臀下动脉的解剖学研究

目的 研究臀下动脉的走行及变异情况，为临床手术应用该动脉供养的臀大肌肌皮瓣提供解剖依据。方法 选用10具18侧经红色乳胶液动脉灌注的标本，直视下解剖标本，显露臀下动脉及其周围组织，观察其走行情况。其中男性11侧，女性7侧，左9侧，右9侧。结果 臀下动脉通常自梨状肌下孔出骨盆，沿坐骨神经内侧向下走行，在出骨盆后平均于17．3、33．2及51.8mm处依次发出髋关节支、坐骨神经支及臀大肌支分别营养其支配区组织。18侧中共有7侧(其中女性5侧)属变异。结论 臀下动脉走行相对比较稳定，但变异较多，故术前宜行相关检查如彩色多普勒超声以大致确定动脉走行及分布情况。

Anatomic observation of inferior gluteal artery

Objective Observe the course,distribution and variation of inferior gluteal artery to provide an anatomic basis. Methods 18 specimen(11 male and 7 female.9 left and 9 right)were perfused with red latex to show inferior gluteal arteries and the tissue around them. Results Usually inferior gluteal artery travels through infrapiriform foramen and goes down along ischiadicus nerve.It gives three main branches as ramus of articularis,ramus of ischiadicus,ramus of musculares at average distances of 17.3 mm,33.2 mm and 51.8 mm to infrapiriform foramen and nourishes them respectively. However, variation was found in 7 of 18 specimen(5 are female). Conclusions The course of inferior gluteal artery is steady in most cases,but sometimes variation can be found.Special examinations such as colour Doppler ultrasound are suggested to find the course of inferior gluteal artery on the whole level before operation. ;