Radiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Schellinger, D.
Right arrow Articles by Abdullah, D. C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Schellinger, D.
Right arrow Articles by Abdullah, D. C.

Radiology, Vol 175, 831-836, Copyright © 1990 by Radiological Society of North America

ARTICLES

Disk fragment migration

D Schellinger, HJ Manz, B Vidic, NJ Patronas, JP Deveikis, AS Muraki and DC Abdullah
Department of Radiology, Georgetown University Medical Center, Washington, DC 20007.

This report analyzes the most frequently observed migration paths of disk fragments in 47 patients who had extruded or sequestered disks. Observations are based principally on magnetic resonance (MR) images. When disk fragments moved in a superior (42%) or inferior (40%) direction from the donor disk, the displaced disk components were most frequently (94%) dislodged into the right or left half of the anterior epidural space (AES) and rarely straddled the midline. To explain this phenomenon, the authors investigated the anatomy of the AES by dissecting four cadaver specimens and reviewing 300 MR images of the spine. They conclude that the migrating path of a disk fragment is determined by the anatomy of the AES, a fairly well-defined space delimited posteriorly by the posterior longitudinal ligament and by membranes laterally attached to it. It consists of two compartments separated by a sagitally aligned septum. During migration, sequestered disk fragments usually stay in these compartments.


This article has been cited by other articles:


Home page
 Am. J. Neuroradiol.Home page
C.Y. Chen, Y.L. Chuang, M.S. Yao, W.T. Chiu, C.L. Chen, and W.P. Chan
Posterior Epidural Migration of a Sequestrated Lumbar Disk Fragment: MR Imaging Findings
AJNR Am. J. Neuroradiol., August 1, 2006; 27(7): 1592 - 1594.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Neuroradiol.Home page
K. Kono, H. Nakamura, Y. Inoue, T. Okamura, M. Shakudo, and R. Yamada
Intraspinal Extradural Cysts Communicating with Adjacent Herniated Disks: Imaging Characteristics and Possible Pathogenesis
AJNR Am. J. Neuroradiol., August 1, 1999; 20(7): 1373 - 1377.
[Abstract] [Full Text]

Home page
 Am J Sports MedHome page
J. Berge, B. Marque, J.-M. Vital, J. Senegas, and J.-M. Caille
Age-Related Changes in the Cervical Spines of Front-Line Rugby Players
Am. J. Sports Med., July 1, 1999; 27(4): 422 - 429.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
RADIOLOGY RADIOGRAPHICS RSNA JOURNALS ONLINE
Copyright © 1990 by the Radiological Society of North America.