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oai:docta.ucm.es:20.500.14352/721832023-07-14T05:28:39Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc Rodríguez Arias, Juan Pablo author Gutiérrez Venturini, Alessandro author Pampín Martínez, Marta María author Gómez García, Elena author Muñoz Caro, Jesús Manuel author San Basilio, Maria author Martín Pérez, Mercedes author Cebrián Carretero, José Luis author 2022-06-22 (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. 2077-0383 10.3390/jcm11133591 https://hdl.handle.net/20.500.14352/72183 https://doi.org/10.3390/jcm11133591 https://www.mdpi.com/journal/jcm Microtia Ear Reconstruction with Patient-Specific 3D Models—A Segmentation Protocol