Surgical treatment of synkinesiss between smiling and eyelid closure

Synkinetics movements are common among patients with incomplete recovery from facial palsy, with reported rates ranging from 9.1% to almost 100%.The authors propose the separation of the neural stimulus of the orbicularis oculi from that of the zygomatic muscular complex to treat eyelid closure/smiling synkinesiss. This technique, associated with an anastomosis between the masseteric nerve and a central branch of the facial nerve, as well as with the use of a cross-facial nerve graft, resolves most of the spasms of the midface musculature, leading to a more relaxed tone when the mimic muscle is at rest and enhancing muscle excursion during voluntary and spontaneous smiling.

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