Orthopedic compression device

An orthopedic compression device comprising:

• an outer shaft portion having a threaded outer distal end and having an inner cannulation extending from an opening in a proximal end towards an inner distal end, the inner cannulation having a proximal region;
• a head portion, the head portion having a distal end portion with a geometry matched to the proximal region of the cannulation of the outer shaft portion and configured to allow rotation of the head portion to drive rotation of the outer shaft portion, the head portion including an inner channel, wherein the head portion includes a threaded external surface;
• and
• an inner shaft portion, the inner shaft portion formed from a superelastic material and having a stop at a proximal end thereof, the stop engaging a stop surface formed within the head portion, the inner shaft portion extending through the inner channel and coupled to the outer shaft portion;
• wherein the inner shaft portion elongates and is placed into tension upon separation of the head portion and outer shaft portion to thereby cause a compressive force between said head portion and said outer shaft portion upon said separation,
• wherein a proximal end of the head portion includes a first driver interface configured to receive a corresponding first driver used to rotate said head portion and to cause driven rotation of the outer shaft portion;
• wherein the inner shaft portion includes a thread disposed on a distal end thereof, the thread engaging a thread on the inner distal end of the outer shaft portion to cause coupling of the inner shaft portion and the outer shaft portion, and wherein the inner shaft portion includes a second driver interface that is accessible via a distal opening in the inner cannulation of the outer shaft portion.