Open AccessGlenohumeral instability: Validity of low-field MRI for diagnosis of labral tears
Author(s) -
Alicia Bartolomé,
T. Pirogova,
Manuel Bartolomé,
R B Sanchez,
F. García de Lucas
Publication year - 2016
Publication title -
the egyptian journal of radiology and nuclear medicine /the egyptian journal of radiology and nuclear medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.19
H-Index - 13
eISSN - 2090-4762
pISSN - 0378-603X
DOI - 10.1016/j.ejrnm.2016.09.009
Subject(s) - medicine , labrum , arthrogram , medical diagnosis , bankart lesion , arthroscopy , radiology , tears , surgery , radiological weapon , magnetic resonance imaging
Purpose: To analyze the MRI findings of a series of patients with symptoms of glenohumeral instability and determine whether the diagnosis of a torn labrum can be confirmed by surgical exploration.Materials and methods: Between January 2005 and January 2011, low-field MRI was performed in a total of 190 patients. Surgical treatment was administered to 127 patients, and only 62 of them were subjected to diagnostic arthroscopy.Results: A total of 127 patients (66.8%) underwent surgery. The most frequent surgical procedure was Arthroscopic Bankart Repair (62 cases, 48.8%) with a total number of correct MRI-based labral tear diagnoses of 50 (overall predictive value: 83.3%).Discussion: The analysis found nearly 80% correct labral tear diagnoses. The majority of errors were related to the diagnosis of SLAP lesions and attributable to several factors.Conclusion: Low-field MRI is an appropriate method to diagnose labral tears, with sensitivity levels of 83.3%. Nevertheless, in order to correctly determine the type of lesion present it is advisable, though not indispensable, to carry out a direct MR arthrogram, except in the case of SLAP lesions, where diagnosis is virtually impossible without the addition of intra-articular contrast (unless patients with glenohumeral effusion)