OSTEOTOMIA LEFORT I - Semantic Scholar · 2018-10-16 · Pravin K. Patel,Michael V. Novia, The...
Transcript of OSTEOTOMIA LEFORT I - Semantic Scholar · 2018-10-16 · Pravin K. Patel,Michael V. Novia, The...
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PABLO EMILIO CORREA
CIRUJANO MAXILOFACIAL
OSTEOTOMIA LEFORT I
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ANATOMÍA
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HISTORIA
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Bernhard Rudolf Konrad von Langenbeck
1859
Eliminación Pólipos
nasofaríngeos
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David Williams Cheever
1867
Tratamiento de la obstrucción nasal completa y epistaxis recurrentes como consecuencia de tumores en nasofaringe
The origin of the Le Fort 1 maxillary osteotomy: Cheever' s operation Frank Moloney, MD, DDS; and Philip Worthington, MD, DDS, Seattle J ORAL SURGERY VOL 39, OCTOBER 1981
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René Le Fort
1901
Etude expérimental sur les fractures de
la machoire supérieure
Peterson's principles of oral and maxillofacial surgery second edition
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Martin Wassmund
1927
Describió por primera vez la osteotomía Le Fort I para la corrección de tercio medio
facial
. Ann Chir Plast Esthet 1994 Aug; 39 (4) :431-41. [¿Todavía hay indicaciones para la osteotomía de Wassmund?].
Boutault F , Paoli JR , Gasquet F .
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Georg Axhausen
1934
Movilización total del maxilar con la inmediata reposición, separación
de la unión pterigomaxilar
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Karl Albert Max Schuchardt
1942
Osteotomía Le Fort I en 2 estadios:
Separación pterygomaxilar
Tracción externa
utilizada para llevar hacia adelante el maxilar
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Hugo Lorenz Obwegeser
1965
Sugirió la completa
movilización del maxilar sin
tensión
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William H. Bell
1977
Nuevas técnicas para asegurar
aporte sanguíneo y evitar posibles complicaciones
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Estudio Pre quirúrgico
• Examen clínico
• Estudio radiográfico
– Panorámica
– Cefálica
• Cefalometría - Predicciones
• Modelos Articulador – Predicción
• Férula Quirúrgica
• Estudio Fotográfico
• Exámenes pre quirúrgicos
• Valoración pre anestésica
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OSTEOTOMÍA LE FORT
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Osteotomía Le Fort I
Movimientos en los 3 planos del
espacio
Posición del labio superior
Punta de la nariz
Base alar
Ángulo de columnela labial
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Osteotomía Le Fort I
Pravin K. Patel,Michael V. Novia, The Surgical Tools: The LeFort I,Bilateral Sagittal Split Osteotomy of the Mandible, and the Osseous Genioplasty. Clin Plastic Surg 34 (2007) 447–475
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Pravin K. Patel,Michael V. Novia, The Surgical Tools: The LeFort I, Bilateral Sagittal Split Osteotomy of the Mandible, and the Osseous Genioplasty. Clin Plastic Surg 34 (2007) 447–475
Esquemas de Osteotomías
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Osteotomía Le Fort I
Pravin K. Patel,Michael V. Novia, The Surgical Tools: The LeFort I,Bilateral Sagittal Split Osteotomy of the Mandible, and the Osseous Genioplasty. Clin Plastic Surg 34 (2007) 447–475
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Variación
Peterson's principles of oral and maxillofacial surgery second edition
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Variación
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Osteotomía Le Fort Alta
Pravin K. Patel,Michael V. Novia, The Surgical Tools: The LeFort I,Bilateral Sagittal Split Osteotomy of the Mandible, and the Osseous Genioplasty. Clin Plastic Surg 34 (2007) 447–475
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Interposición de Injerto
G.R. Hoffmana. The skeletal stability of one-piece Le Fort 1 osteotomy to advance the maxilla Part 2. The influence of uncontrollable clinical variablesBritish Journal of Oral and
Maxillofacial Surgery (2004) 42, 226—230
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TÉCNICA QUIRÚRGICA
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ANESTESIA GENERAL INFILTRACIÓN
Pravin K. Patel. The Surgical Tools: The LeFort I, Bilateral Sagittal Split Osteotomy of the Mandible, and the Osseous Genioplasty. Clin Plastic Surg 34 (2007) 447–475
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INCISIÓN
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DISECCIÓN
