Topographic Relations of the Inner Auditory Meatus

Authors: P. Vachata *,**;  M. Sameš *
Authors‘ workplace: Neurochirurgické odd. a Anatomická laboratoř lební báze, Masarykova nemocnice, Ústí nad Labem, přednosta prim. MUDr. M. Sameš, CSc. * Anatomický ústav 1. LF UK, Praha, přednosta doc. MUDr. M. Grim, CSc. **
Published in: Otorinolaryng. a Foniat. /Prague/, , 2002, No. 4, pp. 231-235.


Pathological conditions of the internal auditory canal and cerebellopontine angle aresolved by various operative approaches (retrosigmoid, transpetrosal, middle fossa). Perfect knowledgeof the topographical anatomy, including varieties and anomalies, is the basic prerequisite ofskull base surgery. The authors present a metric analysis of topographical relations of the internalauditory canal on 100 temporal bones. The group consists of 25 adult male and 25 female dry skullbases. The assessed values are consistent with the literature as regards the width-length index ofthe population. A high position of the jugular bulb is the most frequent and the most clinicalimportant variety. The results confirm the more frequent occurrence of a higher position of the bulbon the right side.No statistical significant intersexual differences were found in the set of monitoredsigns.

Key words:
temporal bone, internal auditory canal, anatomy.

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Audiology Paediatric ENT ENT (Otorhinolaryngology)
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