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Clin Shoulder Elbow > Volume 15(1); 2012 > Article
Clinics in Shoulder and Elbow 2012;15(1):16-24.
DOI: https://doi.org/10.5397/CiSE.2012.15.1.16    Published online June 30, 2012.
Patterns of Retear After Repair of the Rotator Cuff - MRI Analysis of 109Cases -
Suk Kee Tae, Young Sung Kim, Ho Min Lee, Pan Kun Park
1Department of Orthopaedic Surgery, Dongguk University Ilsan Hospital, Gyeonggi-do, Korea.
2Department of Orthopaedic Surgery, Dongguk University Gyeongju Hospital, Gyeongju, Korea. shoulder2011@dongguk.ac.kr
회전근 개 봉합술 후 발생한 재파열의 양상 - 109예의 자기 공명 영상 검사 분석 -
태석기·김영성*·이호민*·박판건
동국대학교 일산병원 정형외과, 동국대학교 경주병원 정형외과
Abstract
PURPOSE
This study was designed to investigate the rate of incidence, location and the clinical value of the rotator cuff retear by analyzing MRI scans, which was taken after an arthroscopic rotator cuff repair. MATERIALS AND METHODS: This study included a total of 109 patients, who underwent a shoulder MRI scan after an average of 10.6 months later from the arthroscopic rotator cuff repair. We only defined the 'retear' when the Sugaya type IV and V was observed in the sagittal section of the MRI. The location of the retear was divided into the medial and lateral areas by the site, which was 1 cm medial to the anchor insertion. We investigated the incidence rate and the location of the retear, in terms of the age, sex, initial tear size and the suture method. Also, we compared the functional score of the retear group and the non-retear group, after an average of 13.9 months follow-up.
RESULTS
There were 38 of the 109 patients that showed the rotator cuff retear. Of these patients, 25 were male patients, and 13 were female patients. Of the 38 patients with the rotator cuff retear, 21 patients were included in the <3 cm retear group, and 17 were included in the > or =3 cm retear group. At the end of the follow up period, all 109 patients showed a statistical significant improvement in the shoulder functional score.
CONCLUSION
According to the follow up of the MRI scan, which was taken after the rotator cuff repair, the retear rate reached 34.9 %, and there were no significant differences on the age and the suture method. More rotator cuff retear occurred in male patients, and the initial tear size was positively correlated with the incidence rate of the rotator cuff retear. Also, the retear was more frequently observed at the medial side. That is because when the suture was performed, excessive tension was loaded on the medial side of the suture site.
Key Words: Rotator cuff retear; Arthroscopic rotator cuff repair; Shoulder MRI


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