Morphologic study of mandibular outer cortex osteotomy.
Plast Reconstr Surg
; 122(4): 1154-1161, 2008 Oct.
Article
em En
| MEDLINE
| ID: mdl-18827650
ABSTRACT
BACKGROUND:
The purpose of this study was to illustrate the morphologic changes of the mandible after outer cortex osteotomy.METHODS:
Ten patients had undergone mandibular outer cortex osteotomy. By using the true-up and dissection techniques based on three-dimensional spiral computed tomography, variables of effect and bone regeneration were evaluated 6 months postoperatively.RESULTS:
Concavity could be seen in the area from which the mandibular outer cortex had been removed 6 months postoperatively, especially at the external oblique line region. The average cup depth was 3.64 +/- 1.67 mm postoperatively. Diminution of bone volume was 1.7 +/- 0.5 percent for the entire mandible and 55 +/- 9 percent for the local area 6 months postoperatively. Bone regeneration could be seen in the area from which the mandibular outer cortex had been removed. Compared with immediately postoperatively, the ratio of neoformative bone was 84.6 +/- 7.3 percent 6 months postoperatively. The main region of bone regeneration was the mandibular angle.CONCLUSIONS:
Mandibular outer cortex osteotomy is an effective technique for reducing the width of the lower face. Masseter muscular movement should be restricted postoperatively to prevent hyperostosis at the angle area.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Osteotomia
/
Regeneração Óssea
/
Assimetria Facial
/
Mandíbula
Limite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Plast Reconstr Surg
Ano de publicação:
2008
Tipo de documento:
Article