Quick connect thread locking mechanism and cam

An adapter inserter comprising:

• a body having a proximal end and a distal end;
• a first linkage located at the distal end;
• a second linkage extending from the proximal end to the distal end;
• a first cam connecting the first linkage to the second linkage;
• a lever connected to the body and defining a second cam connected to the second linkage;
• a collet spreader connected to the first linkage and comprising a flared surface located at a first end of the collet spreader;
• and
• a collet connected to the distal end of the body and encircling a portion of the collet spreader, the collet comprising:
• a protuberance extending from an exterior surface and sized to engage an indentation in an adapter, and
• an interior surface defining a collet cavity.
• wherein actuation of the lever causes
• rotation of the first cam via movement of the second linkage and the second cam, and
• the flared surface of the collet spreader to contact the interior surface of the collet, thereby causing the collet to expand and the protuberance to engage the indentation in the adapter.

A method for implanting an acetabular cup implant in a patient, the method comprising:

• obtaining or providing the acetabular cup implant;
• obtaining or providing an adapter inserter comprising a collet and a body, the collet connectable to a first end of a body of the adapter inserter
• placing a protuberance of the collet into a recess of the acetabular cup;
• securing the acetabular cup to the collet by rotating a lever of the adapter inserter from an unlocked position to a locked position without rotating the adapter inserter or the collet;
• striking an impact head of the adapter inserter to implant the acetabular cup in the patient;
• disengaging the collet from the acetabular cup by rotating the lever of the adapter inserter from the locked position to the unlocked position.