title: [A retrospective study on the complications after modified parotidectomy in benign tumors of parotid gland].
abstract: OBJECTIVE
  A retrospective clinic study is presented of surgical patients undergoing a modified parotidectomy with conserving the sub-superficial musculoaponeurotic system (sub-SMAS) and great auricular nerve and reconstructing by the stemocleidomastoid flap (SF). The incidence of clinical complications was observed after the parotidectomy.
  
  
  METHODS
  226 patients were divided randomly into four groups. Group 1 (94 cases) were operated by the conserving the sub-SMAS. Group 2 were operated by the sub-SMAS and constructed by SF. Group 3 (57 cases) were treated by the subcutaneous flap (sub-CF). Group 4 (33 cases) were received by sub-CF and SF. The surgical technique was described and the incidence of clinical Frey's syndrome was evaluated by minor test (starch-iodine test) and observed gustatory sweating syndrome. The feeling and concave of the region of auricular lobule were followed up.
  
  
  RESULTS
  The incidence of Frey's syndrome in group 1 (5.32%) or group 2 (4.76%) was significantly lower than that of group 3 (49.1%) or group 4 (51.5%) through by subjective observation and minor test (P < 0.005). The significance between group with SF and group without SF existed in protecting the concave of the region of auricular lobule (P < 0.05). The feeling of the region of auricular lobule had no change by preserving the great auricular nerve.
  
  
  CONCLUSIONS
  There was good effect to prevent gustatory sweating syndrome in parotidectomy of reserve parotid fascia. The aesthetics and sense of the region of auricular lobule could be prevented by using SF and reserving the great auricular nerve.
authors.affiliation: Dept. of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, China.
authors.forename: Hong-wei
authors.initials: HW
authors.lastname: Zhao
authors.forename: Long-jiang
authors.initials: LJ
authors.lastname: Li
authors.forename: Bo
authors.initials: B
authors.lastname: Han
authors.forename: Hua
authors.initials: H
authors.lastname: Liu
authors.forename: Jian
authors.initials: J
authors.lastname: Pan
mesh_terms: D005145:Face; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms; D010306:Parotid Gland / Q000601:surgery*; D019651:Plastic Surgery Procedures; D012189:Retrospective Studies; D013524:Surgical Flaps; D013547:Sweating, Gustatory