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Journal of the Korean Shoulder and Elbow Society 1998;1(2):250-255.
Published online November 30, 1998.
Intrusion of Supraspinatus Outlet by the Humeral Head in Rotator Cuff Disease
Jae-Myeung Chun, M.D., Seong-Il Bin, M.D., Eugene Kim, M.D., Hoi-Jin Lee, M.D., Sung-Moon Kim, M.D.* and Key-Yong Kim, M.D.
Department of Orthopaedic Surgery and Diagnostic Radiology*
College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Korea
회전근 개 질환에서 상완골 두의 극상근 출구의 침범
전재명, 빈성일, 김유진, 이회진, 김기용, 김성문
울산대학교 의과대학 서울중앙병원 정형외과학교실, 진단방사선과학교실*
Abstract
Purpose
of the study was to analyze the supraspinatus outlet image of sagittal MRI in rotator cuff disease. We analyzed the sagittal views of the shoulder MRI of 78 cases without cuff tear. The cases were divided into 51 cases of rotator cuff disease group and 27 cases of control group. Six parameters of acromial tilt, coracoacromial ligament angle, length and height of coracoacromial triangle, length of acromial side of the baseline and distance of intrusion of the humeral head were compared for each group. The distance of intrusion of the humeral head was the most significantly different one, 0.52cm for rotator cuff disease group and 0.15cm for control group. Intrusion of the humeral head to the supraspinatus outlet space from the bottom may be a contributing factor developing rotator cuff disease. The intrusion may precede to tearing of the rotator cuff.
Key Words: Shoulder; Rotator cuff disease; Supraspinatus outlet; MRI
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