Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
THE ENDOLYMPHATIC SAC - MICROSURGICAL TOPOGRAPHIC ANATOMY
Autore:
AMMIRATI M; SPALLONE A; FEGHALI J; MA JY; CHEATHAM M; BECKER D;
Indirizzi:
UNIV CALIF LOS ANGELES,CTR HLTH SCI,DIV NEUROSURG,ROOM 74-140,10833 LE CONTE AVE LOS ANGELES CA 90024 MONTEFIORE MED CTR,ALBERT EINSTEIN COLL MED,DEPT OTOLARYNGOL BRONX NY10467 UNIV ROME,DIV NEUROSURG ROME ITALY
Titolo Testata:
Neurosurgery
fascicolo: 2, volume: 36, anno: 1995,
pagine: 416 - 419
SICI:
0148-396X(1995)36:2<416:TES-MT>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEARING PRESERVATION; SURGICAL ANATOMY; POSTERIOR; REMOVAL; SURGERY; HYDROPS; MOUSE;
Keywords:
ENDOLYMPHATIC SAC; HEARING PRESERVATION; POSTERIOR FOSSA SURGERY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
M. Ammirati et al., "THE ENDOLYMPHATIC SAC - MICROSURGICAL TOPOGRAPHIC ANATOMY", Neurosurgery, 36(2), 1995, pp. 416-419

Abstract

THE ENDOLYMPHATIC SAC is part of the membranous labyrinth; it plays an important role in the hearing mechanism. Injury to the endolymphaticsac may, over time, severely compromise hearing. The endolymphatic sac is located in a duplication of the dura of the posterior aspect of the petrous pyramid and is, therefore, in the surgical field of many neurosurgical operations performed on the posterolateral cranial base. The endolymphatic sac was exposed bilaterally in 10 anatomic specimens;the distance from the center of the sac to the posterior lip of the internal auditory meatus and to the XIth nerve in the jugular foramen was measured with a caliper. Also measured was the distance between thecenter of the sac and the closest point on the petrous ridge and the distance between that point and the petro-sigmoid intersection. The petro-sigmoid intersection was defined as the point at which the medial aspect of the sigmoid sinus intersects the lateral aspect of the petrous ridge. The dimensions of the sac were also recorded. On the average, the sac was found to be 15.7 mm posterosuperior (superolateral) to the XIth nerve in the jugular foramen (range, 11.0-18.5 mm) and 13.3 mmposterior (lateral) to the internal auditory meatus (range, 10.0-18.0mm). The center of the sac was 24.1 mm (mean value) (range, 20.0-28.0mm) in front of the petro-sigmoid intersection at a point 11.5 mm (mean value) (range, 8-17 mm) below the petrous ridge. The mean width andheight of the sac were 3.83 (range, 2-6 mm) and 3.80 mm (range, 2.5-8mm), respectively. The anatomical landmarks selected (XIth nerve, internal auditory meatus, petrous ridge, petro-sigmoid intersection) are identifiable during neurosurgical procedures on the posterolateral cranial base. Knowing the general relationships between these landmarks and the endolymphatic sac may help the neurosurgeon to correctly localize the sac and to protect it during surgery to avoid inadvertent lesions to the hearing mechanism.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 12:42:25