Chansky H A, Iannotti J P
Department of Orthopaedic Surgery, Hospital of the University of Pennsylvania, Philadelphia.
Clin Sports Med. 1991 Oct;10(4):807-22.
The major arterial supply to the rotator cuff is derived from the ascending branch of the anterior humeral circumflex artery, the acromial branch of the thoracoacromial artery, as well as the suprascapular and posterior humeral circumflex arteries. The pathogenesis of rotator cuff tears has been considered to be influenced by the microvascular supply of the rotator cuff tendons. Most cadaver studies have demonstrated a hypovascular area within the critical zone of the supraspinatus tendon. It has been suggested that this area of hypovascularity has a significant role in the attritional degeneration of the aging tendon. More recent studies of the microvascular supply to the supraspinatus tendon in symptomatic patients with impingement syndrome suggest that in the area of greatest impingement, i.e., the critical zone, there is actually hypervascularity. In contrast to the cadaver investigations, these studies seem to imply that hypervascularity or neovascularization is associated with symptomatic rotator cuff disease secondary to mechanical impingement.
肩袖的主要动脉供应来自肱前外侧动脉升支、胸肩峰动脉肩峰支、肩胛上动脉以及旋肱后动脉。肩袖撕裂的发病机制被认为受肩袖肌腱微血管供应的影响。大多数尸体研究表明，冈上肌腱关键区域内存在血管减少区。有人提出，这个血管减少区域在老化肌腱的磨损性退变中起重要作用。最近对有撞击综合征症状患者的冈上肌腱微血管供应的研究表明，在撞击最严重的区域，即关键区域，实际上存在血管增多。与尸体研究相反，这些研究似乎暗示血管增多或新生血管形成与机械性撞击继发的有症状肩袖疾病有关。
