Abstract: The present invention relates to an endoprosthesis for a shoulder joint having a stem member (10), extending axially along a first axis (100), with a distal end piece (11) insertable into the humerus of a patient and a proximal end piece (12), a stem head (20) being provided on the proximal end piece (12).

Abstract: A glenoid prosthesis includes a bearing, the lateral side of which defines a concave bearing surface, and a carrier shell, the medial side of which comprises anchoring elements, wherein the medial side is generally flat. The prosthesis may be implanted in an anterior-posterior (A-P) by forming bores in the scapula in the A-P direction, wherein the anchoring elements extend into the bores. The scapula may be proceed to have a generally flat surface to correspond with the flat surface at the medial side of the prosthesis.