The Bilok® Tapered Screw is a cannulated, sterile, single-use bone screw made of an absorbable Poly (L-lactic) acid and calcium phosphate which will gradually be absorbed into the body over a period of 24 months. This function however is patient dependant. The Bilok° Screw provides an interference fixation during femoral and/or tibial fixation in ACL reconstruction that resorbs and is replaced with bone during the healing process. Bilok® Screws are biodegradable and biocompatible.
A small, threaded rod with a slotted head typically used for internal orthopaedic fracture fixation by being screwed into bone to hold plates or nails to bone or to provide direct interfragmentary stabilization of bone, or it may fasten soft tissue to bone; it is made of a material that is chemically degraded and typically absorbed via natural body processes (e.g., degradable polymers). There are several kinds available: cortical, cancellous, malleolar, scaphoid, partially-threaded and fully-threaded. A "lag screw" can be any of these used to obtain compression across bone fragments.