Elbow prosthesis

A prosthesis for the elbow joint, comprising:

• at least one ulnar section, comprising a stem portion extending along a substantially longitudinal axis (x-x) between a proximal end and a distal end, wherein said at least one ulnar section is provided with said stem portion tapered toward said distal end and comprises one front in use face, one rear in use face, and two right and left side in use faces;
• at least one humeral section, comprising a stem portion extending along a substantially longitudinal axis (y-y) between a proximal end and a distal end;
• at least one engagement seat between said distal end of said at least one humeral section and said proximal end of said at least one ulnar section, said at least one engagement seat being delimited by said at least one humeral section;
• and
• articulation means between said distal end of said at least one humeral section and said proximal end of said at least one ulnar section, positionable along an axis (z-z) orthogonal to said substantially longitudinal axis (y-y) of said at least one humeral section;
• wherein
• said proximal end of said at least one ulnar section is engageable in said engagement seat with its own longitudinal axis (x-x) nonorthogonal to said axis (z-z) of said articulation means, according to at least two opposed working positions, according to whether said prosthesisis is designed to be implanted in the right or in the left upper limb of a patient, and wherein said proximal end of said at least one ulnar portion, viewed laterally, presents a substantially flat and enlarged configuration with respect to the corresponding portion near said distal end, wherein at said proximal end each of said two right and left side in use faces is substantially rounded, roughly circular.