| Magnetic resonance imaging of the lumbar spine with axial loading: A review of 120 cases. | |
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MedLine Citation:
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PMID: 21741192 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: To evaluate the imaging findings of patients with clinical symptoms of lower back pain who underwent magnetic resonance imaging (MRI) of the lumbar spine with axial loading. MATERIALS AND METHODS: We examined 120 patients by MRI, before and after axial loading, using a compression device that applied 50% of their body weight for a load time of 5min. The dural sac cross area (DSCA) was examined by two experienced radiologists before and after axial load, and their findings were compared. Degenerative abnormalities within and adjacent to the spinal canal were also analyzed. RESULTS: A reduction in DSCA greater than 15mm(2) after axial load was defined as significant, and was found in 81 patients (67.5%) and 138 disc spaces (38.3%). Reduction was most frequent at L4-L5 (n=55). For other disorders, a 9% increase in cases of bulging disc was seen during axial loading, and seven disc spaces showed protrusion/extrusion only after load. Facet joint synovial cysts, foraminal stenosis, and hypertrophy of the flavum ligaments showed almost no differences, pre- and post-load. CONCLUSION: For adequate evaluation of lumbar symptoms, examination should be performed with axial loading, especially in cases of suspected spinal stenosis. |
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Authors:
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Andre Kinder; Fernando Palma Filho; Elisio Ribeiro; Romeu C Domingues; Roberto C Domingues; Edson Marchiori; Emerson Gasparetto |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-7 |
Journal Detail:
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Title: European journal of radiology Volume: - ISSN: 1872-7727 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8106411 Medline TA: Eur J Radiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
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Department of Radiology, Federal University of Rio de Janeiro School of Medicine, Rio de Janeiro, Brazil; Clinica de Diagnóstico por Imagem (CDPI), Rio de Janeiro, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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