Clinics in Shoulder and Elbow

Korean Shoulder and Elbow Society (대한견·주관절의학회)
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Relationship of the Shape of Subacromial Spur and Rotator Cuff Partial Thickness Tear

  • Kim, Young-Kyu (Department of Orthopedic Surgery, Gil Medical Center, Gachon University College of Medicine) ;
  • Jung, Kyu-Hak (Department of Orthopedic Surgery, Gil Medical Center, Gachon University College of Medicine) ;
  • Kang, Suk-Woong (Department of Orthopedic Surgery, Pusan National University Yangsan Hospital) ;
  • Hong, Jin-Hun (Department of Orthopedic Surgery, Gil Medical Center, Gachon University College of Medicine) ;
  • Choi, Ki-Yong (Department of Orthopedic Surgery, Gil Medical Center, Gachon University College of Medicine) ;
  • Choi, Ji-Uk (Department of Orthopedic Surgery, Gil Medical Center, Gachon University College of Medicine)
  • Received : 2019.04.18
  • Accepted : 2019.08.04
  • Published : 2019.09.01
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Abstract

Background: The present study was undertaken to evaluate the relationship between location of the rotator cuff tear and shape of the subacromial spur. Methods: Totally, 80 consecutive patients who underwent arthroscopic repair for partial thickness rotator cuff tear were enrolled for the study. Bigliani's type of the acromion, type of subacromial spur, and location of partial thickness tear of the rotator cuff were evaluated using plain X-ray and magnetic resonance imaging. We then compared the groups of no spur with spur, and heel with traction spur. Results: Of the 80 cases, 25 cases comprised the no spur group, and 55 cases comprised the spur group. There was a significant difference in type of tear (p=0.0004) between these two groups. Bursal side tears were significantly greater (odds ratio=6.000, p=0.0007) in the spur group. Subjects belonging to the spur group were further divided into heel (38 cases) and traction spur (17 cases). Comparing these two groups revealed significant differences only in the type of tear (p=0.0001). Furthermore, the heel spur had significantly greater bursal side tear (odds ratio=29.521, p=0.0005) as compared to traction spur. Conclusions: The heel spur is more associated to bursal side tear than the traction spur, whereas the traction spur associates greater to the articular side tear.

Keywords

References

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