Superior approach stemless implant

A system configured to be implanted into a patient, the system comprising:

• a first implantable component configured to be inserted into a reamed-out or broached portion of a bone of a patient, the first implantable component extending between a first end and a second end, the first implantable component comprising:
• a central body extending from the first end of the first implantable component toward the second end of the first implantable component;
• and
• one or more fins attached to a periphery of the central body, the one or more fins extend radially outward from the central body and extend from the first end of the first implantable component to the second end of the first implantable component, the central body and the one or more fins are oriented at a major angle relative to the first end of the first implantable component, the major angle enables insertion of the first implantable component into the reamed-out or broached portion of the bone of the patient from a superior approach.

A method of performing arthroplasty on at least one of a glenoid or a humerus of a glenohumeral joint comprising:

• forming an entry incision in soft tissue superior and lateral to the glenohumeral joint;
• forming a passage from the entry incision to the glenohumeral joint;
• inserting a cutting instrument through the passage and cutting a natural humeral head of the humerus along an articular margin of the natural humeral head while the natural humeral head has no dislocation at all with respect to the glenoid and remains in its anatomical position;
• inserting an implant through the passage and securing the implant relative to the humerus with the implant oriented such that a longitudinal axis of a central body of the implant extends substantially parallel to a longitudinal axis of the humerus;
• and
• maintaining both a subscapularis muscle and a supraspinatus muscle associated with the glenohumeral joint intact and connected to surrounding bone during an entirety of the arthroplasty.