Subnasal modified Le Fort I osteotomy: indications and results
| Autor: | Jacinto Fernández Sanromán, Jorge Arenaz Bua, Alberto Costas López, Annahys López de Sánchez, Martín Fernández Ferro |
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| Rok vydání: | 2013 |
| Předmět: |
Adult
Male Nasal bridge Cephalometry medicine.medical_treatment Orthognathic surgery Dentistry Nose Le Fort I osteotomy Dentofacial Deformity Young Adult Imaging Three-Dimensional Nasal Cartilages Maxilla Humans Osteotomy Le Fort Medicine Nasal Bone Prospective Studies Orthodontics business.industry Soft tissue Maxillary Osteotomy Malocclusion Angle Class III medicine.anatomical_structure Otorhinolaryngology Female Surgery Oral Surgery Tomography X-Ray Computed business Follow-Up Studies |
| Zdroj: | International Journal of Oral and Maxillofacial Surgery. 42:1327 |
| ISSN: | 0901-5027 |
| DOI: | 10.1016/j.ijom.2013.07.540 |
| Popis: | Purpose To study the possible morphologic changes in the nose after subnasal modified Le Fort I maxillary osteotomy to correct class III dentofacial deformities in patients with considered normal nasal morphology. Material and methods Fifteen patients (7 males, 8 females) requiring maxillary advancement to treat class III dentofacial deformities were studied prospectively between January 2004 and January 2011. All the patients had an adequate projection of the nasal tip preoperatively preventing a conventional Le Fort I osteotomy. Patients received preoperatively (T1), 6 months after surgery (T2), and 12 months after the initial surgical procedure (T3) lateral cephalograms, CT-3D studies and clinical nose analysis to measure different morphologic variables including: the alar/nose base width, nasal tip protrusion and nasal bridge length using a digital sliding calliper directly on the soft-tissue surface of the face. Results Mean age was 26.2 years, range 20–36 years. A significant advancement of the maxilla was noted postoperatively (mean 7.5 mm). After surgery the different anthropometric variables of the nasal region analysed had not suffered any significant variation. No significant differences were found when comparing T2 with T3 measures. No significant complications were found. Conclusion The results indicated that maxillary advancement using a subnasal modified Le Fort I osteotomy can prevent undesirable soft tissue changes of the nose when anterior repositioning of the maxilla is indicated in patients with preoperatively normal nasal morphology. |
| Databáze: | OpenAIRE |
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