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TRAZADO DE CORTE
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CORTE - Sierra
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CORTE - Cincel
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DOWN FRACTURE
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DOWN FRACTURE
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Pravin K. Patel. The Surgical Tools: The LeFort I, Bilateral Sagittal Split Osteotomy of the Mandible, and the Osseous Genioplasty. Clin Plastic Surg 34 (2007) 447–475
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FIJACIÓN
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Cincha Alar
Pravin K. Patel,Michael V. Novia, The Surgical Tools: The LeFort I, Bilateral Sagittal Split Osteotomy of the Mandible, and the sseous Genioplasty. Clin Plastic Surg 34 (2007) 447–475
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Use of stereolithographic cutting guides in corrective (wedge) Lefort I osteotomy. R. Seeberger et al. / British Journal of Oral and Maxillofacial
Surgery 49 (2011) e20–e21
SimPlant ®
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COMPLICACIONES
David E. Morris. Pitfalls in Orthognathic Surgery: Avoidance and Management of ComplicationsClin Plastic Surg 34 (2007) e17–e29
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EXTRAORALES
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SEMIRIGIDA
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SUSPENSION ESQUELETICA
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INTERDENTAL
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INTERMAXILAR
(tornillo)
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INTER
MA
XILA
R
Koichiro Ueki The Use of an Intermaxillary Fixation Screw for Mandibular Setback Surgery. J Oral Maxillofac Surg 65:1562-1568, 2007
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ALAMBRADO
INTEROSEO OSTEOSÍNTESIS
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RIGIDA
PLACAS DE TITANIO REABSORBIBLES TORNILLOS
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• Aceptado universalmente
• Familiarizado técnica
• Maleable
• Pequeño
• Resistente
Crecimiento niños????
Migración tornillo
Maleable
Palpar
Destellos RADIOGRAFÍA
Alergénicos ??
Retiro?
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Tercio superior
•0.6 espesor
•Long 2-10mm
•titanio
PLACAS DE TITANIO
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Tercio medio
•0.6 espesor
•Long 2-10mm
•titanio
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Diámetro 1.7 y 2.0 mm
Longitud 3-9, 11, 13, 15 mm
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Tercio inferior y
medio
•0.6 espesor
•Long 2-10mm
•titanio
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Diámetro 2.0 y 2.3 mm
Longitud 4-9, 11, 13, 15, 17, 19 mm
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PLACAS DESLIZANTES
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2 PLACAS DESLIZANTES
Espesor 0.7 mm
MODUS® OSS 2.0
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TERCIO INFERIOR
ESPESOR 1.6mm
PLACAS DE COMPRESION
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Espesor 1.6 mm
Perfil 1.5 mm
Zona Deslizante
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COMPRESION DINAMICA
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Baker S. Concepts and Techniques of Rigid Fixation. Fonseca RI y Col Oral and Maxilofacial Trauma. 1997
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• No infección
• No corrosión
• No 2° cirugía
• No palpación
• No destellos
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Costo
No re-esterilización
Fracturas material
Estudios
Reabsorción completa?
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TIPOS
• Polidioxanona (PDO)
• Poligliconato
• Ac Poliglicolico (PGA)
• Ac Polilactico (PLLA)
• Copolimero PGA-PLLA
(Lactosorb)
Turvey T. The use of self-Reinforced Biodegradable Bone Plates ans Screws in Orthognatic Surgery. J Oral Maxillofac Surg 60: 59-65, 2002
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AC POLIGLICOLICO (PGA)
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• Ac Polilactico (PLLA)
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COPOLIMERO PGA - PLLA
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Nureddin Ashammakhi. Successful Use of Biosorb Osteofixation Devices in 165 Cranial and Maxillofacial Cases: A multicenter Report. The Journal Of Craniofacial Surgery / Volume 15, Number 4 July 2004
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Barry L. use a resorbable plates and screws in pediatric facial fractures. J Oral Maxillofacial Surg 63: 385-391, 2005
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GRACIAS