caa a22 4500 605460051 CHVBK 20210128100236.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00167-013-2823-2 doi (NATIONALLICENCE)springer-10.1007/s00167-013-2823-2 Blood flow changes of the anterior humeral circumflex artery decrease with the scapula in internal rotation [Elektronische Daten] [Yoshihiro Hagiwara, Kenji Kanazawa, Akira Ando, Akimoto Nimura, Takashi Watanabe, Kazuhiro Majima, Keiichi Akita, Eiji Itoi] Purpose: Poor posture is strongly related to scapular kinematics and shoulder diseases. The purpose of this study was to clarify the blood flow changes of the anterior and posterior humeral circumflex arteries in reference to the scapular position and to clarify anatomical features related to the changes in blood flow. Methods: Cadaveric shoulders were dissected to elucidate the anatomical difference between the two arteries. The blood flow of these arteries in healthy volunteers (22-48years, 113 shoulders) was evaluated by MRI with changing the position of the scapula (internal and external rotation). Results: The anterior humeral circumflex artery was attached to the subscapularis tendon and located beneath the subdeltoid bursa. The posterior humeral circumflex artery was located between the deltoid muscle and the bursa, which allowed free movement during scapular motion. There were no direct extraosseous anastomoses between the two arteries. Compared with the posterior humeral circumflex artery, the anterior humeral circumflex artery decreased blood flow with the scapula in internal rotation. Conclusions: No direct extraosseous anastomoses between the two arteries were observed. Internal rotation of the scapula decreased blood flow of the anterior humeral circumflex artery, which might be related to various pathologies of the shoulder. Level of evidence: Diagnostic studies, Level III. Springer-Verlag Berlin Heidelberg, 2014 Humeral circumflex artery nationallicence Shoulder nationallicence MRI nationallicence Blood flow nationallicence Scapular position nationallicence Posture nationallicence Hagiwara Yoshihiro Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut Kanazawa Kenji Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut Ando Akira Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut Nimura Akimoto Unit of Clinical Anatomy, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan aut Watanabe Takashi Division of Epidemiology, Department of Public Health and Forensic Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut Majima Kazuhiro Department of Radiology, Takeda General Hospital, 3-27 Yamaga-machi, 965-8585, Aizuwakamatsu, Japan aut Akita Keiichi Unit of Clinical Anatomy, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan aut Itoi Eiji Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1467-1472 0942-2056 23:5<1467 2015 23 167 https://doi.org/10.1007/s00167-013-2823-2 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/s00167-013-2823-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hagiwara Yoshihiro Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut NATIONALLICENCE 700 1- Kanazawa Kenji Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut NATIONALLICENCE 700 1- Ando Akira Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut NATIONALLICENCE 700 1- Nimura Akimoto Unit of Clinical Anatomy, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan aut NATIONALLICENCE 700 1- Watanabe Takashi Division of Epidemiology, Department of Public Health and Forensic Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut NATIONALLICENCE 700 1- Majima Kazuhiro Department of Radiology, Takeda General Hospital, 3-27 Yamaga-machi, 965-8585, Aizuwakamatsu, Japan aut NATIONALLICENCE 700 1- Akita Keiichi Unit of Clinical Anatomy, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan aut NATIONALLICENCE 700 1- Itoi Eiji Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1467-1472 0942-2056 23:5<1467 2015 23 167