Approaches to the Cerebellopontine Angle

摘要: In this chapter, the three main operative approaches to internal auditory canal and cerebellopontine angle—the retrosigmoid, translabyrinthine, middle fossa approach—are discussed. The approach is utilized usually in case of small tumors, which there an opportunity preserve hearing, especially those located mainly laterally within IAC. extended used VSs with less than 1-cm extension into angle. TL widely for removal when hearing preservation not issue. combination other approaches, it various cranial base tumors. retrosigmoid a safe, elegant, relatively simple technique, related very low procedure-related morbidity rate. With modifications, described corresponding chapters book, provides access all levels angle their structures: petroclival area, Meckel’s cave, part fossa; posterior petrous bone; jugular foramen; craniocervical junction. among most frequently routes neurosurgery.