Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 21440
  Title Lumbar disk protrusion rates of symptomatic patients using magnetic resonance imaging
URL http://www.ncbi.nlm.nih.gov/pubmed/21036285
Journal J Manipulative Physiol Ther. 2010 Oct;33(8):626-629
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes Objective: The purpose of this study was to determine the rate of disk protrusions detected via magnetic resonance imaging (MRI) in patients symptomatic for spine pain, radiculopathy, or other spine-related pain.

Methods: A retrospective review of 1983 MRI scans was performed over a 2-year period on 1486 patients, each of whom was symptomatic for spine pain, radiculopathy, or other noncancer, spine-related pain. Of these patients, 761 were scanned in the recumbent position using low-field (0.3 T, Airis II, Hitachi, Twinsburg, Ohio) MRI, and 725 were scanned in an upright, sitting position using mid-field (0.6 T) open Upright MRI (Fonar, Melville, NY). In total, 986 serial scans were performed on patients in the recumbent position and 997 serial scans on patients in the weight-bearing position.

Results: One or more disk protrusions were identified in 73.3% of scans performed in the sitting position and in 50.1% of scans performed in the recumbent position. Most disk protrusions occurred at L5-S1 (52.3% and 29.8%), L4-L5 (42.6% and 26.7%), and L3-L4 (26.7% and 13.1%) in upright and recumbent positions, respectively.

Conclusions: The disk protrusion rate in this group of patients ranged between 50.1% (recumbent) and 73.3% (weight-bearing). These rates are higher than rates reported in the medical literature for asymptomatic patients, a finding that supports the decision to further evaluate patients with persistent spine-related pain.

This abstract is reproduced with the permission of the publisher; full text by subscription. Click on the above link and choose a publisher from PubMed's LinkOut feature.


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