Detailed MRI-Anatomic Study of the Lateral Epicondyle of the Elbow and Its Tendinous and Ligamentous Attachments in Cadavers

Detailed MRI-Anatomic Study of the Lateral Epicondyle of the Elbow and Its Tendinous and Ligamentous Attachments in Cadavers

Author Zoner, Cristiane Soares Autor UNIFESP Google Scholar
Buck, Florian M. Google Scholar
Cardoso, Fabiano Nassar de Castro Autor UNIFESP Google Scholar
Gheno, Ramon Google Scholar
Trudell, Debra J. Google Scholar
Randall, Tori D. Google Scholar
Resnick, Donald Google Scholar
Institution Univ Calif San Diego
VA Healthcare Syst San Diego
San Diego Museum Man
Universidade Federal de São Paulo (UNIFESP)
Abstract OBJECTIVE. the objective of our study was to document discrete bone landmarks in the lateral epicondyle of the humerus that represent the footprints of those tendons and ligaments that attach to it using MRI-anatomic correlation in cadavers.MATERIALS and METHODS. Thirty-three dried humeral specimens were inspected to document bone landmarks in the lateral epicondyle. MRI with anatomic correlation was performed in 10 additional cadaveric elbows. the locations of the tendinous and ligamentous attachments to the lateral epicondyle were determined with respect to the same osseous landmarks.RESULTS. the surface of the lateral epicondyle ranged from a flat surface to a surface with up to six discrete landmarks: superior tubercle, anterior tubercle, posterior tubercle, intertubercular sulcus, rough area surrounding the tubercles, and epicondylar ridge. the radial collateral ligament attached to the superior aspect of the intertubercular sulcus and inferior aspect of the superior tubercle and was indistinguishable from the attachment of the lateral ulnar collateral ligament. the extensor carpi radialis brevis, extensor digitorum communis, and extensor digiti minimi had a common origin in the superior aspect of the lateral epicondyle. the extensor carpi ulnaris tendon arose from the posteroinferior aspect of the lateral epicondyle.CONCLUSION. Our investigation documents osseous landmarks that are useful in the identification of the footprints of the tendons and ligaments that attach to the lateral epicondyle. Knowledge of these structures contributes to correct interpretation of MR images in persons with tendinous and ligamentous abnormalities in this region.
Keywords elbow anatomy
elbow ligaments
elbow tendons
elbow tendon attachments
humerus
lateral epicondyle
MRI
Language English
Date 2010-09-01
Published in American Journal of Roentgenology. Reston: Amer Roentgen Ray Soc, v. 195, n. 3, p. 629-636, 2010.
ISSN 0361-803X (Sherpa/Romeo, impact factor)
Publisher Amer Roentgen Ray Soc
Extent 629-636
Origin http://dx.doi.org/10.2214/AJR.09.3173
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000281180500013
URI http://repositorio.unifesp.br/handle/11600/32853

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