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


     

This Article
Right arrow Abstract Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
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 Tung, G. A.
Right arrow Articles by Hou, D. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Tung, G. A.
Right arrow Articles by Hou, D. D.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

MR Arthrography of the Posterior Labrocapsular Complex: Relationship with Glenohumeral Joint Alignment and Clinical Posterior Instability

Glenn A. Tung1 and David D. Hou

1 Both authors: Department of Diagnostic Imaging, Brown University School of Medicine and Rhode Island Hospital, 593 Eddy St., Providence, RI 02903.



View larger version (130K):

[in a new window]
  		Fig. 1. —39-year-old man with shoulder pain, no signs of posterior shoulder instability, and posterior labral tear. Axial fat-saturated T1-weighted (TR/TE, 779/12) MR arthrogram of left shoulder shows posterior labral tear (straight arrow) that is 6 mm in craniocaudal length. There is no avulsion of posterior capsule (curved arrow) and humeral translation is 3.7 mm posterior to plane of scapular body.

 


View larger version (113K):

[in a new window]
  		Fig. 2. —20-year-old man with posterior shoulder instability, labrum tear, and labrocapsular avulsion. Axial fat-saturated T1-weighted (TR/TE, 779/12) MR arthrogram of right shoulderr shows intraarticular contrast material in posterior labral tear (solid arrow) that extends posteromedially along posterior glenoid rim (open arrow). This labrocapsular tear is 24 mm in craniocaudal length; humeral translation is 6 mm posterior to plane of scapular body.

 


View larger version (166K):

[in a new window]
  		Fig. 3A. —16-year-old boy with right shoulder macrotrauma, clinical posterior instability, and labroscapsular avulsion. Axial fat-saturated T1-weighted (TR/TE, 779/12) MR arthrogram shows posterior labral tear (solid arrow) that extends posteromedially and involves attachment of posterior capsule and glenoid periosteum (open arrow).

 


View larger version (161K):

[in a new window]
  		Fig. 3B. —16-year-old boy with right shoulder macrotrauma, clinical posterior instability, and labroscapsular avulsion. Posterior labrocapsular lesion (arrow) is also evident on axial oblique MR arthrogram obtained in abduction—external rotation position.

 


View larger version (148K):

[in a new window]
  		Fig. 3C. —16-year-old boy with right shoulder macrotrauma, clinical posterior instability, and labroscapsular avulsion. Oblique sagittal fat-saturated T1-weighted (779/12) MR arthrogram shows craniocaudal extent of this tear (arrow).

 


View larger version (144K):

[in a new window]
  		Fig. 4. —38-year-old man with history of shoulder trauma with posterior instability on physical examination. Axial fatsaturated T1-weighted (TR/TE, 779/12) MR arthrogram of left shoulder shows irregular contrast material collection (solid arrow) in posterior labral tear that extends farther medially along posterior glenoid rim (open arrow). Tear is 15 mm in craniocaudal length; humeral translation is 10 mm posterior to plane of scapular body.

 


View larger version (56K):

[in a new window]
  		Fig. 5. —Diagram shows method for quantifying humeral position relative to glenoid fossa. Short line segment (G) connects anterior and posterior tips of osseous glenoid and represents length of glenoid fossa. Second longer line segment (SS) is drawn tangentially to ventral or costal surface of scapular body and bisects glenoid line segment G. Distance between this line, extended through humeral head, and center of humeral head (x) represents humeral translation distance. If center of humeral head is posterior to line segment SS, distance (in millimeters) is recorded as negative value and if anterior, as positive value.

 


View larger version (10K):

[in a new window]
  		Fig. 6. —Scatterplot (r = -0.65, p = 0.002) shows correlation between posterior humeral translation and length of posterior labrocapsular tear.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?



HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2003 by the American Roentgen Ray Society.