ITEM METADATA RECORD
Title: Additively manufactured porous tantalum implants
Authors: Wauthle, Ruben ×
Van der Stok, Johan
Amin Yavari, Saber
Van Humbeeck, Jan
Kruth, Jean-Pierre
Zadpoor, Amir Abbas
Weinans, Harrie
Mulier, Michiel
Schrooten, Jan #
Issue Date: 1-Mar-2015
Publisher: Elsevier
Series Title: Acta Biomaterialia vol:14 pages:217-225
Abstract: The medical device industry’s interest in open porous, metallic biomaterials has increased in response to additive manufacturing techniques enabling the production of complex shapes that cannot be produced with conventional techniques. Tantalum is an important metal for medical devices because of its good biocompatibility. In this study selective laser melting technology was used for the first time to manufacture highly porous pure tantalum implants with fully interconnected open pores. The architecture of the porous structure in combination with the material properties of tantalum result in mechanical properties close to those of human bone and allow for bone ingrowth. The bone regeneration performance of the porous tantalum was evaluated in vivo using an orthotopic load-bearing bone defect model in the rat femur. After 12 weeks, substantial bone ingrowth, good quality of the regenerated bone and a strong, functional implant–bone interface connection were observed. Compared to identical porous Ti–6Al–4V structures, laser-melted tantalum shows excellent osteoconductive properties, has a higher normalized fatigue strength and allows for more plastic deformation due to its high ductility. It is therefore concluded that this is a first step towards a new generation of open porous tantalum implants manufactured using selective laser melting.
ISSN: 1742-7061
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Production Engineering, Machine Design and Automation (PMA) Section
Surface and Interface Engineered Materials
Organ Systems (+)
Department of Materials Engineering - miscellaneous
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
pub07382.pdfMain article Published 2356KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members

 




All items in Lirias are protected by copyright, with all rights reserved.

© Web of science