caa a22 4500 605458707 CHVBK 20210128100230.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00167-013-2808-1 doi (NATIONALLICENCE)springer-10.1007/s00167-013-2808-1 Internal rotation resistance test at abduction and external rotation: a new clinical test for diagnosing subscapularis lesions [Elektronische Daten] [Lin Lin, Hui Yan, Jian Xiao, Yingfang Ao, Guoqing Cui] Purpose: A new clinical test for evaluating subscapularis (SSC) integrity was described, and its diagnostic value was compared with the present SSC tests (the lift-off, belly-press, IRLS and bear-hug tests). The new test is called internal rotation resistance test at abduction and external rotation (IRRT). The test is performed at maximal 90° of abduction and maximal external rotation. Methods: Two hundred and thirty-five consecutive patients suffering from rotator cuff injury were evaluated preoperatively. Six tests were performed to assess the function of the SSC: the lift-off, belly-press, IRLS, the bear-hug, IRRT at 0° abduction and 0° external rotation (IRRT0°) and IRRT at maximal 90° abduction and maximal external rotation (IRRTM). Arthroscopic findings were the reference for diagnosing of SSC lesions. Results: The IRRTM test showed the greatest sensitivity (76.5%), and IRLS (31.6%) test had the lowest sensitivity. The IRRTM had the highest accuracy (79.0%), and lift-off had the lowest accuracy (65.3%). Positive IRRTM, bear-hug, belly-press, IRRT0° tests indicate that about one-third of the SSC is torn, and a positive lift-off and IRLS tests predict a severe tear at least two-thirds of the SSC. Conclusions: The IRRTM represents a sensitive diagnostic test for SSC lesions and improves the chance of finding the upper part of the SSC tears. When the IRRTM is positive, the surgeon should pay particular attention to detecting the SSC tendon during arthroscopy. Level of evidence: Diagnostic study, Level I. Springer-Verlag Berlin Heidelberg, 2013 Internal rotation resistance test nationallicence Subscapularis nationallicence Clinical tests nationallicence Arthroscopy nationallicence Lin Lin Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut Yan Hui Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut Xiao Jian Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut Ao Yingfang Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut Cui Guoqing Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/4(2015-04-01), 1247-1252 0942-2056 23:4<1247 2015 23 167 https://doi.org/10.1007/s00167-013-2808-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-013-2808-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lin Lin Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Yan Hui Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Xiao Jian Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Ao Yingfang Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Cui Guoqing Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, 100191, Beijing, People's Republic of China aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/4(2015-04-01), 1247-1252 0942-2056 23:4<1247 2015 23 167