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KMID : 0858520110150020123
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Journal of the Korean Society of Magnetic Resonance in Medicine
2011 Volume.15 No. 2 p.123 ~ p.129
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Follow-Up MR Imaging Assessment of Natural History of Lumbar Disc Herniation in Patients with Recurred Low Back Pain
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Lee Kyung-Mi
Park Ji-Seon
Ryu Kyung-Nam
Park So-Young
Jin Wook
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Abstract
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Purpose: To compare lumbar disc changes between initial lumbar spine (L-spine) MRI and follow-up (f/u) MRI that were performed due to recurred backaches.
Materials and Methods: A total 50 patients who had undergone f/u L-spine MRI were retrospectively reviewed. Five discs (L1-S1) were surveyed in each f/u MRI. Lumbar disc changes were defined as no change, aggravations, or improvements compared to initial disc states. These states were defined on the basis of morphologic status and disc levels.
Results: In a total of 250 discs in 50 patients, 31 discs (12.4%) showed morphologic changes of disc lesions, whereas 219 discs (87.6 %) showed no changes. Among the 31 disc lesions, 24 were aggravated and 7 were partially improved. And on the basis of disc status, initially abnormal discs revealed any morphologic changes of the degree of disc herniation. A total of 33.3% of the morphologic changes are noted in initially extruded discs. Fifteen morphologic changes of disc lesions were located at the L4-5 level.
Conclusion: Our results suggest that correlations between lumbar disc herniations and back pain symptoms are limited, and that evaluations of extra disc lesions are required.
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KEYWORD
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Magnetic resonance imaging (MRI), Spine, Intervertebral disc, Natural history
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