胸腰椎椎弓根钉矢状面进钉角度与棘上韧带关系
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江苏省卫生厅医学重点人才基金资助(R2007060)


The relationship between the sagital srew angle of the thoracolumbar pedicle of vertebral arch and supraspinal ligamen
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    摘要:

    目的:为棘上韧带能作为胸腰椎脊柱手术中椎弓根钉矢状面进钉角度(sagital srew angle ,SSA)的参照标志提供理论依据-方法:对63例结果正常的胸腰椎MRI进行随机抽样,测量出棘上韧带与理论椎弓根钉夹角-结合20例骨折患者的MRI进行统计学分析对比,得出胸10~腰4的椎弓根进钉角度与棘上韧带关系,以此指导手术-结果:在胸10~腰3椎体终板平行线与棘上韧带夹角呈90°,在腰4为82°左右,基本为90°,与椎体骨折与否无显著影响-结论:脊柱椎弓根内固定术中,如果胸10~腰4椎弓根钉与棘上韧带呈90°进钉角度,即SSA为0°,椎弓根钉与椎体终板呈平行关系,棘上韧带有可能作为脊柱手术中SSA的参照标志-

    Abstract:

    Objective:To analyze whether supraspinal ligamen can be the identification marker of the sagital srew angle(SSA) of the pedicle of vertebral arch in the thoracolumbar surgery. Methods:Total of 63 cases of the nomal thoracolumbar MRI and 20 cases of fracture thoracolumbar MRI of patients were included in the study. Supraspinal ligament with the theoretical angle of pedicle of vertebral arch nail was measured and analyzed. The correlation was analyzed between SSA of the pedicle of vertebral arch at the thoracic vertebral 10(T10) and lumbar vertebrae 4(L4) and the supraspinal ligament.. Results:The angle of terminal plate of vertebral body agianst supraspinal ligamen is 90°at T10-L3, and is about 82°at L4,which is nearly to 90°. The angle didn't change before and after thoracolumbar fracture. Conclusion:If the angle of terminal plate of vertebral body agianst supraspinal ligamen is about 90° at T10-L4,the SSA is 0°. In the internal fixation surgery of thoracolumbar fracture, supraspinal ligament can be the identification marker for SSA of the pedicle of vertebral arch in the operation.

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张晓四,曹晓建.胸腰椎椎弓根钉矢状面进钉角度与棘上韧带关系[J].南京医科大学学报(自然科学版),2010,(9):1315-1317

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  • 收稿日期:2010-03-19
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