Page 126 - IJB-9-2

International Journal of Bioprinting

RESEARCH ARTICLE
RESEARCH ARTICLE
The design and processing of a 3D-printed
high-performance biological fixation plate

Guoqing Zhang *, Junxin Li , Xiaoyu Zhou , Yongsheng Zhou , Bai Yuchao
1
1
1
2, 3
1
1 School of Mechanical and Electrical Engineering, Zhoukou Normal University, Zhoukou 466000,

Henan, P.R. China
2 School of Mechanical and Automotive Engineering, South China University of Technology,
Guangzhou 510640, Guangdong, P.R. China
3
Department of Mechanical Engineering, College of Design and Engineering, National University of
Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
Abstract
In order to generate a high-performance personalized biological fixation plate with
matching mechanical properties and biocompatibility, reverse reconstruction and
fracture reduction of a femur were performed by combining reverse and forward
approaches, and the surface was extracted according to the installation position of
the plate to complete plate modeling by shifting, thickening, and performing other
operations. Subsequently, topology optimization and three-dimensional (3D) print-
ing were performed, and the properties of the manufactured plate were probed. The
results showed that the maximum displacement of the plate was 4.13 mm near the
femoral head, the maximum stress was 5.15e MPa on both sides of the plate across
2
its entire length, and the stress concentration decreased following topology opti-
mization. The plate with optimized topology and filled with porous structure has a
good filling effect. The final mass of the H-shaped plate was 12.05 g, while that of
*Corresponding author: the B-shaped plate was 11.05 g, which dropped by 20.93% and 27.49%, respective-
Guoqing Zhang ly, compared with the original plate. The surface of the 3D-printed plate was bright
(zhangguoqing1202@sohu.com)
and new, with a clear pore structure and good lap joint. The B-shaped and H-shaped
Citation: Zhang G, Li J, Zhou X, plates were closely dovetailed with the host bone, which met the assembly require-
et al., 2023, The design and
processing of a 3D-printed high- ments. This lays a foundation for the direct application of a high-performance per-
performance biological fixation plate. sonalized biological fixation plate.
Int J Bioprint, 9(2): 658.
https://doi.org/10.18063/ijb.v9i2.658
Keywords: Selective laser melting; Bone plate; Topological optimization; Simulation
Received: July 15, 2022
Accepted: August 26, 2022 analysis; Forming quality
Published Online: December 30,
2022
Copyright: © 2022 Author(s).
This is an Open Access article 1. Introduction
distributed under the terms of the
Creative Commons Attribution Bone diseases, bone trauma, congenital malformations of the bone, and other bone-
License, permitting distribution
and reproduction in any medium, related diseases are treated with internal fixation with plates. The properties of these
[1]
provided the original work is plates are critical for successful osteosynthesis . The two factors that affect the properties
properly cited. of plates are as follows [2,3] : (1) ideal plate material should have high strength, low stiffness,
Publisher’s Note: Whioce similar elastic modulus to human bone (to avoid “stress shielding”), no toxicity or
Publishing remains neutral with rejection, and good biocompatibility; (2) in terms of structural design, there should
regard to jurisdictional claims in be fewer screw holes for fixation. Several researchers have found that using too many
published maps and institutional
affiliations. screws might cause stress concentration and damage the plate, whereas using too few

Volume 9 Issue 2 (2023) 118 https://doi.org/10.18063/ijb.v9i2.658