牽引時,椎間盤L1/2伸長量最大,為2.46 mm。結論:通過調整牽引角度可以對病變的腰椎間盤進行有針對性的治療。
목적:탐토불동각도견인대요추간반적영향。방법:기우의용CT도상건립인체요추L1~5、S1절단적삼유유한원모형,모형공유148943개절점,91636개단원。대모형시가320 N적견인력,모의인체평당시사향상0°、5°、10°、15°、20°화25°견인。결과:여기타궤개견인각도상비,당사향상10°견인시,추간반L4/5신장량최대,위2.42 mm;사향상15°견인시,추간반L3/4신장량최대,위2.44 mm;사향상20°견인시,추간반L2/3신장량최대,위2.43 mm;사향상25°견인시,추간반L1/2신장량최대,위2.46 mm。결론:통과조정견인각도가이대병변적요추간반진행유침대성적치료。
Aim: To explore the effect of traction in different angles on lumbar discs traction in different angles . Methods:A three-dimensional finite element model of human lumbar segments L 1~5 ,and S1 was established based on med-ical CT images , and there were 148 943 nodes and 91 636 units in the model .Forces of two groups which size were respec-tively 320 and 200 N were exerted on the model based on clinical experience to simulate the traction under different traction angles such as 0°,5°,10°,15°,20°and 25°when the human body was lying down .Results:When the traction angle was 10°,the change of L4/5 was the largest,which was 2.42 mm;when the traction angle was 15°,the change of L3/4 was the lar-gest,which was 2.44 mm;when the traction angle was 20°,the change of L2/3 was the largest,which was 2.43 mm;When the traction angle was 25°,the change of L1/2 was the largest,which was 2.46 mm.Conclusion:The specific lesion of in-tervertebral discs can be better treated by adjusting the traction angle .