摘要
目的 为临床上处理岩斜坡区病变时保留外上半规管功能及听力提供参考。方法 在20例40侧成人尸头上模拟后半规管切除处理岩斜坡区病变,对后半规管切除后可以得到的暴露范围进行了研究,并进行了一些解剖测量,就如何避免损伤外、上半规管、颈静脉球、面神经、乙状窦、岩上窦等结构提出看法。结果 岩上窦下缘至颈静脉球顶之间的距离为(15.02±3.69)mm,乙状窦内侧至内淋巴管的距离为(10.62±2.09)mm;硬脑膜至外半规管后缘的距离为(6.21± 1.78)mm,至后半规管中点后缘距离为(4.07± 1.26)mm。结论 对于不超过1.0×1.0cm大小的岩斜坡区病变完全可以经此径路切除;对于侵及内听道的病变用此径路无法处理。
ve To provide anatomic information of treating medial skull base lesions as well as preserving audition and balance by partial labyrinthectomy. Methods Surgeries was simulated on 20 adult cadaveric specimens (40 sides), and relevant data were measured. Results The distance from superior petrosal sinus to jugular bulb was (15.02 ± 3.69) mm, from sigmoid sinus to endolymphatic duct was (10.62 ± 2.09) mm, from duramater to lateral semicircular canal was (6.21 ± 1.78) mm, and from duramater to posterior semicircular canal was (4.07±1.26) mm. Conclusion It is possible to treat petroclival lesions no bigger than 1.0 cm × 1.0 cm by posterior semicircular canal resection approach. It is useless for internal auditory canal lesions.
出处
《中国耳鼻咽喉颅底外科杂志》
CAS
2002年第2期78-79,I001,共3页
Chinese Journal of Otorhinolaryngology-skull Base Surgery
