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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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横连对单节段短椎弓根螺钉内固定的影响
, PP. 194-197
Keywords: 生物力学,横连,椎弓根螺钉,内固定,胸腰椎
Abstract:
目的测试使用横连在单节段短椎弓根钉内固定中的生物力学稳定性。方法使用10具小牛脊柱标本(T12～L3)模拟体外L1～2椎间盘周围型脊柱结核前路病变椎体切除手术,即切除L1～2间盘和邻近终板,行自体髂骨植骨,后路用单节段短椎弓根螺钉进行固定。测试该模型在不使用横连、使用1根横连、使用2根横连状态下在垂直压缩、侧弯、屈伸和扭转方向上的力学稳定性。结果在扭转载荷下,1根横连组和2根横连组分别与无横连组相比其相对运动范围(RROM)明显降低(P0.05)。结论在扭转方向上横连能够明显增强结构的稳定性能;在单节段短椎弓根螺钉固定中,使用1根横连即能够达到最佳的抗扭转效果。
| [1] | 王自立.病灶清除单节段融合固定治疗脊柱结核[J].中国脊柱脊髓杂 志,2009,19(11):807.
|
| [2] | Cripton PA,Jain GM,Wittenberg RH,et al.Load-Sharing Characteristics of S tabilized Lumbar Spine Segments [J]. Spine,2000,25(2):170-179.
|
| [3] | 罗刚,李长青,腾海军,等. 单节段腰椎小关节分级切除对腰椎稳定性影响的生物力学研究[J]. 第三军医大学学报,2005,27(18):1871-1873.
|
| [4] | Lim TH,Eck JC,An HS,et al. Biomechanics of transfixation in pedicle screw instrumentation [J]. Spine,1996,21:2224-2229.
|
| [5] | Brodke DS,Bachus KN,Mohr RA,et al. Segmental pedicle screw fixation or cross-links in multilevel lumbar constructs. a biomechanical analysis [J]. Spine,2001,1(5):373-379.
|
| [6] | 丁宇,阮狄克,黄文华,等. 横向连接装置在腰椎经椎弓根内固定系统中的作用[J]. 中国临床解剖学杂志,2002,20(6):466-472.
|
| [7] | Dick JC,Zdeblick TA,Bartel BD,et al. Mechanical evaluation of cross-link designs in rigid pedicle screw systems [J].1997,22(4):370-375.
|
| [8] | Kuklo TR,Dmitriev AE,Cardoso MJ,et al. Biomechanical contribution oftransverse connectors to segmental stability following long segment instrumentationwith thoracic pedicle screws[J]. Spine,2008,33(15):E482-487.
|
| [9] | 魏美钢,王坤正,侯德门,等. 椎弓根螺钉器械横杆作用的生物力学研究[J].西安医科大学学报,2002,23(1):47-49.
|
| [10] | Lim TH,Kim JG,Fujiwara A,et al. Biomechanical evaluation of diagonal fix ation in pedicle screw instrumentation[J].Spine,2001,26(22):2498-2503.
|
| [11] | Lynn G,Mukherjee DP,Kruse RN,et al. Mechanical stability of thoracolumbar pedicle screw fixation: the effect of crosslinks [J].Spine,1997,22:15 68-1573.
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