Arthrodesis implant for finger joints and related methods

An arthrodesis implant for a finger joint of a hand of a patient comprising:

• an extramedullary proximal anchor comprising a first elongate curved member having at least one fastener-receiving passageway therethrough to receive at least one fastener to anchor said first elongate curved member to an extramedullary portion of a proximal bone of the finger joint of the hand of the patient;
• an intramedullary distal anchor comprising a second member that includes a threaded shaft for being anchored within an intramedullary portion of a distal bone of the finger joint of the hand of the patient;
• a coupling comprising a tube connected to said first elongate curved member and extending transversely therefrom, and
• a threaded sleeve that extends into said tube and threadably receives said threaded shaft of said second member for securing said first elongate curved member and said second member together, said threaded sleeve being positioned between said threaded shaft and said tube, said second member engaging said coupling to prevent relative movement between the second member and the coupling.

An arthrodesis implant for a finger joint of a hand of a patient comprising:

• a first anchor member having at least one straight passageway extending entirely therethrough, each of the at least one passageways for receiving a fastener to anchor the first member to an extramedullary portion of a proximal bone of the finger joint of the hand of the patient;
• a second anchor member having a threaded shaft and for being anchored within an intramedullary portion of a distal bone of the finger joint of the hand of the patient;
• a tubular coupling connected to and extending transversely from the first member, an end of the tube spaced from the first member having an internal reduced diameter portion;
• and
• a threaded sleeve that extends into the coupling and threadably receives the threaded shaft of the second member, the threaded sleeve being positioned between the threaded shaft and the coupling and engaging the reduced diameter portion of the coupling to prevent relative movement of the second member in a first direction relative to the coupling, the second member engaging the reduced diameter portion of the coupling to prevent relative movement of the second member in a second direction opposite the first direction relative to the coupling.