The I.CO.S Screw is a cannulated compression screw with non-threaded shaft, allowing optimal compression. The head of this screw can be driven forward and translated along the body in order to increase the compression controlled by the surgeon. It also has a self-tapping screw tip. It is indicated for fixation of bone fractures or for bone reconstruction. It is delivered non sterile and it is made from titanium alloy.
A small, non-sterile, 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 cannot be chemically degraded or absorbed via natural body processes (includes implant grade metal such as surgical steel, titanium alloy, or carbon fibre). Screws available are: cortical, cancellous, malleolar, scaphoid, partially-threaded and fully-threaded, self-tapping, and cannulated. A "lag screw" can be any of these used to obtain compression. This device must be sterilized prior to use.