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Piezo High Accuracy Surgical Osteal Removal PHASOR: A Technique for Improved Cranial Window Surgery in Mice

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Computer guided maxillo-malar piezoelectric osteotomies for midface augmentation.

Andrea Lazzarotto¹, Alessandro Tel¹, Serena Brontoladi²

¹Maxillofacial Surgery Department, Academic Hospital of Udine, Department of Medical Science, University of Udine, P.le Kolbe 4, 33100, Udine, Italy.

Journal of Plastic, Reconstructive & Aesthetic Surgery : JPRAS

|December 13, 2022

Summary

Maxillo-malar osteotomies, enhanced by modern technology like virtual surgical planning and navigation, effectively augment the midface in orthognathic surgery. This technique offers a safe and accurate solution for severe midfacial hypoplasia, restoring both function and aesthetics.

Keywords:

Computed-guided surgery Maxillo-malar osteotomies Midface augmentation Orthognathic surgery Piezosurgery Virtual surgical planning

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Area of Science:

Orthognathic Surgery
Facial Reconstruction
Piezoelectric Surgery

Background:

Maxillo-malar osteotomies, though less discussed recently, offer significant benefits for midface augmentation in orthognathic surgery.
This study aims to re-evaluate and reintroduce maxillo-malar osteotomies using contemporary surgical technologies.

Purpose of the Study:

To demonstrate the efficacy of maxillo-malar osteotomies for increasing midfacial volume.
To integrate advanced technologies like piezosurgery, virtual surgical planning, and navigation into the maxillo-malar osteotomy procedure.

Main Methods:

Eighteen patients with midface hypoplasia underwent orthognathic surgery utilizing maxillo-malar osteotomies.
The workflow included virtual surgical planning, navigation-assisted piezoelectric osteotomies, and computerized morphometric analysis.

Main Results:

Virtual surgical plans were accurately replicated in the operating room, confirmed by 3D analysis.
No permanent complications were observed during long-term follow-up.
Soft tissue changes correlated well with skeletal movements across all patients.

Conclusions:

Virtual surgical planning, navigation, and piezosurgery are crucial for safe and accurate maxillo-malar osteotomies.
These osteotomies should be considered for surgeons treating severe midfacial hypoplasia.
The procedure effectively restores both facial functionality and aesthetics.