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经迷路到小脑桥脑角是通过颞骨做后颅窝脑切除术的一种入路。标准的经迷路途径涉及清除乳突气房和覆盖在中颅窝脑膜、半规管、乙状窦及后颅窝脑膜表面的骨板。其术野的显露在前方受内听道、后方受颈静脉球的限制,还受乙状窦前置或乳突腔狭小的影响。现介绍一种扩大经迷路手术的显露方法:完成标准的经迷路手术入路后,在显微镜下,于岩上窦的上方和下方,分别做平行于岩上窦的1cm长的硬膜切口,在靠近内听道及岩上窦与乙状窦的
Lost to the cerebellopontine angle is through the temporal bone posterior fossa brain resection approach. The standard labyrinthine approach involves the removal of the mastoid atria and the platelets covering the meninges of the middle cranial fossa, the semicircular canal, the sigmoid sinus, and the posterior fossa. The exposed field of surgery in the front by the internal auditory canal, the rear by the jugular bulb ball limit, but also pre-sigmoid sinus or mastoid cavity narrow impact. A method of enlarging the procedure of labyrinthine surgery is described: After completing the standard labyrinthine approach, a 1 cm long dural incision parallel to the supraspinatus under the microscope, above and below the supraspinatus, Within the auditory canal and petrous sinus and sigmoid sinus