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Journal of Cardiothoracic Surgery

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Open Access 01-12-2018 | Research article

Chest-wall reconstruction with a customized titanium-alloy prosthesis fabricated by 3D printing and rapid prototyping

Authors: Xiaopeng Wen, Shan Gao, Jinteng Feng, Shuo Li, Rui Gao, Guangjian Zhang

Published in: Journal of Cardiothoracic Surgery | Issue 1/2018

Abstract

Background

As 3D printing technology emerge, there is increasing demand for a more customizable implant in the repair of chest-wall bony defects. This article aims to present a custom design and fabrication method for repairing bony defects of the chest wall following tumour resection, which utilizes three-dimensional (3D) printing and rapid-prototyping technology.

Methods

A 3D model of the bony defect was generated after acquiring helical CT data. A customized prosthesis was then designed using computer-aided design (CAD) and mirroring technology, and fabricated using titanium-alloy powder. The mechanical properties of the printed prosthesis were investigated using ANSYS software.

Results

The yield strength of the titanium-alloy prosthesis was 950 ± 14 MPa (mean ± SD), and its ultimate strength was 1005 ± 26 MPa. The 3D finite element analyses revealed that the equivalent stress distribution of each prosthesis was unifrom. The symmetry and reconstruction quality contour of the repaired chest wall was satisfactory. No rejection or infection occurred during the 6-month follow-up period.

Conclusion

Chest-wall reconstruction with a customized titanium-alloy prosthesis is a reliable technique for repairing bony defects.

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Title: Chest-wall reconstruction with a customized titanium-alloy prosthesis fabricated by 3D printing and rapid prototyping
Authors: Xiaopeng Wen
Shan Gao
Jinteng Feng
Shuo Li
Rui Gao
Guangjian Zhang
Publication date: 01-12-2018
Publisher: BioMed Central
Published in: Journal of Cardiothoracic Surgery / Issue 1/2018
Electronic ISSN: 1749-8090
DOI: https://doi.org/10.1186/s13019-017-0692-3

At a glance: The STEP trials

Springer Medicine

Chest-wall reconstruction with a customized titanium-alloy prosthesis fabricated by 3D printing and rapid prototyping

Abstract

Background

Methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusion

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