title: [Posterior petrosal approach - analysis of the surgical technique in cadavers simulation].
abstract: The aim of the study was to present consecutive stages of the posterior petrosal approach (PPA). Eighteen simulations of PPA were performed on non-fixed human cadavers without any known pathologies in the head and neck. The consecutive stages of the procedure were documented with photographs and schemes. The starting point for PPA is a temporal craniotomy, suboccipital craniectomy and mastoidectomy with keeping the bony labyrinth intact. Approach to the middle part of the clivus is achieved by raise of the temporal lobe and section of the superior petrosal sinus and tentorium and by mobilization the sigmoid sinus. Posterior petrosal approach is a reproducible technique, which provides surgical penetration of the middle clivus and related regions. It reduces the operating distance and allows to limit the cerebellum and temporal lobe traction and to preserve the anatomic integrity of the brain stem and cranial nerves of the cerebellopontine angle.
authors.affiliation: Katedra i Oddział Kliniczny Neurochirurgii, Śląski Uniwersytet Medyczny w Katowicach, Barbary. sekr_nch@wss5.pl
authors.forename: P
authors.initials: P
authors.lastname: Ladziński
authors.forename: M
authors.initials: M
authors.lastname: Maliszewski
authors.forename: W
authors.initials: W
authors.lastname: Kaspera
authors.forename: K
authors.initials: K
authors.lastname: Majchrzak
authors.forename: M
authors.initials: M
authors.lastname: Tymowski
authors.forename: B
authors.initials: B
authors.lastname: Błaszczyk
mesh_terms: D001921:Brain / Q000033:anatomy & histology* / Q000601:surgery*; D002102:Cadaver; D002530:Cerebellopontine Angle; D003388:Cranial Fossa, Posterior; D003399:Craniotomy / Q000379:methods; D006801:Humans; D008416:Mastoid / Q000601:surgery; D019635:Neurosurgical Procedures / Q000379:methods*; D015203:Reproducibility of Results