Document Detail

Morphologic Changes of L5 Root at Coronal Source Images of MR Myelography in Cases of Foraminal or Extraforaminal Compression.
MedLine Citation:
PMID:  19707488     Owner:  NLM     Status:  PubMed-not-MEDLINE    
OBJECTIVE: TWO FINDINGS EASILY FOUND AT CORONAL SOURCE IMAGES OF MR MYELOGRAPHY (MRM) WERE EVALUATED : dorsal root ganglion (DRG) swelling and running course abnormality (RCA) of L5 exiting root at foramen or extraforamen. We tried to find the sensitivity of each finding when root was compressed.
METHODS: From 2004 July to 2006, one hundred and ten patients underwent one side paraspinal decompression for their L5 root foraminal or extraforaminal compression at L5-S1 level. All kinds of conservative treatments failed to improve leg symptom for several months. Before surgery, MRI, CT and MRM were done. Retrospective radiologic analysis for their preoperative MRM coronal source images was done to specify root compression sites and L5 root morphologic changes.
RESULTS: DRG swelling was found in 66 (60%) of 110 patients. DRG swelling has statistically valuable meaning in foraminal root compression (chi-square test, p < 0.0001). Seventy-two (66%) in 110 patients showed abnormal alteration of running course. Abnormal running course has statistically valuable meaning in foraminal or extraforaminal root compression (chi-square test, p < 0.0001).
CONCLUSION: Three-dimensional MRM provides precise thin sliced coronal images which are most close to real operative views. DRG swelling and running course abnormality of L5 exiting root are two useful findings in diagnosing L5 root compression at L5-S1 foramen or extraforamen. MRM is thought to provide additional diagnostic accuracy expecially in L5-S1 foraminal and extraforaminal area.
Soo-Beom Kim; Jee-Soo Jang; Sang-Ho Lee
Related Documents :
21438048 - Gadolinium diethylenetriaminepentaacetate enhancement kinetics in the menisci of asympt...
23124478 - Changes in pyriform sinus morphology in the head rotated position as assessed by 320-ro...
17723688 - A galactose polyacrylate-based hydrogel scaffold for the detection of cholera toxin and...
21373678 - Monodisperse naybf(4) : tm(3+)/nagdf(4) core/shell nanocrystals with near-infrared to n...
19394548 - Unmasking pedal arteries in patients with critical ischemia using time-resolved contras...
15247548 - Intracranial neuronavigation with intraoperative magnetic resonance imaging.
Publication Detail:
Type:  Journal Article     Date:  2009-07-31
Journal Detail:
Title:  Journal of Korean Neurosurgical Society     Volume:  46     ISSN:  2005-3711     ISO Abbreviation:  J Korean Neurosurg Soc     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-08-26     Completed Date:  2011-07-14     Revised Date:  2013-05-23    
Medline Journal Info:
Nlm Unique ID:  101467054     Medline TA:  J Korean Neurosurg Soc     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  11-5     Citation Subset:  -    
Department of Orthopedic Surgery, Seoul Wooridul Hospital, Seoul, Korea.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Unilateral augmented pedicle screw fixation for foraminal stenosis.
Next Document:  Automated pressure-controlled discography with constant injection speed and real-time pressure measu...