Intracranial repair of interrupted facial nerve in course of operation for acoustic neurinoma by microsurgical technique

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Abstract
The microsurgical refinement of the lateral suboccipital approach is, in our opinion, the most satisfactory operative technique for achieving total removal of acoustic neurinomas of all sizes. In this series of 164 operated cases, large or very large tumours accounted for 64% of the cases (105 patients). The facial nerve was sacrificed in about 19% of the cases. In 81% of the cases the facial nerve was respected (65%) or repaired (16%) by direct intracranial suture performed immediately after tumour removal. Good or fair functional results were obtained in about 65% of the cases by this last procedure, which has to be considered as the treatment of choice for facial nerve repair. The results are compared with those of other series and with those obtained by different nerve substitution procedures.