Translabyrinthine and Transcochlear Petrosal Approaches

  • Antonio Bernardo
  • Philip E. Stieg


The objective of transtemporal surgery is wide skull-base exposure obtained by precise anatomic management of the temporal bone. These techniques involving the collaboration of neurotologists and neurosurgeons provide ample surgical exposure and minimize brain retraction during access to posterior and lateral skull-base lesions. The transpetrosal surgical routes can be classified broadly into anterior and posterior. The posterior transpetrosal approaches include the retrolabyrinthine, translabyrinthine and transcochlear, whereas the anterior approaches are extensions of the basic middle fossa approach. The posterior approaches are based on the standard mastoidectomy, and involve resection of the otic capsule to various degrees which provides the most direct route to the internal auditory canal (IAC) and the cerebellopontine angle (CPA) without the need for brain retraction.


Facial Nerve Semicircular Canal Sigmoid Sinus Internal Auditory Canal Jugular Bulb 
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Copyright information

© Springer-Verlag Italia 2010

Authors and Affiliations

  • Antonio Bernardo
    • 1
  • Philip E. Stieg
    • 1
    • 2
  1. 1.Dept of Neurological Surgery, Weill Medical CollegeCornell UniversityNew YorkUSA
  2. 2.New York-Presbyterian HospitalNew YorkUSA

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