title: [Double-step distraction osteogenesis in the reconstruction of unilateral mandibular segmental defects after tumor resection].
abstract: OBJECTIVE
  To investigate the application of double-step distraction osteogenesis in the reconstruction of mandibular segmental defects after tumor resection.
  
  
  METHODS
  From January 2002 to December 2006, six cases of post-tumor unilateral mandibular segmental defects were reconstructed using distraction osteogenesis. The mandibular body was lengthened first, following by mandibular ramus distraction.
  
  
  RESULTS
  No infection or other complication was observed. The maximal distraction length reached 55 millimeter in the mandibular body, and 42 millimeter in the mandibular ramus. The average distraction length was 52 millimeter in the mandibular body, and 34 millimeter in the mandibular ramus. Both the aesthetic and functional result was excellent in all cases.
  
  
  CONCLUSIONS
  Double-step distraction osteogenesis is effective and easily performed in the reconstruction of unilateral mandibular segmental defects with less morbidities and complications. There is no need for donor site. However, the treatment period is relatively long with three staged operations.
authors: Department of Oral and Maxillofacial Surgery, 2nd Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou 310009, China.
authors: Jun
authors: J
authors: Chen
authors: Fei-Yun
authors: FY
authors: Ping
authors: Jun-Lie
authors: JL
authors: Yan
authors: Feng-Guo
authors: FG
authors: Yan
authors: Shuang-Xia
authors: SX
authors: Pan
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008339:Mandibular Neoplasms / Q000601:surgery*; D008875:Middle Aged; D019857:Osteogenesis, Distraction / Q000379:methods*; D019651:Plastic Surgery Procedures / Q000379:methods*; D055815:Young Adult