Introduction and aims: Functional muscle transfer (FMT) combined with cross-facial nerve grafting (CFNG) is the gold-standard treatment of long-standing unilateral facial palsy, but clinical series reveal frequent unpredictable underactivity and overactivity. Altering donor motor axon provision has been shown to affect ultimate FMT strength, potentially accounting for diverse clinical results. We therefore investigated the hypothesis that axon delivery to, and strength of, a FMT could be standardised despite varying motor axonal input by altering the calibre of the interposed nerve graft.
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© 2007 Published by Elsevier Inc.