Baseplate of a modular shoulder joint prosthesis and related methods for implanting the same

A collet for use in a shoulder joint implant, comprising:

• a cylindrical body having an annular base portion on a distal portion thereof, at least three radially compressible arms, and a plurality of open-ended slots disposed between the radially compressible arms, each slot of the plurality of open-ended slots having a base end that is closed and terminates proximate to or at the annular base portion and an open-end that is open and terminates at a proximal-most end of the cylindrical body, the open-ended slots being spaced about a circumference of the cylindrical body;
• one or more lateral protrusions protruding radially outward from at least one of a radially compressible arm of the at least three radially compressible arms or the annular base portion, the one more lateral protrusions being configured to provide resistance to torsional rotation;
• and
• an annular protrusion disposed on a proximal portion of the cylindrical body, distal of the proximal-most end of the cylindrical body, the annular protrusion protruding radially outward from a main body portion of one or more radially compressible arms of the at least three radially compressible arms, and the annular protrusion being configured to secure the collet at a predetermined depth.