Experience of reinnervation of the facial muscles after removal of large and giant vestibular schwannomas
Abstract
Restoration of the mimic muscles is one of the most difficult problems in reconstructive surgery.
PURPOSE OF THE STUDY: to evaluate the results of facial nerve neurotization performed at various times after removal of large and giant vestibular schwannomas.
MATERIAL AND METHODS: The study analyzed the results of reinnervation of the facial nerve in patients after removal of large and giant vestibular schwannomas. On the 10–14th day after the removal of the tumor, reinnervation of the facial nerve was performed on 4 patients, in the long-term period from 6 to 12 months — on 17 patients.
RESULTS. The best results were obtained with direct trigeminal reinnervation of the facial nerve, carried out as early as possible. In these patients, it is possible to achieve the function of facial muscles corresponding to the House-Brackmann II–III. The worst results were noted among patients who underwent neurotization within 11–12 months after removal of vestibular schwannoma. The function of facial muscles in these patients was recovered only to House-Brackmann IV–VI.
CONCLUSION. Normalization of the function of facial muscles is one of the primary tasks in patients after removal of large and giant vestibular schwannomas. The results of our study indicate the greatest effectiveness of reinnervating surgeries performed as early as possible. The main problem of reinnervating operations performed by the XI and XII cranial nerves were violations of the function of muscles innervated by donor nerves.
About the Authors
P. G. RudenkoRussian Federation
Rudenko Pavel Gennadievich
Krasnoyarsk
P. G. Shnyakin
Russian Federation
Shnyakin Pavel Gennadievich
Krasnoyarsk
V. P. Chumakov
Russian Federation
Chumakov Vladimir Pavlovich
Krasnoyarsk
A. V. Kanashin
Russian Federation
Kanashin Alexandr Vasilievich
Krasnoyarsk
A. A. Bashkov
Russian Federation
Bashkov Arsenii Alexandrovich
Krasnoyarsk
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Review
For citations:
Rudenko P.G., Shnyakin P.G., Chumakov V.P., Kanashin A.V., Bashkov A.A. Experience of reinnervation of the facial muscles after removal of large and giant vestibular schwannomas. Russian Neurosurgical Journal named after Professor A. L. Polenov. 2022;14(2):139-144. (In Russ.)