Patent ID: 8852283

Claim:
A plurality of glenoidal components for a shoulder prosthesis adapted to compensate defects in parallelism between a resected surface of a glenoid cavity and an axis of a patient's spinal column, the plurality of glenoidal components comprising: a first base comprising a front surface and a rear surface with an anchoring stem comprising a longitudinal axis, the longitudinal axis of the anchoring stem arranged at a first non-perpendicular angle with respect to the front surface and at a second non-perpendicular angle with respect to the rear surface, wherein the first non-perpendicular angle is different from the second non-perpendicular angle; a second base comprising a front surface and a rear surface with an anchoring stem comprising a longitudinal axis, the longitudinal axis of the anchoring stem arranged at a third non-perpendicular angle with respect to the front surface and at a fourth non-perpendicular angle with respect to the rear surface, wherein the third non-perpendicular angle is different from the fourth non-perpendicular angle; and a glenoid portion comprising a convex articular surface and a rear surface, the convex articular surface centered on an axis of symmetry, wherein the axis of symmetry is non-coincident with the longitudinal axis of the anchoring stem when the glenoid portion is engaged with one of the first base and the second base.