Surgical design and fabrication of ear framework for auricular reconstruction based on digital technique
10.3760/cma.j.cn114453-20200416-00227
- VernacularTitle:数字化技术辅助设计和雕刻耳再造支架
- Author:
Panpan CUI
1
;
Shijie TANG
;
Xiaoyan MAO
;
Xiaojian LI
;
Chuanbo FENG
;
Zhenfu HU
;
Zhiqi HU
Author Information
1. 南方医科大学南方医院整形美容外科，广州 510515
- Keywords:
Congenital Microtia;
Digital planning;
Ear framework fabrication;
Costal cartilage;
Ear template
- From:
Chinese Journal of Plastic Surgery
2022;38(2):203-207
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the application of three-dimensional digital technique in customized ear framework fabrication for auricular reconstruction.Methods:From July 2018 to October 2019, the patients with microtia who underwent ear reconstruction in the Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University were enrolled. Each patient with unilateral microtia underwent auricular CT scan and preoperative analysis and ear framework design were carried out with Mimics software 18.0. The two-dimension(2D) ear films and three-dimension(3D) silicon models were produced by 1∶1 2D printing and 3D printing, respectively. Microtia reconstruction was performed according to the guide of the models, patients were followed up over a six-month period to evaluate the size, outline, height and auriculocephalic angle of the reconstructed ear. The satisfactory outcomes of the patients were scored according to a 5-point Likert scale.Results:A total of 15 patients were included in this study, including 11 males and 4 females, aged 8-27 years, with an average of 15.5 years old. All the 15 patients completed the surgical planning and ear reconstruction successfully, without major complications, such as hematomas, inflammation, skin necrosis and framework exposure. The costal cartilage frameworks were very similar to the printed 3D models in size and contour. Comparison between the two sides was made at six months postoperatively. The reconstructed ear was much the same as that of contralateral side, and all patients were satisfied with their reconstructed ear outcomes with average score of 4.4.Conclusions:With the application of digital technique for pre-surgical planning in microtia reconstruction patients, ear templates were produced from 2D to 3D, and the correction of microtia was changed from standard auricular reconstruction to personalized auricular reconstruction, with a great improvement of the precision in ear framework fabrication.
