Glenoid implant

A glenoid implant comprising:

• a stem portion having a longitudinal axis;
• and
• a body portion formed separately from the stem portion and attachable to the stem portion such that when attached, the body portion is carried at a proximal end of the stem portion,
• the body portion including an articular side, a bone-engaging side opposite the articular side, and a peripheral sidewall extending between the articular side and the bone-engaging side,
• the peripheral sidewall having a depth parallel to the longitudinal axis,
• at least a portion of the peripheral sidewall increasing in depth in a direction perpendicular to the longitudinal axis,
• the bone-engaging side including a bone-engaging surface that is convex at each location on the bone-engaging surface,
• the bone-engaging surface extending fully around a periphery of the bone-engaging side,
• the body portion including a plurality of apertures extending through the body portion between the articular side and the bone-engaging side,
• the stem portion including a concavely radiused surface adjacent the bone-engaging side and encircling the stem portion, the concavely radiused surface extending radially outward and intersecting at least one of the apertures.

A glenoid implant comprising:

• a body portion;
• and
• a stem portion formed separately from the body portion and attachable to the body portion such that when attached, the stem portion extends from the body portion along a longitudinal axis,
• the body portion having an articular side,
• at least a portion of the articular side including a surface that is concave and substantially spherical,
• the body portion having a bone-engaging side opposite the articular side,
• the bone-engaging side including a bone-engaging surface that is convex at each location on the bone-engaging surface,
• the bone-engaging surface extending fully around a periphery of the bone-engaging side,
• the bone-engaging surface including a first portion having a first peripheral edge disposed at a first angle α1 relative to at least a peripheral edge of the articular side and extending about the longitudinal axis by an angle θ substantially equal to 180°,
• the bone-engaging surface further including a second portion having a second peripheral edge disposed at a second, different angle α2 relative to at least the peripheral edge of the articular side,
• at least a portion of the bone-engaging side disposed at a non-parallel angle relative to at least the peripheral edge of the articular side,
• the body portion including a plurality of apertures extending through the body portion between the articular side and the bone-engaging side,
• the stem portion including a concavely radiused surface adjacent the bone-engaging side and encircling the stem portion, the concavely radiused surface extending radially outward and intersecting at least one of the apertures.