Accessory Nerve InjuriesAccessory NerveNeck DissectionAccessory Nerve DiseasesNeckHead and Neck NeoplasmsPeripheral Nerve InjuriesCarcinoma, Squamous CellLymphatic MetastasisNerve TransferParalysisShoulderFree RadicalsGlossectomyHypoglossal Nerve InjuriesSciatic NerveDissectionNeck MusclesThyroid NeoplasmsGlossopharyngeal NerveCranial Nerve InjuriesIatrogenic DiseaseScapula