Document Detail


US of the anterior bundle of the ulnar collateral ligament: findings in five cadaver elbows with MR arthrographic and anatomic comparison--initial observations.
MedLine Citation:
PMID:  12732704     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To characterize the ultrasonographic (US) appearance of the anterior bundle of the ulnar collateral ligament of the elbow by comparing US images with magnetic resonance (MR) arthrograms and anatomic slices. MATERIALS AND METHODS: The ulnar collateral ligament in four cadavers (eight elbows) was blindly evaluated with US by one musculoskeletal radiologist with experience in musculoskeletal US. These results were compared with standard arthrograms, MR arthrograms, and anatomic slices by consensus reading of two musculoskeletal radiologists. The criteria for an abnormal ulnar collateral ligament included contrast material extension into the ligament or fiber discontinuity, as documented by MR arthrography and anatomic slices. RESULTS: Standard arthrography, MR arthrography, and anatomic slices demonstrated the ulnar collateral ligament to be unequivocally normal in three specimens and abnormal in two. The remaining three elbows did not meet the criteria for classification as either normal or abnormal, and thus they were excluded from the study. With US, the normal ulnar collateral ligament was fibrillar and hyperechoic between the medial epicondyle and proximal ulna. In the two abnormal cases, abnormal hypoechogenicity and ligament fiber disruption were noted. In addition, the proximal aspect of the ulnar collateral ligament varied from a cordlike structure to a broad attachment to the undersurface of the medial epicondyle with variable fat. CONCLUSION: In this small sample, the anterior bundle of the ulnar collateral ligament is identified with US by its hyperechoic and compact fibrillar echotexture. The proximal attachment of the ulnar collateral ligament has a variable appearance. Hypoechogenicity and fiber disruption indicated ulnar collateral ligament abnormality.
Authors:
Jon A Jacobson; Tim Propeck; David A Jamadar; Peter J L Jebson; Curtis W Hayes
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Radiology     Volume:  227     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  2003 May 
Date Detail:
Created Date:  2003-05-06     Completed Date:  2003-07-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  561-6     Citation Subset:  AIM; IM    
Copyright Information:
Copyright RSNA, 2003
Affiliation:
Department of Radiology, University of Michigan Medical Center, 1500 E Medical Center Dr, TC-2910G, Ann Arbor 48109-0326, USA. jjacobsn@umich.edu
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Arthrography / methods*
Cadaver
Collateral Ligaments / anatomy & histology,  radiography*,  ultrasonography*
Elbow Joint / anatomy & histology,  radiography*,  ultrasonography*
Female
Humans
Magnetic Resonance Imaging*
Male
Middle Aged
Ulna

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


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