 This paper discusses the use of electron beam melting to create knee and hip implant components with porous structures. It also examines how these components can be designed to optimize stress shielding and bone cell growth. The paper concludes that patient-specific, monolithic, multifunctional orthopedic implants can be created using electron beam melting. This article was authored by Lawrence Ema, Sara M. Guyton, Edwin Martinez, and others.