FIELD: medicine; vertebrology. SUBSTANCE: device has catches between which distraction plate is positioned. Distraction place is connected with one end to rod by means of coupling, Rid has end recess from one side and cylindrical tail-piece, from the other. Tail-piece is provided with circular grooves along the full length. Circular grooves ensure longitudinal movement of catches. Distraction plate is made of titanium nickelide with number of longitudinal recesses. Its distal end is provided with steps and auxiliary catches. EFFECT: simple design of distractor, enhanced efficiency of treatment. 3 dwg
