Humeral and glenoid articular surface implant systems and methods

A shoulder implant system comprising:

• a glenoid implant;
• a baseplate comprising an implant facing surface to face the glenoid implant, and a glenoid facing surface to face a glenoid of a subject, the baseplate having an outer periphery disposed between the implant facing surface and the glenoid facing surface;
• a first fixation element extending from the glenoid and having a distal end configured to engage with a second fixation element disposed on the implant facing surface;
• wherein the implant facing surface of the baseplate comprises a channel which extends from the outer periphery of the baseplate to the second fixation element of the baseplate, the channel having a first depth with reference to the implant facing surface that is less than a dimension of the outer periphery extending from the implant facing surface to the glenoid facing surface;
• and
• wherein the channel is configured such that, during an assembly of the glenoid implant and the baseplate, the distal end of the first fixation element is movable in the channel from the outer periphery of the baseplate to the second fixation element of the baseplate.