Microsurgical Resection of Large Acoustic Neuromas via Suboccipito-retrosigmoid Approach

Objective To study the approach and methods of the microsurgical resection of large acoustic neuromas. Method The large acoustic neuromas were microsurgically removed via suboccipitol-retrosigmoid appoach in 33 patients. Results Of 33 cases of the large acoustic neuromas, 29 were totally resected and 4 subtotally. There were no postoperative haematoma, air embolism and death. Follow up for 2 months to 4 years showed that all the patients could normally work and study, but 3 patients had facial paralysis. Conclusions Microsurgical operation via the suboccipito-retrosigmoid approach is the best way of treating the large acoustic neuromas and can well protect the function of the acoustic and facial nerves.