Patent ID: 8734462

Claim:
An assembly for the fixation or fusion of bone structures comprising first and second bone segments separated by a fracture line or joint, the assembly comprising an anchor body sized and configured to be introduced into the first and second bone segments and transversely across the fracture line or joint, the anchor body having a distal end located in an interior region of the second bone segment; a proximal end located outside an exterior region of the first bone segment; and an intermediate region spanning the fracture line or joint between the first and second bone segments, a distal anchor secured to the interior region of the second bone segment and reversibly affixed to the distal end of the anchor body to anchor the distal end in the second bone segment, a proximal anchor secured to the exterior region of the first bone segment and affixed to the proximal end of the anchor body to place, in concert with the distal anchor, the anchor body in compression to compress and fixate the bone segments relative to the fracture line or joint, and an elongated implant structure having a lumen extending therethrough and configured to be disposed coaxially over the intermediate region of the anchor body and between the proximal anchor and distal anchor and transversely spanning the fracture line or joint between the bone segments, the elongated implant structure including an exterior surface region treated to provide bony in-growth or through-growth along the implant structure to accelerate the fixation or fusion of the first and second bone segments held in compression and fixated by the anchor body.