Dataset Information

Mechanical performance of porous biomimetic intervertebral body fusion devices: an in vitro biomechanical study.

ABSTRACT:

Background

Degenerative disc disease is one of the most common ailments severely affecting the quality of life in elderly population. Cervical intervertebral body fusion devices are utilized to provide stability after surgical intervention for cervical pathology. In this study, we design a biomimetic porous spinal cage, and perform mechanical simulations to study its performances following American Society for Testing and Materials International (ASTM) standards before manufacturing to improve design process and decrease cost and consumption of material.

Methods

The biomimetic porous Ti-6Al-4 V interbody fusion devices were manufactured by selective laser melting (laser powder bed fusion: LPBF in ISO/ASTM 52900 standard) and subsequently post-processed by using hot isostatic pressing (HIP). Chemical composition, microstructure and the surface morphology were studied. Finite element analysis and in vitro biomechanical test were performed.

Findings

The post heat treatment can optimize its mechanical properties, as the stiffness of the cage decreases to reduce the stress shielding effect between two instrumented bodies. After the HIP treatment, the ductility and the fatigue performance are substantially improved. The use of HIP post-processing can be a necessity to improve the physical properties of customized additive manufacturing processed implants.

Interpretation

In conclusion, we have successfully designed a biomimetic porous intervertebral device. HIP post-treatment can improve the bulk material properties, optimize the device with reduced stiffness, decreased stress shielding effect, while still provide appropriate space for bone growth.

Clinical significance

The biomechanical performance of 3-D printed biomimetic porous intervertebral device can be optimized. The ductility and the fatigue performance were substantially improved, the simultaneously decreased stiffness reduces the stress shielding effect between two instrumented bodies; while the biomimetic porous structures provide appropriate space for bone growth, which is important in the patients with osteoporosis.

SUBMITTER: Tsuang FY

PROVIDER: S-EPMC9885572 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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Publications

Mechanical performance of porous biomimetic intervertebral body fusion devices: an in vitro biomechanical study.

Tsuang Fon-Yih FY Li Ming-Jun MJ Chu Po-Han PH Tsou Nien-Ti NT Sun Jui-Sheng JS

Journal of orthopaedic surgery and research 20230130 1

<h4>Background</h4>Degenerative disc disease is one of the most common ailments severely affecting the quality of life in elderly population. Cervical intervertebral body fusion devices are utilized to provide stability after surgical intervention for cervical pathology. In this study, we design a biomimetic porous spinal cage, and perform mechanical simulations to study its performances following American Society for Testing and Materials International (ASTM) standards before manufacturing to i ...[more]

PMID: 36717827

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Dataset Information

Mechanical performance of porous biomimetic intervertebral body fusion devices: an in vitro biomechanical study.

Background

Methods

Findings

Interpretation

Clinical significance

Publications

Mechanical performance of porous biomimetic intervertebral body fusion devices: an in vitro biomechanical study.

Similar Datasets

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