MRI diagnosis of SLAP lesions associated with a rotator cuff tear

DOI
  • Mizushima Emi
    Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine
  • Hirose Toshiaki
    Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine
  • Nonaka Shinsuke
    Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine
  • Ueno Shigekazu
    Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine
  • Yoshimoto Shota
    Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine
  • Doke Takayuki
    Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine
  • Sugi Akira
    Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine
  • Yamashita Toshihiko
    Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine
  • Okamura Kenji
    Department of Orthopaedic Surgery, Sapporo Hitsujigaoka Hospital

Bibliographic Information

Other Title
  • 腱板断裂に合併した上方関節唇損傷の MRI 診断

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Description

Background: The purpose of this study was to investigate the efficiency of MR imaging for diagnosing SLAP lesions associated with rotator cuff tear.<BR>Methods: 57 shoulders with rotator cuff tear were examined and all patients underwent MRI before arthroscopic rotator cuff repair. Intensity and morphological changes of superior labrum in T2 and PD weighted images by the spin echo method, and multiple echo recombined gradient echo (MERGE) method were evaluated and categorized by Yamasaki's classification. Then we compared the evaluation by MRI with arthroscopic findings. In evaluation by MRI, SLAP lesion was diagnosed with Type II-B, type III or type IV according to Yamazaki's classification.<BR>Results: In MERGE method, sensitivity is 100%, specificity is 67% and accuracy is 73%. In T2 weighted images, sensitivity is 45%, specificity is 80% and accuracy is 73%. In PD weighted images, sensitivity is 72%, specificity is 56% and accuracy is 59%.<BR>Conclusion: MERGE method had the highest sensitivity and accuracy. So this becomes useful as a screening test of SLAP lesion.

Journal

  • Katakansetsu

    Katakansetsu 36 (2), 323-325, 2012

    Japan Shoulder Society

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