OBJECTIVE: To investigate the impact of axial load on lumbar dural sac.
目的：实验拟探讨轴向负荷对腰椎硬膜囊的影响。
AP dural sac diameter on axial and midsagittal images showed a similar tendency.
前后径在轴位和正中矢状位上呈现相似的变化趋势。
No bony canal stenosis, but a widened dural sac at lower lumbar and sacral level.
无骨性椎管狭窄，但是在下腰部和骶椎层面硬膜囊增宽。
On midsagittal images, AP dural sac diameter and the upper-endplate angles of L1 and S1 were measured.
在正中矢状位图像上测量了L1和S1水平的硬脊膜囊的前后径和上终板角。
Results The nerve roots within the lumbar dural sac were arranged loosely with the sacral and coccygeal nerve roots to form the cauda equina.
结果腰骶部各节段的前根漂浮在脑脊液中下行，与后根一起构成马尾神经。
Results. We found a disc degeneration or disc protrusion in 41% (12/29) of the subjects, but there was no obvious compression of the dural sac.
研究结果：我们发现41%（12/29）的受试者存在椎间盘的突变或者突出，但都未明显压迫硬脊膜囊。
Conclusion. We report a rare case of traumatic lumbar disc rupture into the dural sac associated with a mild vertebral body compression fracture.
结论：我们报告一例罕见的外伤性腰椎间盘破裂进硬膜囊内并一个轻微的椎体压缩骨折案例。
Magnetic resonance imaging revealed a well-defined, oval mass lesion on the left dorsal aspect of the spinal canal, which compressed the dural sac at the level of C7.
磁共振显示在椎管背侧左边有一个边界清楚，椭圆形的块状病变，在C7平面压迫硬膜囊。
Conclusion Spiral ct can clearly show the lumbar disc and its direction, extent, and dural sac, nerve root compression case, the diagnosis of lumbar disc herniation has a higher value.
结论螺旋CT能清楚显示腰椎间盘突出及其方向、程度以及硬膜囊、神经根受压情况，对诊断腰椎间盘突出症有较高的价值。
Objectives. To describe a rare case of traumatic lumbar disc rupture into the dural sac associated with a mild vertebral body compression fracture and review the pertinent medical literature.
目的：为了描述一个罕见的案例，外伤性腰椎间盘破裂进硬膜囊并一个轻微的椎体压缩骨折，并回顾相关的医学文献。
CT and MRI of 28 cases with protrusion of lumbar disk in surgical. Findings of bulging and herniation by CT and MRI as well pressed, shift, deformed, calcification, vacuum of dural sac and nerve root.
报道经手术证实的28例腰椎间盘突出患者的CT和MRI所见，观察到腰椎间盘膨隆和间盘疝的CT和MRI表现及其所引起的硬膜囊和神经根受压，移位，变形，钙化，真空征等伴随异常。
CT and MRI of 28 cases with protrusion of lumbar disk in surgical. Findings of bulging and herniation by CT and MRI as well pressed, shift, deformed, calcification, vacuum of dural sac and nerve root.
报道经手术证实的28例腰椎间盘突出患者的CT和MRI所见，观察到腰椎间盘膨隆和间盘疝的CT和MRI表现及其所引起的硬膜囊和神经根受压，移位，变形，钙化，真空征等伴随异常。
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