Association between Annular Tears and Disk Degeneration: A Longitudinal Study
نویسندگان
چکیده
منابع مشابه
Association between annular tears and disk degeneration: a longitudinal study.
BACKGROUND AND PURPOSE Annular tears and nuclear degeneration often occur concurrently, but their temporal association remains unknown. The purpose of this study was to assess whether annular tears precede nuclear degeneration and whether the evolution of nuclear degeneration is affected by presence of annular tears. MATERIALS AND METHODS From our radiology report data base, 46 patients with ...
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BACKGROUND AND PURPOSE Studies done mainly in adults have shown an association between annular tears and nuclear degeneration. We wanted to study this association in the pediatric population to better understand the natural history of disk degeneration in its early stages. We hypothesized that this association is discernible even at a young age and that annular tears precede nuclear degeneratio...
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We studied 135 lumbar discs from 27 spines removed post-mortem from subjects of an average age of 31.5 years. Defects of the annulus fibrosus were classified as peripheral, circumferential or radiating; the nucleus pulposus as normal, moderately or severely degenerate. Peripheral tears were more frequent in the anterior annulus, except in the L5-S1 disc. Circumferential tears were equally distr...
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ژورنال
عنوان ژورنال: American Journal of Neuroradiology
سال: 2009
ISSN: 0195-6108,1936-959X
DOI: 10.3174/ajnr.a1411