title: Ultrasound Dimensions of the Rotator Cuff and Other Associated Structures in Korean Healthy Adults.
abstract: In evaluating patients complaining of shoulder pain, ultrasonography is an emerging imaging tool due to convenience, low cost, high sensitivity and specificity. However, normative values of ultrasound dimensions of the shoulder to be compared with pathologic findings in Korean adults are not provided yet. We evaluated the ultrasound dimensions of the rotator cuff, long head of biceps tendon, deltoid muscle and acromioclavicular joint in Korean healthy adults. Shoulder ultrasonography was performed on 200 shoulders from 100 healthy adults. The dimensions of the thickness of rotator cuff (supraspinatus, infraspinatus, subscapularis tendon), deltoid muscle, long head of biceps tendon, subacromial subdeltoid bursa, and acromioclavicular joint interval were measured in a standardized manner. Differences in measurements among sex, age, and dominant arms were compared. The thickness of rotator cuff tendons (supraspinatus, infraspinatus, subscapularis) and deltoid muscle were significantly different between men and women. The thickness of subacromial subdeltoid bursa was significantly different between men and women for non-dominant side. In rotator cuff tendon measurements, the differences between dominant and non-dominant shoulders were not significant, which means the asymptomatic contralateral shoulder can be used to estimate the normal reference values. When stratified by age divided by 10 years, the measurements of supraspinatus, subscapularis and deltoid thickness showed tendency of increase with the age. The acromioclavicular joint interval, on the other hand, revealed decreasing tendency. This report suggests normative values of ultrasound dimensions of healthy Korean population with varying age, and can be useful as reference values in evaluating shoulder pathology, especially in rotator cuff tendon pathology.
authors: Department of Rehabilitation Medicine, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Kyeongwon
authors: http://orcid.org/0000-0001-6185-0058
authors: K
authors: Kim
authors: Department of Rehabilitation Medicine, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Hong Geum
authors: http://orcid.org/0000-0002-3331-7421
authors: HG
authors: Kim
authors: Department of Rehabilitation Medicine, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Daeheon
authors: http://orcid.org/0000-0003-0653-8488
authors: D
authors: Song
authors: Department of Rehabilitation Medicine, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Jung Yoon
authors: http://orcid.org/0000-0002-4703-9266
authors: JY
authors: Yoon
authors: Department of Rehabilitation Medicine, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. coltrane@catholic.ac.kr.
authors: Myung Eun
authors: http://orcid.org/0000-0002-7308-2815
authors: ME
authors: Chung
mesh_terms: D000173:Acromioclavicular Joint / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D000328:Adult; D000368:Aged; D044466:Asian People; D057645:Deltoid Muscle / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D056910:Republic of Korea; D017006:Rotator Cuff / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D012782:Shoulder / Q000000981:diagnostic imaging; D013710:Tendons / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D014463:Ultrasonography / Q000592:standards
keywords: Reference Values; Rotator Cuff; Shoulder; Ultrasonography