American Journal of Roentgenology, Vol 173, 1117-1122, Copyright © 1999 by American Roentgen Ray Society

ARTICLES

Superior labral anteroposterior lesions: MR arthrography with arm traction

KK Chan, KA Muldoon, L Yeh, R Boutin, R Pedowitz, A Skaf, DJ Trudell and D Resnick
Department of Radiology, School of Medicine, University of California, San Diego Medical Center, 92103-1990, USA.

OBJECTIVE: The purpose of this study was to investigate the efficacy of arm traction combined with MR arthrography in the evaluation of superior labral anteroposterior (SLAP) lesions. MATERIALS AND METHODS: Cadaveric shoulders were studied with a 1.5-T MR imaging unit with the arm externally rotated. Fifteen milliliters of a gadolinium-containing contrast agent were injected into the glenohumeral joint. Twenty-four sets of images of cadaveric joints were evaluated independently by two observers. These sets consisted of MR arthrographic images obtained with traction (applied to the wrist using 1- to 3-kg weights) and without traction in five shoulders in which SLAP lesions had been excluded arthroscopically or by cadaveric sectioning; and MR arthrographic images obtained with and without traction in seven shoulders in which various types of SLAP lesions had been created arthroscopically and later confirmed by cadaveric sectioning. RESULTS: Analysis of the data indicated that MR arthrography in combination with arm traction and external rotation improved diagnostic accuracy with regard to identification and categorization of SLAP lesions when compared with studies made without traction. CONCLUSION: The combination of MR arthrography and arm traction with the shoulder in external rotation provides a more effective approach for detection of SLAP lesions than does similar MR arthrography performed without arm traction.
CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this?

This article has been cited by other articles:

				R. Gobezie, D. Zurakowski, K. Lavery, P. J. Millett, B. J. Cole, and J. J. P. Warner Analysis of Interobserver and Intraobserver Variability in the Diagnosis and Treatment of SLAP Tears Using the Snyder Classification Am. J. Sports Med., July 1, 2008; 36(7): 1373 - 1379. [Abstract] [Full Text] [PDF]

				M. J. Tuite, A. Rutkowski, T. Enright, L. Kaplan, J. P. Fine, and J. Orwin Width of High Signal and Extension Posterior to Biceps Tendon as Signs of Superior Labrum Anterior to Posterior Tears on MRI and MR Arthrography Am. J. Roentgenol., December 1, 2005; 185(6): 1422 - 1428. [Abstract] [Full Text] [PDF]

				A. V. R. Mohana-Borges, C. B. Chung, and D. Resnick Superior Labral Anteroposterior Tear: Classification and Diagnosis on MRI and MR Arthrography Am. J. Roentgenol., December 1, 2003; 181(6): 1449 - 1462. [Full Text] [PDF]

				S. Y. Lee and J. K. Lee Horizontal Component of Partial-Thickness Tears of Rotator Cuff: Imaging Characteristics and Comparison of ABER View with Oblique Coronal View at MR Arthrography— Initial Results Radiology, August 1, 2002; 224(2): 470 - 476. [Abstract] [Full Text] [PDF]

				W.-H. Jee, T. R. McCauley, L. D. Katz, J. M. Matheny, P. A. Ruwe, and J. P. Daigneault Superior Labral Anterior Posterior (SLAP) Lesions of the Glenoid Labrum: Reliability and Accuracy of MR Arthrography for Diagnosis Radiology, January 1, 2001; 218(1): 127 - 132. [Abstract] [Full Text]