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"Modified Oblique Le Fort III Osteotomy" New Concepts.

J M García Y Sánchez¹, J Romero Flores¹, C L Gómez Rodríguez¹

¹Maxillofacial Surgery Service, Specialty Hospital, National Medical Center XXI Century, IMSS, Avenida Cuahtemoc, #330, Colonia Doctores, Mexico, Distrito Federal Mexico.

Journal of Maxillofacial and Oral Surgery

|March 14, 2017

Summary

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Surgical Guides for Modified Oblique Le Fort III Osteotomy.

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This study presents a novel surgical technique using trigonometric formulas for correcting midfacial deformities. The modified oblique Le Fort III osteotomy improves facial aesthetics and airway function with accurate, reproducible results.

Area of Science:

Maxillofacial Surgery
Orthognathic Surgery
Craniofacial Reconstruction

Background:

Midfacial deformities, including vertical excess and posteroanterior hypoplasia, present complex challenges in surgical correction.
Oblique movements of the midface complex are necessary to address these deformities, improve lip competence, and enhance malar projection.

Purpose of the Study:

To demonstrate a surgical technique for correcting midfacial deformities using a modified oblique Le Fort III osteotomy.
To introduce a mathematical formula for calculating the precise angulation required for simultaneous vertical and posteroanterior midface movement.
To provide maxillofacial surgeons with an accurate, reproducible, and affordable method for treating midfacial deformities.

Main Methods:

The study involved patients treated with Modified Oblique Le Fort III osteotomies between February 2013 and November 2014.

Keywords:

Formula Le Fort III Oblique modified Stereolithographic model Surgical guides

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Two trigonometric formulas were applied to ensure accuracy in the surgical technique.

Custom surgical guides, based on stereolithographic models and calculated angulations, were utilized during operations.

Main Results:

The application of the trigonometric formulas resulted in accurate surgical corrections.
The technique led to a noticeable enlargement of the upper airway.
Significant improvements in the esthetic outcomes for patients were observed.

Conclusions:

The Modified Oblique Le Fort III osteotomy, guided by trigonometric formulas, offers an accurate and reproducible method for correcting midfacial deformities.
This technique enhances both functional aspects, such as airway volume, and esthetic results.
The described approach expands the surgical options available for treating complex midfacial skeletal discrepancies.