American Journal of Roentgenology, Vol 169, 837-844, Copyright © 1997 by American Roentgen Ray Society

ARTICLES

Using abduction and external rotation of the shoulder to increase the sensitivity of MR arthrography in revealing tears of the anterior glenoid labrum

O Cvitanic, PF Tirman, JF Feller, FW Bost, J Minter and KW Carroll
Medical Imaging Center of Oklahoma, Oklahoma City 73139, USA.

OBJECTIVE: The purpose of this study was to compare oblique axial MR arthrograms obtained with the patient's shoulder in abduction and external rotation (ABER) position with conventional axial MR arthrograms obtained with the patient's arm in neutral position and the shoulder not rotated in revealing tears of the anterior glenoid labrum (AGL). SUBJECTS AND METHODS: MR arthrography of the shoulder that included an additional oblique axial imaging sequence with the patient in the ABER position was performed in 256 patients. Assessment of AGL integrity with patients in both conventional axial and ABER positions was made before surgery. These assessments were compared with the surgical findings. RESULTS: Of the 92 patients who underwent surgery, AGL tears were found in 27. Conventional axial MR arthrograms revealed 13 tears (sensitivity, 48%; specificity, 91%). A separate review of MR arthrograms obtained with patients in the ABER position revealed 24 tears (sensitivity, 89%; specificity, 95%). Reviewed together, axial MR arthrograms and MR arthrograms obtained with patients in the ABER position revealed 26 tears (sensitivity, 96%; specificity, 97%). CONCLUSION: Oblique axial MR arthrograms obtained with the patient's shoulder in the ABER position were significantly more sensitive in revealing AGL tears (p = .005) than were conventional axial MR arthrograms obtained with the patient's aim in a neutral position and the shoulder not rotated.
CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this?

This article has been cited by other articles:

				Y.-S. Kim, J.-M. Kim, K.-Y. Ha, S. Choy, M.-W. Joo, and Y.-G. Chung The Passive Compression Test: A New Clinical Test for Superior Labral Tears of the Shoulder Am. J. Sports Med., September 1, 2007; 35(9): 1489 - 1494. [Abstract] [Full Text] [PDF]

				G. E. Gold, G. P. Pappas, S. S. Blemker, S. T. Whalen, G. Campbell, T. A. McAdams, and C. F. Beaulieu Abduction and External Rotation in Shoulder Impingement: An Open MR Study on Healthy Volunteers Initial Experience Radiology, September 1, 2007; 244(3): 815 - 822. [Abstract] [Full Text] [PDF]

				S. Waldt, A. Burkart, A. B. Imhoff, M. Bruegel, E. J. Rummeny, and K. Woertler Anterior Shoulder Instability: Accuracy of MR Arthrography in the Classification of Anteroinferior Labroligamentous Injuries Radiology, November 1, 2005; 237(2): 578 - 583. [Abstract] [Full Text] [PDF]

				J. N. Masi, D. Newitt, C. A. Sell, H. Daldrup-Link, L. Steinbach, S. Majumdar, and T. M. Link Optimization of Gadodiamide Concentration for MR Arthrography at 3 T Am. J. Roentgenol., June 1, 2005; 184(6): 1754 - 1761. [Abstract] [Full Text] [PDF]

				C McCarthy Glenohumeral instability Imaging, December 1, 2003; 15(4): 174 - 179. [Full Text] [PDF]

				J. Q. Ly, D. P. Beall, and T. G. Sanders MR Imaging of Glenohumeral Instability Am. J. Roentgenol., July 1, 2003; 181(1): 203 - 213. [Full Text] [PDF]

				L. S. Steinbach, W. E. Palmer, and M. E. Schweitzer Special Focus Session: MR Arthrography RadioGraphics, September 1, 2002; 22(5): 1223 - 1246. [Abstract] [Full Text] [PDF]

				H. Sugimoto, K. Suzuki, K.-i. Mihara, H. Kubota, and H. Tsutsui MR Arthrography of Shoulders after Suture-Anchor Bankart Repair Radiology, July 1, 2002; 224(1): 105 - 111. [Abstract] [Full Text]

				T. K. Wischer, M. A. Bredella, H. K. Genant, D. W. Stoller, F. W. Bost, and P. F. J. Tirman Perthes Lesion (A Variant of the Bankart Lesion): MR Imaging and MR Arthrographic Findings with Surgical Correlation Am. J. Roentgenol., January 1, 2002; 178(1): 233 - 237. [Abstract] [Full Text] [PDF]

				M. V. Hammar, G. B. Wintzell, K. G. O. Åström, S. Larsson, and A. Elvin Role of US in the Preoperative Evaluation of Patients with Anterior Shoulder Instability Radiology, April 1, 2001; 219(1): 29 - 34. [Abstract] [Full Text]

				T. G. Sanders, W. B. Morrison, and M. D. Miller Imaging Techniques for the Evaluation of Glenohumeral Instability Am. J. Sports Med., May 1, 2000; 28(3): 414 - 434. [Abstract] [Full Text] [PDF]

				M. L. Brenner, W. B. Morrison, J. A. Carrino, C. A. Nusser, T. G. Sanders, R. F. Howard, and P. Meier Direct MR Arthrography of the Shoulder: Is Exercise Prior to Imaging Beneficial or Detrimental? Radiology, May 1, 2000; 215(2): 491 - 496. [Abstract] [Full Text]