title: Treatment protocol and surgical techniques for macrogenia.
abstract: BACKGROUND
  This study focused on the treatment protocol for macrogenia and surgical techniques of the semicircular ostectomy of the mandibular inferior border.
  
  
  METHODS
  Seven patients with macrogenia were treated following our treatment protocol including a preoperative assessment (the Delaire analysis), an operative design (three-dimensional reconstruction and simulation), operation techniques (semicircular ostectomy of the mandibular inferior border), and a postoperative evaluation.
  
  
  RESULTS
  Our treatment procedure provided an overall harmonizing effect on the lower facial contour. All 7 patients were satisfied with their aesthetic results. A few complications such as numbness and submental soft-tissue excess were observed, but they improved to different extent as time went by.
  
  
  CONCLUSIONS
  Our treatment protocol for macrogenia is of great use to make the surgeries to be precisely and safely done with satisfactory results.
authors.affiliation: Department of Maxillofacial Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing, China.
authors.forename: Shiyu
authors.initials: S
authors.lastname: Wang
authors.forename: Changsheng
authors.initials: C
authors.lastname: Lv
authors.forename: Lai
authors.initials: L
authors.lastname: Gui
authors.forename: Jiecong
authors.initials: J
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Jue
authors.initials: J
authors.lastname: Wang
mesh_terms: D000328:Adult; D002680:Chin / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery*; D002681:China; D003198:Computer Simulation; D004954:Esthetics; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D063168:Mandibular Osteotomy / Q000379:methods*; D063175:Mandibular Reconstruction / Q000379:methods*; D010027:Osteotomy / Q000379:methods*; D011378:Prognathism / Q000601:surgery; D036542:Tomography, Spiral Computed; D055815:Young Adult