Occlusion-Fit Three-Dimensional-Printed Zygoma Repositioner

Area of Science:

• Plastic Surgery
• Oral and Maxillofacial Surgery
• Biomedical Engineering

Background:

• Reduction malarplasty aims to achieve an oval facial contour.
• Reoperation for nonunion malar complex presents significant challenges due to altered anatomy and potential asymmetry from prior surgery.
• The intraoral approach offers a limited surgical field, complicating corrective procedures.

Purpose of the Study:

• To present a case of successful treatment for a nonunion malar complex.
• To demonstrate the efficacy of computer-aided simulation and surgical guides in complex reoperative malarplasty.
• To introduce a novel three-dimensional-printed zygoma repositioner for managing nonunion malar complex.

Main Methods:

• Utilized computer-aided simulation for surgical planning.
• Employed a three-dimensional-printed zygoma repositioner for precise zygoma repositioning.
• Performed the corrective surgery via an intraoral approach, enhanced by the custom surgical guide.

Main Results:

• Achieved successful treatment outcomes for a nonunion malar complex.
• Demonstrated the feasibility and effectiveness of the three-dimensional-printed zygoma repositioner in a challenging reoperative case.
• Overcame the limitations of the traditional intraoral approach in a complex revision surgery.

Conclusions:

• Computer-aided simulation and custom surgical guides, such as the three-dimensional-printed zygoma repositioner, are effective solutions for reoperative malarplasty.
• This approach can overcome the difficulties associated with nonunion malar complex revision surgery.
• Successful outcomes are achievable even in cases with destroyed normal anatomy and pre-existing asymmetry.