Computer planning for distraction osteogenesis.
Plast Reconstr Surg
; 105(3): 873-82, 2000 Mar.
Article
em En
| MEDLINE
| ID: mdl-10724245
ABSTRACT
Distraction osteogenesis of the mandible has found an application in the treatment of patients with a variety of different mandibular deformities. Compared with the relatively simple unidirectional distraction of long bones as described by Ilizarov, the three-dimensional distraction of the mandible is extremely complex. Whereas experience with orthognathic surgery clearly demonstrates that careful presurgical planning is necessary to achieve predictable outcomes, there are few reported methods for the planning of mandibular distraction. The authors have developed a method for planning distraction osteogenesis of the mandible that involves the use of three-dimensional modeling and animation to simulate distraction osteogenesis in virtual reality. The first step in the authors' treatment planning process is to obtain a three-dimensional computerized scan of the facial skeleton. From this scan, a three-dimensional wire-mesh model is built using animation software. With the same software, a virtual distractor is built and installed on the wire-mesh model. The osteotomies and the distraction process are then simulated. Finally, a recipe for sequencing the linear and angular changes of the distractor is calculated. The authors have used this planning process in seven patients (age range, 4 to 10 years) four with unilateral mandibular deformities and three with bilateral. The planning process has yielded predictable and reproducible results.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Simulação por Computador
/
Processamento de Imagem Assistida por Computador
/
Osteogênese por Distração
/
Ossos Faciais
/
Mandíbula
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Child
/
Child, preschool
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Plast Reconstr Surg
Ano de publicação:
2000
Tipo de documento:
Article
País de afiliação:
Estados Unidos