RING SYSTEM FOR EXTERNAL FIXATION OF BONE AND RELATED METHOD

摘要

An external fixator (10) for adjustably securing first and second portions (14) and (18) of a bone (12) includes a ring assembly (28) and a bone screw clamping assembly (26) interconnected by a central body (24). The ring assembly (29) secures one or more tension wires (20) adapted to pass through the first portion (14) of the bone (12). The bone screw clamping assembly (26) secures one or more bone screws (16) adapted to engage the second portion (18) of the bone (12). The ring assembly (28) includes a generally circular frame (100) having a peripheral groove (140) for securing a tension wire carriage (102) anywhere therealong. The tension wire carriage (102) is adjustable so that the tension wire (20) may be positioned above or below the frame (100). One or more connector rods (150) are used to rigidify the external fixator (10) by interconnecting the ring assembly (28) and the bone screw clamping assembly (26).