Attachable Button System (ABS) The ABS has revolutionized tibial fixation of ACL and PCL grafts used in knee ligament surgery. ABS loops can be used on all graft types and attached to a variety of button configurations for fixation over sockets created with a drill or full tunnels with concave buttons. The flat-tape ABS loop improves handling characteristics and is designed to reduce graft abrasion. The two-piece ABS implant easily passes through narrow bone tunnels and allows increased cortical fixation with the assembly of a large button over the cortical bone. Use the ABS for tibial fixation during all-inside ACL reconstruction using graft fixation over tunnels created during transtibial ACL reconstruction. Slotted buttons can be loaded onto the implant and locked into place 02 I ACL Attachable Button System Larger attachable button options extend the footprint, maximizing button-to-bone contact against the cortex Buttonless implant facilitates passing through narrow bone tunn