Assessment of the mimic and masseteric muscles functional state in the surgical treatment of facial nerve dysfunction using the masticator nerve
Electromyographic examination of the masseteric and temporal muscles, as well as the circular muscles of the mouth and eyes was performed for diagnosis verification and in order to determine the extent of surgery during reinnervation of the facial muscles using the masticatory nerve in 42 patients of various age groups (from 20 to 79 years). All patients were divided into 4 groups. Postoperatively, this examination allowed evaluating the treatment effectiveness. Thirty-four patients noted the restoration of the denervated masseteric muscle bioelectric activity, which confirms the conduction of a nerve impulse along the masticatory nerve. The examination of facial muscles also confirmed the bioelectric activity restoration of the mouth and eyes circular muscles in 38 patients. Thus, the applied method made it possible to fully confirm the high efficiency of the proposed technique for reinnervation of facial muscles using the masticatory nerve.