title: [Surgical anatomy of the petrous canal and posterior cranial fossa in relation to hearing preservation in surgery of acoustic neuroma].
abstract: The suboccipital (retrosigmoid) and the middle fossa routes are recommended for preservation of hearing in surgery for acoustic neuroma. We carried out a comparative study of the critical distances and bony landmarks on 520 petrous bones. Unlike the transtemporal route, the suboccipital approach offers no landmarks for identification of the common crus, the vestibule or the facial nerve; the lateral portion of the internal auditory canal is not always seen. The fundus can be seen in only 50% of bones without opening the labyrinth.
authors.affiliation: Klinik für Hals-Nasen-Ohren-Krankheiten, Humboldt-Universität zu Berlin.
authors.forename: U
authors.initials: U
authors.lastname: Jacob
authors.forename: H J
authors.initials: HJ
authors.lastname: Gerhardt
authors.forename: J
authors.initials: J
authors.lastname: Staudt
authors.forename: V
authors.initials: V
authors.lastname: Dilba
mesh_terms: D000293:Adolescent; D000328:Adult; D003388:Cranial Fossa, Posterior / Q000473:pathology / Q000601:surgery*; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000473:pathology / Q000517:prevention & control*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009464:Neuroma, Acoustic / Q000473:pathology / Q000601:surgery*; D009777:Occipital Bone / Q000601:surgery; D010579:Petrous Bone / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications / Q000473:pathology / Q000517:prevention & control*; D012886:Skull / Q000601:surgery*; D013701:Temporal Bone / Q000601:surgery
vernacular_title: Chirurgische Anatomie der Pars petrosa und der Fossa cranii posterior unter dem Aspekt der Hörerhaltung bei der Operation von Akustikusneurinomen.