[Facial nerve surgery with increasing innervation of correct target]

Aberrant regeneration of facial nerve has a higher propensity to innervate the wrong target. This study states that transection of these nonsomatic motor nerve will increase the innervation of correct target, which is cataloged as 'transection group', and preservation of nonsomatic motor nerve as 'untransection group'. According to the House grading system for reporting recovery of the facial nerve, in incomplete lesions (Bell's palsy, Hunt's syndrome, trauma etc) treated with nerve total or subtotal decompression (101 cases), transection group produced better voluntary functional movement (average grade 1.66 +/- 0.74) than untransection group (average grade 2.81 +/- 0.87). In complete lesions (trauma, tumor and chemical destruction etc) treated with nerve grafting (65 cases), transection group obtained better improvement (average grade 2.63 +/- 0.73) than untransection group (average grade 3.65 +/- 0.78).