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Surgical Guides for Modified Oblique Le Fort III Osteotomy
J M García Y Sánchez1, C L Gómez Rodríguez1, J Romero Flores1
1Maxillofacial Surgery Service, Specialty Hospital, National Medical Center XXI Century, IMSS, Avenida Cuahtemoc, #330, Colonia Doctores, Mexico, DF Mexico.
Journal of Maxillofacial and Oral Surgery
|June 2, 2015
Summary
Custom surgical guides simplify modified oblique Le Fort III osteotomy (MOLFIIIO). These patient-specific guides ensure stable, symmetrical cuts, reducing surgical time and the risk of vascular injury during complex facial reconstructions.
Area of Science:
- Maxillofacial Surgery
- Surgical Planning
- Biomedical Engineering
Background:
- Modified oblique Le Fort III osteotomy (MOLFIIIO) involves complex osteotomies of the orbital floor, zygoma, and pterygomaxillary fossa.
- Accurate and symmetrical execution of these osteotomies is crucial for successful reconstructive outcomes.
- Surgeons often face challenges and risks, particularly concerning the pterygomaxillary fossa, due to potential damage to vital vascular structures like the internal maxillary artery.
Purpose of the Study:
- To design and evaluate patient-specific surgical guides for MOLFIIIO.
- To achieve symmetrical bilateral orbitozygomatic osteotomies.
- To enhance surgical precision and safety, particularly in the pterygomaxillary region.
Main Methods:
- Development of patient-specific stereolithography models from CT scans.
- Fabrication of custom surgical guides using self-curing acrylic and monomer.
- Guides designed for precise osteotomies of the orbital floor, zygoma, and pterygomaxillary fossa.
Main Results:
- Custom surgical guides facilitate stable and symmetrical bilateral osteotomies.
- The use of guides significantly decreases the potential for injury to vascular structures.
- Surgical time is reduced due to the enhanced precision and predictability offered by the guides.
Conclusions:
- Patient-specific surgical guides are highly effective for MOLFIIIO.
- These guides improve surgical accuracy, reduce operative risks, and shorten procedure duration.
- The guides offer a secure and simplified approach to complex osteotomies, addressing surgeon concerns regarding the pterygomaxillary fossa.
