Patient-Specific Augmentation Rhinoplasty Using a Three-Dimensional Simulation Program and Three-Dimensional Printing

Aesthetic Surgery Journal
Yim Don ChoiEunSoo Park

Abstract

The convergence of three-dimensional (3D) simulation, tissue engineering, and 3D printing technology is creating a paradigm shift in plastic surgery. In augmentation rhinoplasty, determining the ideal material and design method has been a critical issue for many years. Thus, these technologies are expected to make important contributions to augmentation rhinoplasty. We sought to validate the feasibility of the 3D carving simulation and patient-specific implant fabrication system (3D carving system) in a clinical trial using reproducibility tests. Patient-specific implants were designed using a program developed in-house with preoperative computed tomography (CT). Negative molds of the implant were fabricated by a 3D printer and silicone was injected into these molds. Ten actual silicone implants were fabricated and compared with virtually designed implants. Seven patients underwent surgery and postoperative CT to confirm implant positioning. Virtually designed implants were produced into actual implants within 0.07 mm with a 0.17% ± 0.11% difference. The percentage within the gap was the highest at the cephalic end of the implant and reduced from the cephalic to caudal end (most cephalic point: 100%; rightmost and leftmost poin...Continue Reading

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