Abstract: A bone compression and distraction system which has an apparatus and a plurality of pins. The apparatus includes a body, a worm screw and a pair of pin attachment members. The worm screw is placed in the body and the pin attachment members are coupled to the worm screw, and constrained from rotation relative to the worm screw, wherein the worm screw has opposing threads extending away from a central region. Upon rotation of the worm screw, the pin attachment members travel in opposite directions, either toward each other or away from each other to either decrease or increase the spacing therebetween. A pin may be coupled to each of the pin attachment members.

Abstract: A bone compression and distraction system which has an apparatus and a plurality of pins. The apparatus includes a body, a worm screw and a pair of pin attachment members. The worm screw is placed in the body and the pin attachment members are coupled to the worm screw, and constrained from rotation relative to the worm screw, wherein the worm screw has opposing threads extending away from a central region. Upon rotation of the worm screw, the pin attachment members travel in opposite directions, either toward each other or away from each other to either decrease or increase the spacing therebetween. A pin may be coupled to each of the pin attachment members.

Abstract: A bone compression and distraction apparatus comprising a body, a worm screw and left and right wire attachments. The body defines an elongated tubular member with a first end and a second end. The worm screw is positioned within the body. The worm screw has right hand threads extending from a central region to a first end thereof and left hand threads extending from the central region to a second end thereof. The right wire attachment threadedly engages the right hand threads. The left wire attachment threadedly engages the left hand threads. Rotation of the worm screw either directs the right and left wire attachments toward each other or away from each other.