EMG aspects of the facial muscles reinnervation after seventh nerve autogenous grafts

G. Valli, S. Barbieri, P. Sergi, M. Arnaboldi, G. Scarlato

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Nine patients who underwent an autogenous graft after a seventh nerve lesion have been studied. The reinnervation was evaluated with clinical and electromyographic parameters. In one case the graft was ineffective, in three there was a moderate reinnervation, while in five subjects the functional recovery was good. These data have been compared with the findings obtained in five cases of severe idiopathic palsy in which an electromyographic control was carried out at least five months after the onset of the disease. The synkinetic activity was particularly rich in patients with a good recovery in both groups. Five subjects with nerve graft showed muscle contractures with EMG finding of continuous motor unit activity, while this phenomenon was present only in one case of the idiopathic palsy group.

Original languageEnglish
Pages (from-to)575-584
Number of pages10
JournalElectromyography and Clinical Neurophysiology
Issue number6
Publication statusPublished - 1981


ASJC Scopus subject areas

  • Clinical Neurology
  • Physiology

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