DEVICE: Medline (10888277719552)

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.

A rotary surgical instrument designed to enlarge the diameter of the proximal portion of a hole drilled in bone. It is a shaft of metal with a cutting head, available in various configurations, that is rotated at low speeds typically by a drilling system. The device is typically used to recess the head of a screw/bolt within bone (enable it to lie flush with or below the bone surface) or to help accommodate the implantation of a device in bone. This is a reusable device.