title: Reconstruction of fronto-orbital and nasal defects with compound epoxied maleic acrylate/hydroxyapatite implant prefabricated with a computer design program.
abstract: The repair of fronto-orbital nasal bone defects may be a troublesome problem to plastic surgeons. This report aims to present the results of reconstruction of fronto-orbital nasal bone defects with the prefabrication of epoxied maleic acrylate/hydroxyapatite compound (EH compound) using 3-dimensional (3D) imaging data and computer-assisted manufacturing techniques, sometimes combined with autogenous bone to repair nasal defect. Helical computed tomography data were used to create a 3D model of the patient's skull. On the basis of these data, the individual shape of the implant was created by a computer-aided design/computer-aided manufacturing program. A rapid prototyping system was applied for production of the physical models. A total of 12 patients with traumatic fronto-orbital nasal defects were included in this study. The patients followed up for 1 to 24 months. The satisfactory results, such as excellent symmetry, stability, and normal fronto-orbital contours were obtained for all patients. The operating time was short without any complications. The depression of the region of fronto-orbital nasal bone defects always achieved an attractive or satisfactory prominence that was in balance and harmony with other facial features of all the patients. This method allows accurate fabrication of the implant. It improves the surgical techniques and reduces the risk of a second intervention, with improved aesthetic outcomes.
authors.affiliation: Department of Plastic and Reconstructive Surgery, The Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Chai
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Xiaofei
authors.initials: X
authors.lastname: Ma
authors.forename: Ming
authors.initials: M
authors.lastname: Zhu
authors.forename: Zheyuan
authors.initials: Z
authors.lastname: Yu
authors.forename: Xiongzheng
authors.initials: X
authors.lastname: Mu
mesh_terms: D000180:Acrylic Resins; D000293:Adolescent; D000328:Adult; D017076:Computer-Aided Design; D017886:Durapatite; D005260:Female; D005624:Frontal Bone / Q000601:surgery*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D009295:Nasal Bone / Q000601:surgery*; D009915:Orbit / Q000601:surgery*; D019736:Prostheses and Implants; D011474:Prosthesis Design; D019651:Plastic Surgery Procedures / Q000379:methods*; D055815:Young Adult
chemical_list: D000180:Acrylic Resins; D017886:Durapatite