Implant bone screw characteristics of a printed PLA-based material

Karel Dvorak

doi:10.1515/mt-2024-0261

Article

Implant bone screw characteristics of a printed PLA-based material

Karel Dvorak
Karel Dvorak, Ph.D. (1976) obtained his M.Sc. degree in aircraft operations from Czech Technical University in Prague and his Ph.D. degree in modeling and simulation in engineering education from the University of Hradec Králové. He specializes in advanced modeling methods, rapid prototyping, and material testing. He has worked as a Designer and CAx/PLM Consultant for R&D departments. He works as a teacher and metrologist in an accredited test laboratory at College of Polytechnics Jihlava.

Published/Copyright: August 28, 2024

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From the journal Materials Testing Volume 66 Issue 11

Abstract

ASTM F543 specifies the testing characteristics of bone screws. It consists of 4 phases of separate tests, 3 of which are carried out according to a standard procedure using strictly prescribed material. Testing according to this standard is part of the standardization and certification process for bone implants. The PUR 30 PCF material simulates bone for the respective test. The standardized testing results are primarily used to compare the characteristics of the implants tested. At the same time, the information obtained is essential for the verification of real bone screw implantation procedures. In addition to the design of implants and fixation elements, the purpose of using the results of testing using a surrogate material may be, for example, to teach implantation procedures or to train and simulate real implantation procedures, especially in complicated cases. The advantage of using bodies made of poly lactic acid (PLA) material, prepared by additive technology, lies mainly in the possibility of realizing free shapes corresponding to the shapes of natural bone. The present content introduces the problem of defining the structure of test bodies made of additively prepared PLA material and presents the results of comparative testing with PUR 30 PCF material.

Keywords: 3D model; additive manufacturing; bone; extraction; implantation; poly lactic acid

Corresponding author: Karel Dvorak, Technical Studies, College of Polytechnics Jihlava, Tolsteho 16, Jihlava, 586 01, Czech Republic, E-mail: karel.dvorak@vspj.cz

Funding source: College of Polytechnics Jihlava

Award Identifier / Grant number: Grant no. INT/2023/0007 ”Research on dilation characteristics of 3D DMLS printed products”

About the author

Karel Dvorak

Karel Dvorak, Ph.D. (1976) obtained his M.Sc. degree in aircraft operations from Czech Technical University in Prague and his Ph.D. degree in modeling and simulation in engineering education from the University of Hradec Králové. He specializes in advanced modeling methods, rapid prototyping, and material testing. He has worked as a Designer and CAx/PLM Consultant for R&D departments. He works as a teacher and metrologist in an accredited test laboratory at College of Polytechnics Jihlava.

Acknowledgment

This research was supported by the College of Polytechnics Jihlava, under Grant no. INT/2023/0007 “Research on dilation characteristics of 3D DMLS printed products.”

Research ethics: Not applicable.
Author contributions: The author has accepted responsibility for the entire content of this manuscript and approved its submission
Competing interests: The author states no conflict of interest.
Research funding: College of Polytechnics Jihlava, Grant no. INT/2023/0007 ”Research on dilation characteristics of 3D DMLS printed products”.
Data availability: The raw data can be obtained on request from the corresponding author.

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Published Online: 2024-08-28

Published in Print: 2024-11-26

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Articles in the same Issue

https://doi.org/10.1515/mt-2024-0261

Keywords for this article

3D model; additive manufacturing; bone; extraction; implantation; poly lactic acid