髋臼区的血供及其临床意义

Blood Supply of Acetabulum and its Clinical Sig-nificance

三具健康成人新鲜骨盆标本（６个髋关节）以ＡＢＳ行动脉灌注，观察髋臼区的血液供应。髋臼区血供主要来源有臀上、臀下动脉关节支，旋股外侧动脉升支，旋股内侧动脉髋臼支和闭孔动脉等。这些血管在髋臼缘周边相互吻合，形成一个形态上近乎完整的环状动脉弓，通过此动脉弓又与髋臼周围许多血管相连，它是髋臼获得血供的重要结构。在髋臼周边行截骨术时，截骨线应距髋臼缘至少２ｃｍ以上，以避免损伤髋臼周边动脉弓，减少术后髋臼血供不良的机会。

AbstractUsing the arterial perfusion technique,6 fresh hipspecimens from 3 adult cadavers were injected withred-dye ABS and the blood supply of acetabulum wereobserved.The result showed that the blood supply ofacetabulum was derived from the arterial branches ofthe superior and inferior gluteal arteries, the obturato-rial artery, the ascending branches of the lateralfemoral circumflex artery, the acetabular branches ofthe medial femoral circumflex artery and the internalpudendal artery; and all these arteries communicatedeach other to constitute around the acetabulum a vas-cular circle which is the main nutrient resource of theacetabulum.While performing the spherical or rotational ac-etabular osteotomy, one should pay attention to pro-tect the integrity of the arterial circle around acetabu-lum. The plane of the osteotomy should be placed atleast 2 cm above the acetabular ridge,so as to avoiddamaging the arterial arch of the acetabulum.