|
|
|
Journal of Korean Neurosurgical Society 1993;22(1): 63-70. |
| Y-Angle Stenosis of Lumbar Spine: New Concept of Lumbar Stenosis. |
| Young Soo Kim, Yong Eun Cho, Hyung Chun Park, Doh Heum Yoon, Sung Woo Roh |
| Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Korea. |
|
|
|
|
|
| ABSTRACT |
|
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 degrees and 95 degrees. Lumbar stenosis is classified into narrow Y-angle stenosis(<60 degrees) and wide Y-angle stenosis(>95 degrees) 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. |
| Key Words:
Lumbar stenosis; Y-angle; Narrow Y-angle stenosis; Wide Y-angle stenosis |
|
|
|
Full text via DOI 
Download Citation 
