The standard Kompressor Compression Screw is a two-piece fixation device intended for the use in the reduction, stabilization, and internal fixation of bone fractures. The 2-piece design incorporates the use of a leading and trailing screw component. The implant utilizes a variance in thread pitch between the leading and trailing portions of the screw to reduce and fix fracture fragments, and is available in a variety of sizes to accommodate various fracture types and sites.
A small, 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). There are a number of kinds available: 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 across bone fragments.
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