Accuracy of 3D printed guide for orbital implant
ISSN: 1355-2546
Article publication date: 25 June 2020
Issue publication date: 20 August 2020
Abstract
Purpose
Extrinsic trauma to the orbit may cause a blowout or orbital fracture, which often requires surgery for reconstruction of the orbit and repositioning of the eyeball with an implant. Post-operative complications, however, are high with the most frequent cause of complications being a mismatch of the position and shape of the implant and fracture. These mismatches may be reduced by computed tomography (CT) based modeling and three-dimensional (3D) printed guide. Therefore, the aim of this study is to propose and evaluate a patient-specific guide to shape an orbital implant using 3D printing.
Design/methodology/approach
Using CT images of a patient, an orbital fracture can be modeled to design an implant guide for positioning and shaping of the surface and boundaries of the implant. The guide was manufactured using UV curable plastic at 0.032 mm resolution by a 3D printer. The accuracy of this method was evaluated by micro-CT scanning of the surgical guides and shaping implants.
Findings
The length and depth of the 3D model, press-compressed and decompressed implants were compared. The mean differences in length were 0.67 ± 0.38 mm, 0.63 ± 0.28 mm and 0.10 ± 0.10 mm, and the mean differences in depth were 0.64 ± 0.37 mm, 1.22 ± 0.56 mm and 0.57 ± 0.23 mm, respectively. Statistical evaluation was performed with a Bland-Altman plot.
Originality/value
This study suggests a patient-specific guide to shape an orbital implant using 3D printing and evaluate the guiding accuracy of the implant versus the planned model.
Keywords
Acknowledgements
This study was supported by a grant (grant number 2016-7020) from the Asan Institute for Life Sciences, Asan Medical Center and a grant of the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (HI18C2383).
Citation
Kwon, J., Kim, G.B., Kang, S., Byeon, Y., Sa, H.-S. and Kim, N. (2020), "Accuracy of 3D printed guide for orbital implant", Rapid Prototyping Journal, Vol. 26 No. 8, pp. 1363-1370. https://doi.org/10.1108/RPJ-07-2019-0193
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited