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KMID : 0359819930220010063
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Journal of Korean Neurosurgical Society
1993 Volume.22 No. 1 p.63 ~ p.70
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Y-Angle Stenosis of Lumbar Spine
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김영수
조용은/박형천/윤도흠/노성우
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Abstract
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Authors measured the Y-shaped angle made by both yellow ligaments and both laminae named Y-angle at the spinal CT scan in normal and lumbar stenosis group. The normal range of Y-angle is between 60° and 95°. Lumbar stenosis is classified into
narrow
Y-angle stenosis (<60°) and wide Y-angle stenosis (>95°) by Y-angle. Narrow Y-angle stenosis is most common in degenerative spondylotic stenosis Wide Y-angle is most common in congenital stenosis.
The Y-angle is a simple and useful diagnostic indicator in the diagnosis of lumbar spinal stenosis on CT scan and MRI scan.
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KEYWORD
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