title: Intraoral one-stage curved osteotomy for the prominent mandibular angle: a clinical study of 407 cases.
abstract: BACKGROUND
  Many Oriental people have a square face with a prominent mandibular angle. This article presents a good osteotomy method for the prominent mandibular angle (PMA).
  
  
  METHODS
  Two modifications of the conventional procedures have been made. The first is a one-stage curved osteotomy for the mandibular angle. The second is nonresection of the masseter muscle. The surgical procedure has been performed using an intraoral approach with a direct field of vision.
  
  
  RESULTS
  From October 1996 to December 2002, a total of 407 patients with PMA underwent surgery using this method with satisfactory results. The PMA osteotomy procedure was performed for only 248 patients. In addition, 29 patients received concurrent zygomatic reduction osteotomy, 38 patients underwent concurrent genioplasty, 41 patients had concurrent chin augmentation with excised PMA bone fragment, 2 patients received concurrent submental liposuction, and 39 patients underwent concurrent buccal fat pad resection.
  
  
  CONCLUSIONS
  The described method is a very simple procedure with fewer complications for the surgical treatment of PMA.
authors.affiliation: Department of Cranio Maxillo-Facial Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, BaDaChu Road, Beijing 100041, China.
authors.forename: Lai
authors.initials: L
authors.lastname: Gui
authors.forename: Dong
authors.initials: D
authors.lastname: Yu
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Zhang
authors.forename: L V
authors.initials: LV
authors.lastname: Changsheng
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Tang
authors.forename: Zhongmei
authors.initials: Z
authors.lastname: Zheng
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery*; D008875:Middle Aged; D009055:Mouth / Q000601:surgery*; D010027:Osteotomy / Q000379:methods*; D019651:Plastic Surgery Procedures / Q000379:methods*