A method of forming an implant having a porous region replicated from scanned bone, the method comprising imaging bone with a high resolution digital scanner to generate a three-dimensional design model of the bone removing a three-dimensional section from the design model fabricating a porous region on a digital representation of the implant by replacing a solid portion of the digital implant with the section removed from the digital representation and using an additive manufacturing technique to create a physical implant including the fabricated porous region.