title: [Facial nerve dysfunction after various surgical managements for benign parotid tumor].
abstract: OBJECTIVE
  To observe the incidence of facial nerve dysfunction following parotidectomy and the relationship of the extent of parotid gland resection and the histopathology types.
  
  
  METHODS
  Clinical observation of 99 patients who underwent parotid surgery from 1996 to 2000 was studied to analyse the relation between facial nerve dysfunction and the extent of parotidectomy with House-Backmann grading system.
  
  
  RESULTS
  The overall incidence of facial dysfunction (HB > 1) was 36.4% for temporary and 3% for permanent dysfunction; Most of the dysfunction were partial and most concerning the marginal mandibular branch (34/99). The temporary facial dysfunction rate in total parotidectomy is higher than that of superficial and local parotidectomy.
  
  
  CONCLUSIONS
  The dysfunction of facial nerve branches is correlated with the surgical managements. The most facial never dysfunction is temporary. The size of the lesion and the histopathology types will influence the choice of surgical managements. A proper surgical managements would reduce the incidence of facial dysfunction.
authors.affiliation: Department of Maxillo-Facial Surgery, Xiangya Hospital, Central South University, Changsha 410008, China.
authors.forename: X R
authors.initials: XR
authors.lastname: Ou
authors.forename: H B
authors.initials: HB
authors.lastname: Su
mesh_terms: D008949:Adenoma, Pleomorphic / Q000601:surgery*; D005154:Facial Nerve / Q000503:physiopathology; D005155:Facial Nerve Diseases / Q000503:physiopathology*; D020220:Facial Nerve Injuries / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D010306:Parotid Gland / Q000601:surgery; D010307:Parotid Neoplasms / Q000601:surgery*; D011183:Postoperative Complications / Q000517:prevention & control*