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After nerve injury and facial palsy, many patients have permanent muscle and sensory dysfunction. Electrical stimulation (ES) of injured nerves may speed up axon growth and improve recovery. This study will assess if ES accelerates motor axon regeneration and improves muscle recovery in patients undergoing two-staged facial reanimation for facial palsy. This study of ES in these patients will investigate: i) nerve regeneration over long distances; ii) direct evidence of changes in nerve regeneration with nerve samples from the second procedure; and iii) changes in functional outcomes in a patient population with much less variability. Our study will provide evidence about the effect of ES in improving outcomes in patients with nerve injuries.
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Change in Pre-Operative Lip Excursion with Smile
Timeframe: Change from Baseline (Pre-Op) over 2 Years
Change in Myelinated Axon Count
Timeframe: Change from Baseline (Pre-Op) to the Final Surgery 1 Year Later