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Transotic Approach To Cerebellopontine Angle

Anatomical Dissection and 2 clinical cases (left side)

1st Part: Anatomical Dissection

Lt - 75 min

  • General considerations
  • Surgical technique
  • Surgical steps and related instruments

2 nd Part: Clinical Cases

Lt – 28 min

  • Clin. Case 1: Acoustic Neuroma 2 cm (Lt - 24 min)
  • Clin. Case 2: Acoustic Neuroma 2.5 cm (Lt - 4 min)


  1. Retroauriculo-temporal skin incision
  2. Subtotal Petrosectomy
  3. Tympanic and mastoid fallopian canal (FC) left as a bridge over the cavity
  4. Tympanic bone removed to expose the infralabyrinthine compartment of the TB
  5. Otic capsula removed to expose the complete medial surface of the TB
  6. Maximal transtemporal exposure of the internal auditory canal (IAC) and CPA
  7. Direct anterior approach to the intratemporal part of the facial nerve (FN)
  8. Dura reconstructed with musculo-facial graft
  9. Cavity obliterated with fat wedged under the FC and temporalis muscle flap
Video No
Prof. Ugo Fisch
Video Editing
Dr. Arnold H. Müller