Next Generation Orthopaedic Implants by Additive Manufacturing Using Electron Beam Melting. (21st August 2012)

• Record Type: Journal Article
• Authors: Murr, Lawrence E.; Gaytan, Sara M.; Martinez, Edwin; Medina, Frank; Wicker, Ryan B.
• Other Names: Rahaman Mohamed Academic Editor.
• Is Part Of: International journal of biomaterials. Volume 2012(2012)
• Publication Date: 2012-08-21
• Subjects: Biomedical materials -- Periodicals; Biomedical and Dental Materials; Biomedical materials; Electronic journals; Periodicals; Fulltext; Internet Resources; Periodicals; Periodicals; 610.28
• DOI: 10.1155/2012/245727
• Languages: English
• ISSNs: 1687-8787

Abstract

Abstract : This paper presents some examples of knee and hip implant components containing porous structures and fabricated in monolithic forms utilizing electron beam melting (EBM). In addition, utilizing stiffness or relative stiffness versus relative density design plots for open-cellular structures (mesh and foam components) of Ti-6Al-4V and Co-29Cr-6Mo alloy fabricated by EBM, it is demonstrated that stiffness-compatible implants can be fabricated for optimal stress shielding for bone regimes as well as bone cell ingrowth. Implications for the fabrication of patient-specific, monolithic, multifunctional orthopaedic implants using EBM are described along with microstructures and mechanical properties characteristic of both Ti-6Al-4V and Co-29Cr-6Mo alloy prototypes, including both solid and open-cellular prototypes manufactured by additive manufacturing (AM) using EBM.