OBJECTIVES: To describe the underlying causes, surgical results and prognostic factors in @entity850 causing @entity602 . METHODS: The underlying causes and surgical results were analyzed retrospectively in 28 cases of @entity612 which caused @entity602 . @entity179 was the most common cause, and three cases were associated with @entity262 . Decompressive laminectomy was performed in 24 cases, anterior decompression in five cases, and combined decompression in one case. Ossification of ligamentum flavum was found in 18 cases, facet @entity1184 in 13, @entity3057 in six, and ventral spur in four. Postoperatively 16 @entity1 improved and four @entity1 worsened. Follow-up ranged from 2 months to 5 years and 8 months). Statistical analysis was performed using a chi(2) test to investigate the relationship between subjects. Multivariant analysis (general linear model) was used to determine the factors which influence surgical outcome. RESULTS: There were neurological improvements in 16 @entity1 , in whom Nurick grade changed from 3.3 preoperatively to 1.8 postoperatively. Eight @entity1 showed no significant change in functional grade and four @entity1 deteriorated after decompressive laminectomy. The group of which initial symptom duration was less than 2 years showed better results (P=0.006). The group with sufficient decompression and no additional proximal @entity850 had better treatment outcome (P=0.005, P=0.002). CONCLUSION: Chronic severe @entity602 caused by @entity612 can be reversible with appropriate decompression. Surgical outcome was dependent on initial symptom duration, sufficient decompression and presence of additional proximal @entity850 . SPONSORSHIP: This study was supported by a grant No. 02-1997-071-0 from the Seoul National University Hospital Research Fund.

Surgical treatment for XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity612 :: ('MESH:D013130', 'Disease') :: ['thoracic spinal stenosis'] @entity1184 :: ('MESH:D006984', 'Disease') :: ['hypertrophy'] @entity602 :: ('MESH:D013118', 'Disease') :: ['myelopathy'] @entity262 :: ('MESH:D034721', 'Disease') :: ['systemic diseases'] @entity179 :: ('MESH:D019636', 'Disease') :: ['Degenerative spondylosis'] @entity850 :: ('MESH:D003251', 'Disease') :: ['stenosis', 'thoracic stenosis'] @entity3057 :: ('MESH:D017887', 'Disease') :: ['ossification of posterior longitudinal ligament']
@entity612 :: (MESH:D013130,Disease) :: ['thoracic spinal stenosis']
