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Clin Shoulder Elbow > Volume 16(1); 2013 > Article
Clinics in Shoulder and Elbow 2013;16(1):1-9.
DOI: https://doi.org/10.5397/CiSE.2013.16.1.1    Published online June 30, 2013.
Correlation Between Degree of Torn Rotator Cuff in MRI and Degenerative Change of Acromion and Greater Tuberosity in Simple Radiography
Jung Yun Choi, Jae Kwang Yum, Min Cheol Song
Department of Orthopedic Surgery, Sanggye Paik Hospital, College of Medicine, Inje University, Seoul, Korea. shoulder@paik.ac.kr
단순 방사선 사진에서 견봉 및 상완골 대결절의 퇴행성 변화와 MRI상 회전근 개 파열 정도와의 연관성
최정윤·염재광·송민철
인제대학교 의과대학 상계백병원 정형외과학교실
Abstract
PURPOSE
The purpose of this study is to analyze the correlation between the degree of torn rotator cuff as recorded by MRI and degenerative change of acromion and greater tuberosity of humerus determined by simple radiographs. MATERIALS AND METHODS: Of the 518 cases included in this study, a group of 234 cases had a chronic rotator cuff tear and a control group of 284 cases had an intact rotator cuff in shoulder MRI. The degree of degenerative changes was classified according to the length of spur and morphological change of acromion and greater tuberosity through the true anteroposterior simple radiograph in supraspinatus outlet view. The degree of tear (partial-thickness or full-thickness tear) and the size of complete rotator cuff tear were analyzed according to the MRI findings of shoulder. The authors also evaluated the correlation between the degree and size of torn rotator cuff and the degenerative change of acromion and greater tuberosity.
RESULTS
There were significant differences in the size and extent of torn rotator cuff according to the age, sex and degenerative change of acromion and greater tuberosity of humerus (p<0.001). More degenerative changes of acromion and greater tuberosity in simple shoulder radiographs showed the increased degree and size of torn rotator cuff (p<0.001). In addition, the higher degree and larger size of torn rotator cuff were noted in older age subjects (p<0.001) and in the female group (p<0.001).
CONCLUSION
More degenerative changes of acromion and greater tuberosity in simple shoulder radiographs showed the increased degree and size of torn rotator cuff. Therefore, if a high degree of degenerative change of the acromion and greater tuberosity on simple radiograph is noted, the possibility of degenerative rotator cuff tear should be considered. In addition, the age and sex could be associative factors for larger size of torn rotator cuff.
Key Words: Shoulder; Size of torn rotator cuff tear; Degenerative change of acromion and greater tuberosity; Simple radiography; MRI
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