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目的观察骶直肠筋膜在轴向腰骶椎椎间融合术中的应用解剖。方法 10具(20侧)男女骨盆标本,观察骶直肠筋膜的位置,并进行相关解剖学测量。结果 (1)骶直肠筋膜起自S3者较多,为44.4%,将骶前间隙分为上下两部分;(2)男性骶直肠筋膜跨越直肠两侧连于骨盆腔壁腹膜,女性的则两侧跨越直肠后连于直肠子宫襞;(3)骶直肠筋膜长度(23.14±1.41)mm、厚度(1.25±0.13)mm,距离手术切口(66.10±7.03)mm、距离S1/S2横线中点(23.09±1.87)mm。结论 (1)骶直肠筋膜在骶前间隙内普遍存在,术中应对其进行锐性分离以避免骶前静脉丛撕裂伤;(2)女性骶直肠筋膜可能为子宫骶韧带的一部分。
Objective To observe the anatomy of sacral and rectal fascia in axial lumbosacral fusion. Methods Ten (20 sides) pelvic specimens were examined for the sacral rectum fascia and related anatomical measurements. Results (1) Sacral rectal fascia from S3 more, 44.4%, the presacral space is divided into two parts; (2) male sacral rectum fascia across the rectum connected to the pelvic peritoneum on both sides of the female (3) The length of sacral rectum fascia (23.14 ± 1.41) mm, thickness (1.25 ± 0.13) mm, distance from the surgical incision (66.10 ± 7.03) mm, distance S1 / S2 Midline (23.09 ± 1.87) mm. Conclusions (1) The sacral rectum fascia is prevalent in the presacral space. During surgery, it should be sharply separated to avoid rupture of presacral venous plexus. (2) Female sacral rectal fascia may be part of the uterosacral ligament.