title: [Correction of low angel-square jaw with mandibular "V-Line" ostectomy combined with mandibular outer cortex ostectomy].
abstract: OBJECTIVE
  To evaluate the feasibility of mandibular "V-Line" osteotomy combined with mandibular outer cortex osteotomy for correction of low angle-square jaw.
  
  
  METHODS
  From Jul. 2005 to Nov. 2007, 31 patients with low angle-square jaw were corrected with mandibular "V-Line" osteotomy combined with mandibular outer cortex osteotomy. The patients were followed up for 6-24 months. Pre- and Post-operative standard images and X-ray cephalometric examination were used to assess the therapeutic effect.
  
  
  RESULTS
  The wounds were healed primarily in all the 31 cases with no severe complication. The lower labial numbness was happened in 13 cases, which was recovered within 4 months. All the patients achieved esthetic improvement at the frontal and lateral view. The mandibular angle and the mandibular plane angle reached 110 degrees - 120 degrees and 25 degrees - 30 degrees after operation. The distance between the angles was decreased.
  
  
  CONCLUSIONS
  The low angle-square jaw can be corrected satisfactorily with mandibular "V-Line" osteotomy combined with mandibular outer cortex osteotomy.
authors.affiliation: epartment of Orthognathic Surgery, West China College of Stomatology, Sichuan University, Chengdu 610064, China.
authors.forename: Yu-chun
authors.initials: YC
authors.lastname: Xu
authors.forename: J-ihua
authors.initials: JI
authors.lastname: Li
authors.forename: Jing
authors.initials: J
authors.lastname: Hu
authors.forename: Song-song
authors.initials: SS
authors.lastname: Zhu
authors.forename: En
authors.initials: E
authors.lastname: Luo
authors.forename: Da-zhang
authors.initials: DZ
authors.lastname: Wang
mesh_terms: D000328:Adult; D005240:Feasibility Studies; D005500:Follow-Up Studies; D006801:Humans; D007569:Jaw Abnormalities / Q000601:surgery*; D008334:Mandible / Q000601:surgery*; D010027:Osteotomy; D016896:Treatment Outcome; D055815:Young Adult