Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 23, Issue 5, pp 1467–1472

Blood flow changes of the anterior humeral circumflex artery decrease with the scapula in internal rotation

  • Yoshihiro Hagiwara
  • Kenji Kanazawa
  • Akira Ando
  • Akimoto Nimura
  • Takashi Watanabe
  • Kazuhiro Majima
  • Keiichi Akita
  • Eiji Itoi
Shoulder

DOI: 10.1007/s00167-013-2823-2

Cite this article as:
Hagiwara, Y., Kanazawa, K., Ando, A. et al. Knee Surg Sports Traumatol Arthrosc (2015) 23: 1467. doi:10.1007/s00167-013-2823-2
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Abstract

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 (22–48 years, 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.

Keywords

Humeral circumflex artery Shoulder MRI Blood flow Scapular position Posture 

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Yoshihiro Hagiwara
    • 1
  • Kenji Kanazawa
    • 1
  • Akira Ando
    • 1
  • Akimoto Nimura
    • 2
  • Takashi Watanabe
    • 3
  • Kazuhiro Majima
    • 4
  • Keiichi Akita
    • 2
  • Eiji Itoi
    • 1
  1. 1.Department of Orthopaedic SurgeryTohoku University School of MedicineSendaiJapan
  2. 2.Unit of Clinical Anatomy, Graduate SchoolTokyo Medical and Dental UniversityTokyoJapan
  3. 3.Division of Epidemiology, Department of Public Health and Forensic MedicineTohoku University Graduate School of MedicineSendaiJapan
  4. 4.Department of RadiologyTakeda General HospitalAizuwakamatsuJapan

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