This system and component keeps the implantation material of bony element for tension bar band (3), including shank (15) and positioning device (42) adjustably fastener component (29) and can translational motion obtain relative to the design of partially (25). Shank (15) includes handle (23), for being held in its second end (24), the part (25), which makes angle and the flexibility (3) of shank (15) tool, and there are two free ends. Component (29) include wheel (31) can freedom of motion relative to trunnion (32) perpendicular to part (25), around its circular periphery (33) include that two different elements (34,35) are fixed flexible-belt (3) for guide ribs band (3).
