The BioScrew interference screws are clinically equivalent to metal interference screws. Made of Poly (L-Lactic Acid), the screw ensures secure graft fixation throughout the healing process and is gradually absorbed, eventually disappearing. There are three versions of bioabsorbable interference screws in the BioScrew family; Guardsman® Style BioScrew Femoral Interference Screw, BioScrew XtraLok® Tibial Interference Screw and the standard BioScrew Interference screw that can be used in femoral and/or tibial applications.