title: [Application of three-dimensional virtual technology in mandibular defects reconstruction with free fibular flap].
abstract: OBJECTIVE
  To present a method for mandibular defects reconstruction with free fibular flap by three-dimensional virtual technology.
  
  
  METHODS
  In 11 patients (8 with ameloblastomas, 1 with ossifying fibroma, 2 with carcinoma of the mandibular gingiva ), three-dimensional virtual technology was simulated with software. The osteotomies were translated into rapid prototyping guides. The solid model of the mandible and the surgical guides were the same as the full size and the shape, and made by using rapid prototyping machine. During operation, the bridging plate could be pre-bended on the repaired mandibular model. One group resected the diseased mandibular according to the model of the osteotomy which was planned before operation, the other group used auxiliary guide for accurate osteotomy of the fibula bone with contact pedicle. The fibular segments were reshaped and fixed with prefabricated titanium plate, and transplanted into the defect for vascular anastomosis.
  
  
  RESULTS
  All the bone flaps and osteocutaneous flaps survived. During operation, the fibula flap could be cut in appropriate length. Cutting, remodeling and reposition of the fibula could be accelerated by surgery guides. Postoperative follow-up was 1 to 24 months. Imaging examination showed that the shape of mandible and mandibular angle were good, and the temporomandibular joint and occlusion returned to normal.
  
  
  CONCLUSIONS
  Three-dimensional virtual technology is useful in reconstruction of mandibular defect with vascularized fibular flap.
authors.affiliation: Department of Stomatology, Fuyang People's Hospital. Fuyang 236004, Anhui Province; China.E-mail :wljfyyz@sohu.com.
authors.forename: Xu-bing
authors.initials: XB
authors.lastname: Chen
authors.forename: Zhao-gang
authors.initials: ZG
authors.lastname: Liu
authors.forename: Jian-bing
authors.initials: JB
authors.lastname: Yuan
authors.forename: Hong-wei
authors.initials: HW
authors.lastname: Tian
mesh_terms: D000564:Ameloblastoma; D001860:Bone Plates; D016025:Bone Transplantation; D005360:Fibula; D058752:Free Tissue Flaps; D006801:Humans; D021621:Imaging, Three-Dimensional; D008334:Mandible / Q000002:abnormalities*; D063175:Mandibular Reconstruction / Q000379:methods*; D010027:Osteotomy; D012984:Software