Elbow prosthesis

An implant device for a joint prosthesis, the device comprising:

• a stem comprising a proximal portion configured to be implanted into a bone of a patient, a connecting portion comprising a curved body, and a bore extending along a first axis through a distal portion of the curved body of the connecting portion;
• and
• an articulating head configured to removably couple to the stem, the articulating head comprising a body extending between a lateral side and a medial side and including an articulating surface, a first passage extending through the body along a second axis, a receiving groove formed into the body and configured to receive the curved body of the connecting portion of the stem to removably couple the articulating head to the stem, and a second passage extending through the body along a third axis, the second passage intersecting the receiving groove, wherein, in an assembled state in which the articulated head is coupled to the stem, the first axis is aligned with the third axis, and the second axis is located between the third axis and the proximal portion of the stem;
• a first securing member that, in the assembled state, extends within the second passage and the bore to secure the articulating head to the stem;
• and
• a second securing member that, in the assembled state, extends through the first passage to secure the articulating head to the bone of the patient.

An implant device for a joint prosthesis, the device comprising:

• a stem comprising a proximal portion configured to be implanted into a bone of a patient, a connecting portion comprising a curved body, and a bore extending along a first axis through a distal portion of the curved body of the connecting portion;
• and
• an articulating head configured to removably couple to the stem, the articulating head comprising a body extending between a lateral side and a medial side, and comprising:
• an articulating surface comprising a substantially hemispherical surface,
• a bone engaging surface opposite the articulating surface, wherein the bone engaging surface is convex,
• a first passage extending through the body along a second axis,
• a receiving groove formed into the body and configured to receive the curved body of the connecting portion of the stem to removably couple the articulating head to the stem, and
• a second passage extending through the body along a third axis, the second passage intersecting the receiving groove,
• wherein, in an assembled state in which the articulated head is coupled to the stem, the first axis is aligned with the third axis, and the second axis is located between the third axis and the proximal portion of the stem.