Prosthesis element with recesses proceeds under the external surface.

A prosthetic component (1) for orthopedic or traumatologic surgery, meant to be inserted in a bone part, in which below a layer (11) which has an outer surface (Se) meant to make contact with a bone part there are multiple recesses (2i), which are connected to the outside through openings (3i) which pass through the layer (11) provided with the outer surface.