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On the suitability of additively manufactured gyroid structures and their potential use as intervertebral disk replacement - a feasibility study.

作者信息

Gross Valentin, Zankovic Sergej, Rolauffs Bernd, Velten Dirk, Schmal Hagen, Seidenstuecker Michael

机构信息

G.E.R.N. Tissue Replacement, Regeneration and Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany.

Institute for Applied Biomechanics, Offenburg University, Offenburg, Germany.

出版信息

Front Bioeng Biotechnol. 2024 Jul 22;12:1432587. doi: 10.3389/fbioe.2024.1432587. eCollection 2024.

DOI:10.3389/fbioe.2024.1432587
PMID:39104631
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11298359/
Abstract

INTRODUCTION: Intervertebral disk degeneration is a growing problem in our society. The degeneration of the intervertebral disk leads to back pain and in some cases to a herniated disk. Advanced disk degeneration can be treated surgically with either a vertebral body fusion or a disk prosthesis. Vertebral body fusion is currently considered the gold standard of surgical therapy and is clearly superior to disk prosthesis based on the number of cases. The aim of this work was the 3D printing of Gyroid structures and the determination of their mechanical properties in a biomechanical feasibility study for possible use as an intervertebral disc prosthesis. MATERIAL AND METHODS: Creo Parametric 6.0.6.0 was used to create models with various Gyroid properties. These were printed with the Original Prusa i3 MK3s+. Different flexible filaments (TPU FlexHard and TPU FlexMed, extrudr, Lauterach, Austria) were used to investigate the effects of the filament on the printing results and mechanical properties of the models. Characterization was carried out by means of microscopy and tension/compression testing on the universal testing machine. RESULTS: The 3D prints with the FlexHard and FlexMid filament went without any problems. No printing errors were detected in the microscopy. The mechanical confined compression test resulted in force-deformation curves of the individual printed models. This showed that changing the Gyroid properties (increasing the wall thickness or density of the Gyroid) leads to changes in the force-deformation curves and thus to the mechanical properties. CONLCUSION: The flexible filaments used in this work showed good print quality after the printing parameters were adjusted. The mechanical properties of the discs were also promising. The parameters Gyroid volume, wall thickness of the Gyroid and the outer wall played a decisive role for both FlexMed and FlexHard. All in all, the Gyroid structured discs (Ø 50 mm) made of TPU represent a promising approach with regard to intervertebral disc replacement. We would like to continue to pursue this approach in the future.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/d7a0bbd6924c/fbioe-12-1432587-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/6412cef619bb/fbioe-12-1432587-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/0afbd5cd8fee/fbioe-12-1432587-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/ac1ba168f520/fbioe-12-1432587-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/08fedcac2bec/fbioe-12-1432587-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/ce310594c04e/fbioe-12-1432587-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/f1fe538a9792/fbioe-12-1432587-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/ff5fa2a3e443/fbioe-12-1432587-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/a01f421731b7/fbioe-12-1432587-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/d86ee64618c6/fbioe-12-1432587-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/17f6172a37f6/fbioe-12-1432587-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/d7a0bbd6924c/fbioe-12-1432587-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/6412cef619bb/fbioe-12-1432587-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/0afbd5cd8fee/fbioe-12-1432587-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/ac1ba168f520/fbioe-12-1432587-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/08fedcac2bec/fbioe-12-1432587-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/ce310594c04e/fbioe-12-1432587-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/f1fe538a9792/fbioe-12-1432587-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/ff5fa2a3e443/fbioe-12-1432587-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/a01f421731b7/fbioe-12-1432587-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/d86ee64618c6/fbioe-12-1432587-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/17f6172a37f6/fbioe-12-1432587-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b8cc/11298359/d7a0bbd6924c/fbioe-12-1432587-g011.jpg

相似文献

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On the suitability of additively manufactured gyroid structures and their potential use as intervertebral disk replacement - a feasibility study.

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[8]
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[9]
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[10]
[Anatomical background of low back pain: variability and degeneration of the lumbar spinal canal and intervertebral disc].

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本文引用的文献

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Mechanical properties of an elastically deformable cervical spine implant.

J Orthop Surg Res. 2023-8-16

[2]
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Spine J. 2023-3

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J Orthop Surg Res. 2022-2-23

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J Orthop Surg Res. 2021-11-25

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Neurosurgery. 2020-2-1

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Eur Spine J. 2020-11

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J Orthop Surg Res. 2018-12-26

[9]
Comparative Study Between M6-C and Mobi-C Cervical Artificial Disc Replacement: Biomechanical Outcomes and Comparison with Normative Data.

Orthop Surg. 2018-5

[10]
Lumbar Disk Arthroplasty for Degenerative Disk Disease: Literature Review.

World Neurosurg. 2018-1

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