title: [Measurement of the dura mater displacement in median suboccipital puncture].
abstract: Report of a study of the dynamic anatomy of the median suboccipital puncture of the cisterna magna cerebello medullaris, carried out on fresh cadavers. Direct inspection of the internal surface of the dura mater (DM) at the craniocervical region was possible by removing the calvarium and brain (sectioned at the upper cervical cord), during routine necropsies. Dislocation of the DM over the needle tip preceding dural penetration (so-called "dural tenting") was observed in all punctures (n = 30), measuring 3.12 (2.0-4.2) mm.
authors.affiliation: Departamento de Neuro-Psiquiatria da Faculdade, Universidade Católica de Campinas, Brasil.
authors.forename: S L
authors.initials: SL
authors.lastname: Rossitti
authors.forename: I R
authors.initials: IR
authors.lastname: Thomaz
authors.forename: R J
authors.initials: RJ
authors.lastname: Balbo
mesh_terms: D000328:Adult; D002946:Cisterna Magna / Q000033:anatomy & histology*; D004388:Dura Mater / Q000033:anatomy & histology*; D006801:Humans; D011677:Punctures / Q000379:methods*
vernacular_title: Mensuração do deslocamento da dura-máter na punção suboccipital mediana.