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KMID : 1211620100050040615
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Journal of the Korean Society of Physical Medicine
2010 Volume.5 No. 4 p.615 ~ p.621
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Quantitative analysis of lumbar multifidus atrophy with low back pain patients using Magnetic Resonance Image
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Yang Dae-Jung
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Abstract
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Purpose: The purpose of this study was to compare chronic LBP patients and asymptomatic subjects on measures of multifidus size (cross-sectional area;CSA, thickness) and symmetry (proportional difference of relatively larger side to smaller side).
Methods: Data were obtained from 12 asymptomatic subjects without a prior history of LBP (8 females, 4 males), and a retrospective audit was undertaken of records from 12 chronic low back pain patients (8 females, 4 males). CSA and Thickness of the lumbar multifidus muscles was measured from axial T1-weighted magnetic resonance images(MRI).
Results: The results of the analysis showed that chronic LBP patients had significantly smaller multifidus CSA and thickness than asymptomatic subjects at L4-5 vertebral levels(p<.05). The asymmetry between sides was seen at L4- L5 vertebral level in patients with chronic low back pain presentations(p<.05).
Conclusion: MRI provided a quantitative measure of change between asymptomatic subjects and chronic low back pain patients of multifidus muscle. MRI identified significant differences in cross-sectional area and thickness and helps to evaluate clinically and plan the treatment modalities of LBP.
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KEYWORD
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Multifidus, MRI, Low Back Pain
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