JZUS - Journal of Zhejiang University SCIENCE

Journal of Zhejiang University SCIENCE A

Accepted manuscript available online (unedited version)

Computational analysis of Ti-6Al-4V thoracic implants with a spring-like geometry for anterior chest wall reconstruction

Author(s): Alejandro BOLAÑOS¹, Alejandro YÁNEZ¹, Alberto CUADRADO¹, Maria Paula FIORUCCI¹, Belinda MENTADO^2, ³
Affiliation(s): ¹Department of Mechanical Engineering, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain; more
Corresponding email(s): alejandro.yanez@ulpgc.es
Key Words: Chest wall reconstruction, Thoracic implant, Spring-like geometry, Semi-ring-rib model, Computational analysis.

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Alejandro BOLAÑOS¹, Alejandro YÁNEZ¹, Alberto CUADRADO¹, Maria Paula FIORUCCI¹, Belinda MENTADO^2,³. Computational analysis of Ti-6Al-4V thoracic implants with a spring-like geometry for anterior chest wall reconstruction[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2400431

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author="Alejandro BOLAÑOS¹, Alejandro YÁNEZ¹, Alberto CUADRADO¹, Maria Paula FIORUCCI¹, Belinda MENTADO^2,³",
journal="Journal of Zhejiang University Science A",
year="in press",
publisher="Zhejiang University Press & Springer",
doi="https://doi.org/10.1631/jzus.A2400431"
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%T Computational analysis of Ti-6Al-4V thoracic implants with a spring-like geometry for anterior chest wall reconstruction
%A Alejandro BOLAÑOS¹
%A Alejandro YÁNEZ¹
%A Alberto CUADRADO¹
%A Maria Paula FIORUCCI¹
%A Belinda MENTADO^2
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A1 - Alejandro BOLAÑOS¹
A1 - Alejandro YÁNEZ¹
A1 - Alberto CUADRADO¹
A1 - Maria Paula FIORUCCI¹
A1 - Belinda MENTADO^{2
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Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: Thoracic reconstructions are essential surgical techniques used to replace severely damaged tissues and restore protection to internal organs. In recent years, advancements in additive manufacturing have enabled the production of thoracic implants with complex geometries, offering more versatile performance. In this study, we investigated a design based on a spring-like geometry manufactured by laser powder bed fusion (LPBF), as proposed in earlier research. The biomechanical behavior of this design was analyzed using various isolated semi-ring-rib models at different levels of the rib cage. This approach enabled a comprehensive examination, leading to the proposal of several implant configurations that were incorporated into a 3D rib cage model with chest wall defects, to simulate different chest wall reconstruction scenarios. The results revealed that the implant design was too rigid for the second rib level, which therefore was excluded from the proposed implant configurations. In chest wall reconstruction simulations, the maximum stresses observed in all prostheses did not exceed 38% of the implant material's yield stress in the most unfavorable case. Additionally, all the implants showed flexibility compatible with the physiological movements of the human thorax.

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