Document Detail

Hyperostotic lumbar spinal stenosis. A review of 12 surgically treated cases with roentgenographic survey of ossification of the yellow ligament at the lumbar spine.
MedLine Citation:
PMID:  3144759     Owner:  NLM     Status:  MEDLINE    
Although there is considerable literature concerning ossification of the posterior longitudinal ligament or the ligamentous flava (OPLL or OYL) in the cervical and thoracic spine, there are only a few references about OPLL or OYL in the lumbar spine. The authors have described lumbar spinal stenosis due to OPLL or OYL as hyperostotic lumbar spinal stenosis, and analyzed 12 surgically documented cases with this condition. The symptoms and signs of hyperostotic lumbar spinal stenosis are the same as those seen in degenerative lumbar spinal stenosis, but the degree of paraparesis is much more severe in hyperostotic lumbar spinal stenosis. Computed tomography scan imaging clearly demonstrates OPLL or OYL in the lumbar spine, although some lesions can be seen on the lateral view of a plain roentgenogram. The results of 12 surgical cases suggest that decompression laminectomy produces relief of symptoms. An analysis of 2,403 plain lumbar roentgenograms showed an incidence of 8.4% OYL in the lumbar spine, with frequent involvement of the upper and middle lumbar spine. A classification system of OYL in the lumbar spine has been developed. The entire spine should be examined before surgery on a patient with hyperostotic lumbar spinal stenosis because of a tendency to ossify spinal ligaments at other levels.
A Kurihara; Y Tanaka; N Tsumura; Y Iwasaki
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Spine     Volume:  13     ISSN:  0362-2436     ISO Abbreviation:  Spine     Publication Date:  1988 Nov 
Date Detail:
Created Date:  1989-02-07     Completed Date:  1989-02-07     Revised Date:  2009-07-09    
Medline Journal Info:
Nlm Unique ID:  7610646     Medline TA:  Spine (Phila Pa 1976)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1308-16     Citation Subset:  IM    
Department of Orthopaedic Surgery, Kobe Rosai Hospital, Japan.
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MeSH Terms
Ligaments / pathology*
Lumbar Vertebrae / radiography
Middle Aged
Ossification, Heterotopic / radiography*
Spinal Stenosis / etiology,  radiography,  surgery*

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