The GTS System is used to secure the tibial end of a soft tissue ACL graft. Key to this system is the GTS Sleeve device, a woven mesh sleeve segmented into three tubular sections, called lumens. Two of these lumens hold graft tissue, and the third lumen accepts the GTS tapered fixation screw molded from bioabsorbable PLLA (poly-l-lactic acid). As this tapered screw is tightened, it presses the graft tissue against the sides of the tibial tunnel. The PLLA material biodegrades over several years, and is dispersed from the patient's body naturally.