title: Magnetic resonance arthrography for assessing severity of glenohumeral labroligamentous lesions.
abstract: OBJECTIVE
  To compare magnetic resonance (MR) arthrography and arthroscopy as a means of assessing the severity of labral tear in anterior glenohumeral instability.
  
  
  METHODS
  52 patients presenting with traumatic recurrent anterior shoulder instability were evaluated using MR arthrography; 30 shoulders with a labroligamentous lesion were treated with arthroscopic Bankart repair. Their MR arthrographic images were interpreted by 3 senior musculoskeletal radiologists, and a radiological diagnosis was reached by consensus. The sensitivity and positive predictive values of MR arthrography for detecting a labral tear were determined. Agreement between MR arthrography and arthroscopy in terms of the width and depth of the labral tear was analysed.
  
  
  RESULTS
  On arthroscopy, a labroligamentous lesion (Bankart lesion and its variants) was present in all the 30 shoulders. Agreement between the MR arthrography and arthroscopy in terms of the width and depth of the labral tears was good.
  
  
  CONCLUSIONS
  MR arthrography is an accurate means of assessing the severity of anterior labroligamentous lesions and yields a good correlation with arthroscopy.
authors.affiliation: Department of Radiodiagnosis, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India. manishajana@gmail.com
authors.forename: Manisha
authors.initials: M
authors.lastname: Jana
authors.forename: Deep Narayan
authors.initials: DN
authors.lastname: Srivastava
authors.forename: Raju
authors.initials: R
authors.lastname: Sharma
authors.forename: Shivanand
authors.initials: S
authors.lastname: Gamanagatti
authors.forename: H L
authors.initials: HL
authors.lastname: Nag
authors.forename: Ravi
authors.initials: R
authors.lastname: Mittal
authors.forename: Ashish Dutt
authors.initials: AD
authors.lastname: Upadhyay
mesh_terms: D001175:Arthrography / Q000379:methods*; D001182:Arthroscopy; D006801:Humans; D015601:Injury Severity Score; D008023:Ligaments, Articular / Q000293:injuries*; D008279:Magnetic Resonance Imaging; D012783:Shoulder Dislocation / Q000175:diagnosis*; D000070599:Shoulder Injuries; D012785:Shoulder Joint / Q000000981:diagnostic imaging; D014947:Wounds and Injuries / Q000175:diagnosis