【摘要】 目的:为听神经瘤显微外科治疗提供解剖学参数。方法:对35具甲醛固定的男性成人尸颅的脑桥小脑三角及毗邻结构进行解剖学测量。结果:横窦乙状窦膝至内耳门后缘的距离约为(35.1±0.2)mm。乙状窦起始端最大宽为13.4 mm。内耳门后缘至内淋巴囊裂孔的距离为(10.5±0.2)mm,内耳门至岩上窦的距离通常小于5 mm。内耳门至颈静脉孔的距离为5.4 mm。横窦乙状窦膝在小脑表面对应的膝点至绒球外侧缘的距离左侧为(31.3±0.5)mm,右侧为(30.4±0.5)mm;至扁桃体内侧缘的距离左侧为(44.1±0.4)mm,右侧为(43.3±0.4)mm。结论:这些数据是重要的解剖参数,是保证手术顺利进行、不损伤重要结构的解剖学依据。更多还原

【Abstract】 Objective : To supply anatomic parameters for microsurgical treatment of acoustic neurinomas. Methods : Measurements were performed on the pontocerebellar trigone in 35 male adult cadva heads. Results : The distance between knee of transverse sigmoid sinus and posterior border of internal acoustic porus was (35.1 ± 0.2) mm. The width of sigmoid sinus hinitiation was 13.4 mm. The distance between posterior border of internal acoustic meatus and endolym-phytic sac hiatus was (10.5±0.2) mm, the distance between internal acoustic porus and superior petrosal sinus was usually shorter than 5 mm. The distance between internal acoustic porus and jugular foramen was 5.4 mm. On the left, the distance between knee point on the cerebellum and the lateral edge of flocculus was (31.3±0.5) mm; on the right, the distance was (30.4 ± 0.5) mm. On the left, the distance between knee point on the cerebellum and the medial edge of tonsil of cerebellum was (44. 1 ± 0. 4) mm; on the right, the distance was (43. 3 ± 0. 4) mm. Conclusion : These anatomic parameters are important in localization and protection of vital structures during operation.更多还原