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Article

Microtia Ear Reconstruction with Patient-Specific 3D Models—A Segmentation Protocol

by
Juan Pablo Rodríguez-Arias
1,*,
Alessandro Gutiérrez Venturini
2,
Marta María Pampín Martínez
1,
Elena Gómez García
1,
Jesús Manuel Muñoz Caro
1,
Maria San Basilio
3,
Mercedes Martín Pérez
1 and
José Luis Cebrián Carretero
1
1
Oral and Maxillofacial Surgery Department, University Hospital La Paz, 28046 Madrid, Spain
2
Fundación Para la Investigación Biomédica del Hospital Universitario La Paz, Calle de Pedro Rico 6, 28029 Madrid, Spain
3
Deparment of Pediatric Surgery, Hospital Universitario La Paz, Calle de Pedro Rico 6, 28029 Madrid, Spain
*
Author to whom correspondence should be addressed.
J. Clin. Med. 2022, 11(13), 3591; https://doi.org/10.3390/jcm11133591
Submission received: 24 May 2022 / Revised: 20 June 2022 / Accepted: 21 June 2022 / Published: 22 June 2022
(This article belongs to the Section Otolaryngology)
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Abstract

(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.
Keywords: microtia; reconstruction; surface scan; 3D printing; surgical planning microtia; reconstruction; surface scan; 3D printing; surgical planning

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MDPI and ACS Style

Rodríguez-Arias, J.P.; Gutiérrez Venturini, A.; Pampín Martínez, M.M.; Gómez García, E.; Muñoz Caro, J.M.; San Basilio, M.; Martín Pérez, M.; Cebrián Carretero, J.L. Microtia Ear Reconstruction with Patient-Specific 3D Models—A Segmentation Protocol. J. Clin. Med. 2022, 11, 3591. https://doi.org/10.3390/jcm11133591

AMA Style

Rodríguez-Arias JP, Gutiérrez Venturini A, Pampín Martínez MM, Gómez García E, Muñoz Caro JM, San Basilio M, Martín Pérez M, Cebrián Carretero JL. Microtia Ear Reconstruction with Patient-Specific 3D Models—A Segmentation Protocol. Journal of Clinical Medicine. 2022; 11(13):3591. https://doi.org/10.3390/jcm11133591

Chicago/Turabian Style

Rodríguez-Arias, Juan Pablo, Alessandro Gutiérrez Venturini, Marta María Pampín Martínez, Elena Gómez García, Jesús Manuel Muñoz Caro, Maria San Basilio, Mercedes Martín Pérez, and José Luis Cebrián Carretero. 2022. "Microtia Ear Reconstruction with Patient-Specific 3D Models—A Segmentation Protocol" Journal of Clinical Medicine 11, no. 13: 3591. https://doi.org/10.3390/jcm11133591

APA Style

Rodríguez-Arias, J. P., Gutiérrez Venturini, A., Pampín Martínez, M. M., Gómez García, E., Muñoz Caro, J. M., San Basilio, M., Martín Pérez, M., & Cebrián Carretero, J. L. (2022). Microtia Ear Reconstruction with Patient-Specific 3D Models—A Segmentation Protocol. Journal of Clinical Medicine, 11(13), 3591. https://doi.org/10.3390/jcm11133591

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