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Updated: Apr 18, 2026

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Treatment of Facial Deformities using 3D Planning and Printing of Patient-Specific Implants
Published on: May 23, 2020
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3D surgical planning in patients affected by lipodystrophy
J A Pérez-Carrasco1, B Acha1, T Gómez-Cia2
1University of Seville, Signal and Communications Department, Camino de los Descubrimientos, s/n., 41092, Spain.
Summary
This study introduces a virtual reality tool for facial lipodystrophy correction (FLIC). It accurately estimates injectable volumes, reducing the need for surgical reinterventions and improving patient outcomes.
Area of Science:
- Medical Engineering
- Plastic Surgery
- Virtual Reality Applications
Background:
- Lipodystrophy necessitates reconstructive surgery using injectable materials.
- Current surgical planning for lipodystrophy has limitations, leading to frequent reinterventions (approx. 15%).
- Accurate volume estimation is crucial for successful lipodystrophy correction.
Purpose of the Study:
- To develop and validate a virtual reality-based application for surgical planning of facial lipodystrophy correction (FLIC).
- To provide surgeons with an efficient tool for estimating injectable volumes preoperatively.
- To reduce reintervention rates by improving surgical planning accuracy.
Main Methods:
- Development of a virtual reality application (FLIC) for interactive surgical planning.
- Surgeon selects points to define the operative surface area.
- FLIC automatically computes estimated reconstructed surface and required implant volumes.
Main Results:
- FLIC software was used to estimate volumes for facial lipodystrophy correction.
- Estimated volumes were compared with actual injected volumes using ZBrush and surgical data.
- High intraclass correlation coefficients (ICCs > 0.97) validated FLIC's accuracy.
Conclusions:
- The FLIC tool accurately estimates injectable volumes for facial lipodystrophy correction.
- This virtual reality application shows significant potential for improving surgical planning and reducing reinterventions.
- FLIC offers a validated, efficient solution for optimizing lipodystrophy correction procedures.

