Multi-layered prosthetic element

A tibial prosthesis comprising;

• a multi-layered prosthetic element comprising
• a central body of a substantially truncated conical shape and having a through axial cavity open at both ends which gives the central body a ring-shaped cross-section,
• said central body comprising
• an outer portion, made of trabecular metal material,
• an inner portion, made of trabecular metal material, and
• an intermediate portion made of metal material without significant porosity;
• the outer portion and the inner portion being integrally connected to the intermediate portion,
• said intermediate portion configured to mechanically resist to stresses transmitted to the inner portion on one side and to the outer portion on the other side,
• a stem suitable for coupling to a tibial part of the prosthesis, said tibial part comprising a tibial plate;
• said stem configured to be received in the through axial cavity in an offset position with respect to the midpoint of the focal axis of the central body.