Mandibular basal osteotomy: new designs and fixation techniques.
J Oral Maxillofac Surg
; 69(3): 786-97, 2011 Mar.
Article
em En
| MEDLINE
| ID: mdl-21353935
PURPOSE: This study evaluated the functional and cosmetic results of mandibular basal osteotomy, introducing new indications and fixation alternatives. MATERIALS AND METHODS: Ten patients 19 to 46 years old (mean, 32.3 years) were treated by orthognathic surgery, including mandibular basal osteotomy for correction of deficiency, excess, or asymmetry of the inferior mandibular border. An intraoral approach based on 3 incisions to the anterior and posterior mandible was used to maintain and protect soft tissues surrounding the mental nerve. After marking the bone inferior to the nerve, a reciprocal saw completed the osteotomy design and individual rigid fixation according to movement was executed. All patients were 3-dimensionally treated and the evaluation included clinical, radiographic, and photographic analysis pre and postoperatively; all patients were followed for a minimum of 12 months. RESULTS: All patients showed excellent functional and cosmetic results. Nine patients (9/10) were treated for advancement of the inferior border (mean, 6.89 ± 2.57 mm; P < .05). One of them underwent simultaneous inferior (3 mm) and lateral (4 mm) repositioning and 3 had combined lateral movement (mean, 3.5 ± 0.58 mm; P < .05). One patient (1/10) required posterior (4 mm) and inferior (5 mm) repositioning of the basal segment. CONCLUSIONS: Mandibular basal osteotomy is an innovative technique that is strongly predictable for correction of deficiency, excess, and/or asymmetry of the inferior mandibular border, decreasing morbidity and many other complications of traditional bone grafts and alloplastic techniques.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças Mandibulares
/
Osteotomia de Le Fort
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Técnicas de Fixação da Arcada Osseodentária
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Assimetria Facial
/
Procedimentos Cirúrgicos Ortognáticos
/
Mandíbula
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adult
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Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Oral Maxillofac Surg
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Venezuela
País de publicação:
Estados Unidos