Patent ID: 8118875

Claim:
An orthopedic device for ball and socket joint reconstruction, the orthopedic device comprising: an anchor stem comprising a distal portion adapted to be anchored in a medullary canal and a proximal portion with a threaded hole oriented along a longitudinal axis of the anchor stem; a metaphyseal portion comprising a proximal end with a recess and a longitudinal bore in fluid communication with the recess, and a distal end adapted to interface with the proximal portion of the anchor stem; an anti-rotation structure located at an interface of the anchor stem to the metaphyseal portion that prevents rotation of the anchor stem relative to the metaphyseal portion around the longitudinal axis; a fastener comprising a proximal end with a head and a threaded distal end, the fastener adapted to extend through the longitudinal bore and engage with the threaded hole on the anchor stem to fix the metaphyseal portion to the anchoring stem; a locking assembly adapted to be located in the recess to mechanically couple the head of the fastener to the metaphyseal portion to limit rotation of the fastener relative to the metaphyseal portion; and an insert comprising an articular surface, the insert adapted to engage with the proximal end of the metaphyseal portion and to extend over the recess in the metaphyseal portion.