Convertible stem/fracture stem

A humeral implant system, comprising:

• a reverse insert having a concave proximal surface and a protrusion extending distally;
• and
• a humeral anchor sized and configured to be received in at least a metaphysis of a humerus, the humeral anchor including:
• a first portion having a hemispherical shape and defining a cavity extending inwardly from a proximal rim and terminating a planar base, the cavity sized and configured to receive the protrusion of the reverse insert therein, the first portion of the humeral anchor further adapted to be coupled to an anatomic articulation component having a convex surface;
• and
• a second portion extending from an external surface of the hemispherical shape of the first portion and defining a longitudinal axis, the second portion including at least three members each of which extends from the external surface of the first portion toward a distal end of the second portion,
• wherein the second portion of the humeral anchor tapers along its length such that the distal end of the second portion is narrower than a proximal end of the second portion.

An implant system, comprising:

• a stem component sized and configured to be disposed in a humerus, the stem component including a proximal end having a hemispherical shape and defining a cavity that extends inwardly from a proximal face, a plurality of members extend from an external surface of the proximal end in a distal direction, the plurality of members including:
• a first member arranged medially with respect to a longitudinal axis defined by a distal portion of the stem;
• and
• two members arranged laterally with respect to the longitudinal axis and the first member,
• wherein the cavity includes engagement features for coupling a reverse articular component and an anatomic articular component to the stem, the engagement features including:
• a first engagement feature for coupling the reverse articular component to the stem, the first engagement feature including a circumferential groove defined by an interior surface of the proximal end of the stem that defines the cavity;
• and
• a second engagement feature for coupling the anatomic articular component to the stem, the second engagement feature including a recess defined by the proximal end of the stem within the cavity.

A humeral implant system comprising:

• a stem including:
• a proximal portion having a hemispherical shape, the proximal portion defining an interior cavity circumscribed by a proximal rim, wherein the interior cavity is configured to receive either of a reverse insert having a concave proximal surface and an anatomic insert having a convex proximal surface;
• and
• a second portion extending from the proximal portion of the stem along a longitudinal axis, the second portion sized and configured to be received in at least a metaphyseal portion of a humerus, the second portion including at least three arms extending radially away from the longitudinal axis, at least one arm of the at least three arms defining a hole sized and configured to receive one or more sutures,
• wherein the second portion of the stem tapers along its length such that a distal tip of the stem is narrower than a proximal end of the second portion of the stem.