Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

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 publication

DOI

10.1063/5.0060049

Type

Conference paper

Publication Date

10/08/2021

Volume

2382