RT Journal Article T1 Microtia Ear Reconstruction with Patient-Specific 3D Models—A Segmentation Protocol A1 Rodríguez Arias, Juan Pablo A1 Gutiérrez Venturini, Alessandro A1 Pampín Martínez, Marta María A1 Gómez García, Elena A1 Muñoz Caro, Jesús Manuel A1 San Basilio, Maria A1 Martín Pérez, Mercedes A1 Cebrián Carretero, José Luis AB (1) Background: In recent years, three-dimensional (3D) templates have replaced traditional two-dimensional (2D) templates as visual guides during intra-operative carving of the autogenous cartilage framework in microtia reconstruction. This study aims to introduce a protocol of the fabrication of patient-specific, 3D printed and sterilizable auricular models for autogenous auricular reconstruction. (2) Methods: The patient’s unaffected ear was captured with a high-resolution surface 3D scan (Artec Eva) and post-processed in order to obtain a clean surface model (STL format). In the next step, the ear was digitally mirrored, segmented and separated into its component auricle parts for reconstruction. It was disassembled into helix, antihelix, tragus and base and a physical model was 3D printed for each part. Following this segmentation, the cartilage was carved in the operating room, based on the models. (3) Results: This segmentation technique facilitates the modeling and carving of the scaffold, with adequate height, depth, width and thickness. This reduces both the surgical time and the amount of costal cartilage used. (4) Conclusions: This segmentation technique uses surface scanning and 3D printing to produce sterilizable and patient-specific 3D templates. PB MDPI SN 2077-0383 YR 2022 FD 2022-06-22 LK https://hdl.handle.net/20.500.14352/72183 UL https://hdl.handle.net/20.500.14352/72183 LA eng DS Docta Complutense RD 30 abr 2024