脊柱腰骶段是脊柱病变的好发部位,如椎间盘突出、脊柱结核、脊柱原发性肿瘤等。同时脊柱腰骶段也是手术开展较多的部位,如椎体病灶清除术、椎间盘切除术、椎板融合及减压术和骶骨大部截除术等。因此腰骶椎的血供引起很多学者重视。早在本世纪初,Lexer 就用微血管造影术研究了人体椎骨的血液供应,并提出椎骨的营养动脉为终动脉,并在此基础上创立了骨髓炎和骨结核的栓塞学说。以后,很多学者相继研究了各段椎骨血供。近十年来,随着实验外科和脊柱手术的广泛开 Lumbar and sacral spine is a predilection for spinal lesions, such as disc herniation, spinal tuberculosis, spinal primary tumors. At the same time lumbosacral spine lumbosacral surgery is also carried out more parts, such as vertebral body debridement, discectomy, lamina fusion and decompression surgery and most of the sacral resection and so on. Therefore, the blood supply of lumbosacral vertebral many scholars attention. As early as the beginning of this century, Lexer studied the blood supply to human vertebrae by micro-angiography and proposed the vertebral vegetative artery as the terminal artery. On this basis, he established the embolism theory of osteomyelitis and tuberculosis. Since then, many scholars have studied the various sections of the vertebral blood supply. Nearly a decade, with the experimental surgery and spinal surgery wide open