Geometrical evaluation of CAM-configured thermoplastic polyurethane lattices for intervertebral disc replacements

M. Hanif Nadhif, Muhammad Irsyad, A. J. Rahyussalim, Muhammad Satrio Utomo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Intervertebral discs (IVD) are prone to deformation due to higher stress that the discs can endure. Treatments for deformed IVDs include total disc replacements. Some studies concluded the superiority of spinal fusion compared to total disc replacement devices, either in the lumbar or cervical region. In current study, cuboid scaffolds made of thermoplastic polyurethane with lattice architecture were designed and configured using computer-aided manufacturing (CAM). The scaffolds were fabricated using fused filament fabrication. Process parameters were characterized and optimized to obtain scaffolds with uniform cells distribution. The struts at the top surface had average width values closer to the setpoints than the struts at the bottom surface, indicated by lower RMSE values for the struts at the top surface. However, the printing consistency in the same extrusion ratio at the bottom surface was higher than at the top surface, indicated by lower standard deviation values. Statistical analysis using standard deviation, RMSE, and Tukey's test showed that current scaffolds had non-uniform distribution between layers, which required further improvement.

Original languageEnglish
Title of host publicationProceedings of the 4th International Seminar on Metallurgy and Materials, ISMM 2020
Subtitle of host publicationAccelerating Research and Innovation on Metallurgy and Materials for Inclusive and Sustainable Industry
EditorsDeni Shidqi Khaerudini, Nono Darsono, Ahmad Rizky Rhamdani, Muhammad Satrio Utomo, Yudi Nugraha Thaha, Ika Kartika, Ahmad Ridwan Tresna Nugraha
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735441156
DOIs
Publication statusPublished - 10 Aug 2021
Event4th International Seminar on Metallurgy and Materials: Accelerating Research and Innovation on Metallurgy and Materials for Inclusive and Sustainable Industry, ISMM 2020 - Tangerang Selatan, Indonesia
Duration: 19 Nov 202020 Nov 2020

Publication series

NameAIP Conference Proceedings
Volume2382
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Seminar on Metallurgy and Materials: Accelerating Research and Innovation on Metallurgy and Materials for Inclusive and Sustainable Industry, ISMM 2020
Country/TerritoryIndonesia
CityTangerang Selatan
Period19/11/2020/11/20

Keywords

  • Computer-aided manufacturing
  • intervertebral disc
  • lattice structure
  • polyurethane

Fingerprint

Dive into the research topics of 'Geometrical evaluation of CAM-configured thermoplastic polyurethane lattices for intervertebral disc replacements'. Together they form a unique fingerprint.

Cite this