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

Transcript of OSTEOTOMIA LEFORT I - Semantic Scholar · 2018-10-16 · Pravin K. Patel,Michael V. Novia, The...

Page 1: OSTEOTOMIA LEFORT I - Semantic Scholar · 2018-10-16 · Pravin K. Patel,Michael V. Novia, The Surgical Tools: The LeFort I, Bilateral Sagittal Split Osteotomy of the Mandible, and

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

Peterson's principles of oral and maxillofacial surgery second edition

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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

Peterson's principles of oral and maxillofacial surgery second edition

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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

Peterson's principles of oral and maxillofacial surgery second edition

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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