在一些病例里面，腰椎轴向负荷ct和MRI检查可以使隐性腰椎管狭窄显露，而隐性腰椎管狭窄病人的手术效果未被描述过。
Axial loaded ct and MRI have disclosed hidden stenosis in certain cases. The surgical effect in patients with hidden stenosis has never been described.
目的：实验拟探讨轴向负荷对腰椎硬膜囊的影响。
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。
OBJECTIVE: To investigate the impact of axial load on lumbar dural sac.
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