title: [Clinical application of three-dimensional reconstruction of CT images in treating mandibular angle hypertrophy].
abstract: OBJECTIVE
  To investigate the clinical directive significance of three-dimensional reconstruction of CT in treating mandibular angle hypertrophy.
  
  
  METHODS
  Between March 2009 and January 2011, 18 patients with mandibular angle hypertrophy were treated using the three-dimensional reconstruction technology of CT. All patients were female, aged 20-36 years with an average of 25 years. Eighteen patients included: 14 single mandibular angle hypertrophy, 3 mandibular angle hypertrophy with masseter hypertrophy, and 1 mandibular angle hypertrophy with bilateral asymmetry; 6 cases of ptosis of mandibular angle, 9 cases of prominent mandibular angle, and 3 cases of introversive mandibular angle. According to the types of mandibular angle hypertrophy, the surgical methods could be correctly chosen. The procedure was planned and simulated; the osteotomy line was marked and the osteotomy was measured on the workstations of three-dimensional reconstruction.
  
  
  RESULTS
  No fracture of mandible occurred in the operation. Facial nerve temporary attack occurred in 1 case and recovered at 3 months after operation. All patients were followed up 6-12 months (mean, 7.6 months). After 6 months of operation, the effectiveness was satisfactory in 15 cases, basically satisfactory in 2 cases, and unsatisfactory in 1 case (bilateral asymmetry).
  
  
  CONCLUSIONS
  Based on three-dimensional reconstruction technology of CT, surgical design performed on the model will promote the accuracy of operation. Basically symmetrical appearances can be achieved with satisfactory results.
authors.affiliation: Department of Plastic Surgery, First Affiliated Hospital ofNanchang University, Nanchang Jiangxi 330006, PR China. whcjxmc@163.com
authors.forename: Huicai
authors.initials: H
authors.lastname: Wen
authors.forename: Yuting
authors.initials: Y
authors.lastname: Yao
authors.forename: Jianhua
authors.initials: J
authors.lastname: Fu
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Honghua
authors.initials: H
authors.lastname: Yang
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D006984:Hypertrophy / Q000000981:diagnostic imaging* / Q000601:surgery; D008334:Mandible / Q000000981:diagnostic imaging* / Q000601:surgery; D010027:Osteotomy / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult