Hybrid fixation features for three-dimensional porous structures for bone ingrowth and methods for producing

A method for implanting an orthopaedic prosthetic component, the method comprising the steps of:

• inserting a fixation peg into a bone of a human body to facilitate bone ingrowth into a porous three-dimensional structure of the fixation peg, wherein the porous three-dimensional structure has an outer surface boundary,
• wherein the fixation peg includes a plurality of plates attached to the porous three-dimensional structure at the outer surface boundary, each plate elongate along a proximal-distal direction and including a body having an outer wall that faces away from the porous three-dimensional structure, the outer wall defining a channel that has an open distal end that faces distally to facilitate insertion of the fixation peg into the bone during the inserting step,
• wherein each plate of the plurality of plates includes a tapered body such that the channel is a tapered channel, wherein the tapered body has an outer wall that faces away from the porous three-dimensional structure and is devoid of any openings,
• wherein the outer wall of each plate of the plurality of plates includes a concave surface that defines the tapered channel, and
• wherein the tapered body of each plate of the plurality of plates extends in the proximal-distal direction along the porous three-dimensional structure, the tapered body of each plate of the plurality of plates extends from a proximal end to a distal end, and the tapered body of each plate of the plurality of plates has a first width at the proximal end and a second width greater than the first width between the proximal end and the distal end.