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Follow-Up MR Imaging Assessment of Natural History of Lumbar Disc Herniation in Patients with Recurred Low Back Pain  

Lee, Kyung-Mi (Department of Radiology, Kyung Hee University Hospital, Kyung Hee University)
Park, Ji-Seon (Department of Radiology, Kyung Hee University Hospital, Kyung Hee University)
Ryu, Kyung-Nam (Department of Radiology, Kyung Hee University Hospital, Kyung Hee University)
Park, So-Young (Department of Radiology, Kyung Hee University Hospital at Gangdong, Kyung Hee University)
Jin, Wook (Department of Radiology, Kyung Hee University Hospital at Gangdong, Kyung Hee University)
Publication Information
Investigative Magnetic Resonance Imaging / v.15, no.2, 2011 , pp. 123-129 More about this Journal
Abstract
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.
Keywords
Magnetic resonance imaging (MRI); Spine; Intervertebral disc; Natural history;
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