American Journal of Roentgenology, Vol 173, 345-349, Copyright © 1999 by American Roentgen Ray Society

ARTICLES

MR arthrography of the adult acetabular capsular-labral complex: correlation with surgery and anatomy

C Czerny, S Hofmann, M Urban, C Tschauner, A Neuhold, M Pretterklieber, MP Recht and J Kramer
Department of Radiology, University Hospital of Vienna, Austria.

OBJECTIVE: Our purpose was to describe the appearance of the acetabular capsular-labral complex on MR arthrography and to correlate this appearance with surgical findings in adult patients and with gross anatomic findings in cadavers. SUBJECTS AND METHODS: MR arthrography of the hip joint was performed in 40 patients and six cadavers. All patients underwent subsequent arthrotomy of the hip. MR arthrography consisted of a T1-weighted three-dimensional gradient-echo sequence in both the coronal oblique and sagittal oblique planes after intraarticular injection of a 2 mmol/l solution of gadopentetate dimeglumine. The normal and pathologic appearance of the capsular- labral complex was assessed, and the labra were evaluated on the basis of morphology, signal intensity, presence of a tear, and attachment to the acetabulum. MR arthrography findings were correlated with the surgical results in all patients and with the anatomic sections of the cadaveric hip joint specimens. RESULTS: MR arthrography images of the T- weighted three-dimensional gradient-echo sequences allowed visualization of the anatomic structures. The normal labrum was triangular, without any sublabral sulcus, and of homogeneous low signal intensity. A recess between the labrum and the joint capsule could be identified in instances in which no thickened labrum was present. Labral lesions included labral degeneration, a tear, or a detached labrum either with or without thickening of the labrum. The sensitivity for detection and correct staging of labral lesions with MR arthrography in the patient study was 91%; the specificity, 71%; and the accuracy, 88%. CONCLUSION: MR arthrography with T1-weighted three- dimensional gradient-echo sequences allows excellent assessment of the normal and pathologic acetabular capsular-labral complex.
CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this?

This article has been cited by other articles:

				U. Studler, F. Kalberer, M. Leunig, M. Zanetti, J. Hodler, C. Dora, and C. W. A. Pfirrmann MR Arthrography of the Hip: Differentiation between an Anterior Sublabral Recess as a Normal Variant and a Labral Tear Radiology, December 1, 2008; 249(3): 947 - 954. [Abstract] [Full Text] [PDF]

				S. L. J. James, K. Ali, F. Malara, D. Young, J. O'Donnell, and D. A. Connell MRI findings of femoroacetabular impingement. Am. J. Roentgenol., December 1, 2006; 187(6): 1412 - 1419. [Abstract] [Full Text] [PDF]

				D. Saddik, J. Troupis, P. Tirman, J. O'Donnell, and R. Howells Prevalence and location of acetabular sublabral sulci at hip arthroscopy with retrospective MRI review. Am. J. Roentgenol., November 1, 2006; 187(5): W507 - W511. [Abstract] [Full Text] [PDF]

				C. W. A. Pfirrmann, B. Mengiardi, C. Dora, F. Kalberer, M. Zanetti, and J. Hodler Cam and Pincer Femoroacetabular Impingement: Characteristic MR Arthrographic Findings in 50 Patients Radiology, September 1, 2006; 240(3): 778 - 785. [Abstract] [Full Text] [PDF]

				R. S. J. Burnett, G. J. D. Rocca, H. Prather, M. Curry, W. J. Maloney, and J. C. Clohisy Clinical Presentation of Patients with Tears of the Acetabular Labrum J. Bone Joint Surg. Am., July 1, 2006; 88(7): 1448 - 1457. [Abstract] [Full Text] [PDF]

				G. A. Toomayan, W. R. Holman, N. M. Major, S. M. Kozlowicz, and T. P. Vail Sensitivity of MR Arthrography in the Evaluation of Acetabular Labral Tears Am. J. Roentgenol., February 1, 2006; 186(2): 449 - 453. [Abstract] [Full Text] [PDF]

				T. P. Sundberg, G. A. Toomayan, and N. M. Major Evaluation of the Acetabular Labrum at 3.0-T MR Imaging Compared with 1.5-T MR Arthrography: Preliminary Experience Radiology, February 1, 2006; 238(2): 706 - 711. [Abstract] [Full Text] [PDF]

				C. L Lewis and S. A Sahrmann Acetabular Labral Tears Physical Therapy, January 1, 2006; 86(1): 110 - 121. [Full Text] [PDF]

				J. MINIGH Imaging Sports-related Injuries Radiol. Technol., November 1, 2005; 77(2): 121 - 138. [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]

				J Brittenden and P Robinson Imaging of pelvic injuries in athletes Br. J. Radiol., May 1, 2005; 78(929): 457 - 468. [Full Text] [PDF]

				P. A. Dinauer, K. P. Murphy, and J. F. Carroll Sublabral Sulcus at the Posteroinferior Acetabulum: A Potential Pitfall in MR Arthrography Diagnosis of Acetabular Labral Tears Am. J. Roentgenol., December 1, 2004; 183(6): 1745 - 1753. [Abstract] [Full Text] [PDF]

				J. W. T. Byrd and K. S. Jones Diagnostic Accuracy of Clinical Assessment, Magnetic Resonance Imaging, Magnetic Resonance Arthrography, and Intra-articular Injection in Hip Arthroscopy Patients Am. J. Sports Med., October 1, 2004; 32(7): 1668 - 1674. [Abstract] [Full Text] [PDF]

				C. A. Petersilge Chronic Adult Hip Pain: MR Arthrography of the Hip RadioGraphics, October 1, 2000; 20(90001): 43S - 52. [Abstract] [Full Text]