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Fabrication of 3D-Printed Implant for Two-Stage Ear Reconstruction Surgery and Its Clinical Application

 Oh Young Joo  ;  Tae Ho Kim  ;  Young Seok Kim  ;  Tai Suk Roh  ;  Eun-Ju Lee  ;  Jin-Hyung Shim  ;  Hyun Woo Cho  ;  In Sik Yun 
 YONSEI MEDICAL JOURNAL, Vol.64(4) : 291-296, 2023-04 
Journal Title
Issue Date
Congenital Microtia* / surgery ; Humans ; Plastic Surgery Procedures* ; Printing, Three-Dimensional ; Prostheses and Implants
3D printing ; Auricular reconstruction ; auricular cartilage ; scaffold
Purpose: Ear reconstruction is one of the most difficult areas in the field of reconstructive surgery. Due to limitations of the cur rent practice, a novel method of auricular reconstruction is needed. Major advancements in three-dimensional (3D) printing technique have rendered the process of ear reconstruction more favorable. Herein, we present our experience in designing and clinically using 3D implants in both 1st and 2nd stage ear reconstruction surgery. Materials and Methods: After obtaining 3D CT data from each patient, a 3D geometric ear model was created using mirroring and segmentation processes. The 3D-printed implant design resembles but does not exactly match the normal ear shape, and can be inserted in harmony with the currently used surgical technique. The 2nd stage implant was designed to minimize dead space and support the posterior ear helix. The 3D implants were finally fabricated with a 3D printing system and used in ear re construction surgery in our institute. Results: The 3D implants were manufactured for application to the currently used two-stage technique while maintaining the shape of the patient’s normal ear. The implants were successfully used for ear reconstruction surgery in microtia patients. A few months later, the 2nd stage implant was used in the 2nd stage operation. Conclusion: The authors were able to design, fabricate, and apply patient-specific 3D-printed ear implants for 1st and 2nd stage ear reconstruction surgeries. This design, combined with 3D bioprinting technique, may be a future alternative for ear reconstruction.
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1. College of Medicine (의과대학) > Dept. of Plastic and Reconstructive Surgery (성형외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Young Seok(김영석) ORCID logo https://orcid.org/0000-0002-0981-2107
Roh, Tai Suk(노태석) ORCID logo https://orcid.org/0000-0001-8681-159X
Yun, In Sik(윤인식) ORCID logo https://orcid.org/0000-0003-1103-7047
Joo, Oh Young(주오영)
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