Dynamic lumbar spinal stenosis : the usefulness of axial loaded MRI in preoperative evaluation.

Abstract:

:Two cases of dynamic lumbar spinal stenosis were identified by the authors using axial loaded magnetic resonance image (MRI). In both cases, the patients presented with neurogenic claudication but MRI in decumbency showed no definite pathologic condition associated with their symptoms. In contrast, axial loaded MRI demonstrated constrictive spinal stenosis and a significantly decreased dural sac caused by epidural fat buckling and thickening of the ligamentum flavum in both cases. In the second case, a more prominent disc protrusion was also demonstrated compared with decumbent MRI. After decompressive surgery, both patients had satisfactory outcomes. Axial loaded MRI can therefore give decisive information in dynamic spinal disorders by allowing simulation of an upright position.

journal_name

J Korean Neurosurg Soc

authors

Choi KC,Kim JS,Jung B,Lee SH

doi

10.3340/jkns.2009.46.3.265

subject

Has Abstract

pub_date

2009-09-01 00:00:00

pages

265-8

issue

3

eissn

2005-3711

issn

1598-7876

journal_volume

46

pub_type

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