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Observations report synkinesis effects in facial muscles, suggesting implications for rehabilitation practices.
Peripheral synkinesis is caused by the anatomical features of III-VII cranial nerves (pronounced branching and short length) and craniofacial muscles (presence of alternative sources of proprioception). Trigger points for facial palsy are an early marker of denervation that enhances synkinesis. Their inactivation is reasonable. There are no true contractures of facial muscles; they are mistaken for tonic synkinesis or myokymia. The use of peripheral synkinesis in medical rehabilitation has no pathogenetic ground.
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Petrov et al. (2026) studied this question.
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