Open Access

ARTICLE

Construction of microstructure and nutrient transport properties of tibial segmental implant prosthesis

Xiangzhe Zhang¹, Jizhe Hai¹, Chunlong Shan², Xuehai Ma³

1 College of Mechanical Engineering, Xinjiang University, Urumqi 830046, Xinjiang Uygur Autonomous Region, China
2 The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
3 Key Laboratory of Mental Development and Learning Science, Xinjiang Normal University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China

* Corresponding Authors: Xiangzhe Zhang (), Jizhe Hai ()

Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería 2024, 40(2), 1-6. https://doi.org/10.23967/j.rimni.2024.05.014

Received 17 May 2024; Accepted 25 May 2024; Issue published 14 June 2024

Abstract

Segmental tibial bone defects caused by bone tumors, open fractures, and non-union of large bone segments are one of the challenges in orthopedic diseases. In existing research on load-bearing implants, it has been found that stress mismatch at the bone/implant interface leading to implant loosening and biological instability due to limited depth of bone ingrowth are key obstacles to the development of tibial implants. Therefore,In this study, the mechanical properties and internal fluid properties of three existing bone scaffold microstructures were investigated by finite element analysis.Based on the requirements of tibial segmental bone defect scaffolds, a composite scaffold with a GDP pore structure is prepared. The stress transmission mechanism of its microstructure model and the influence of internal scaffold microstructure on the transport of nutrients are studied. The newly proposed GDP pore structure is suitable for segmental bone defects similar to the tibial diaphysis.

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Keywords

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