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The RetroFix screw is a cannulated tapered screw intended to be used as stand-alone bone screw for internal bone fixation for bone fractures of the ankle.

The RetroFix screw is a cannulated tapered screw intended to be used as a stand-alone bone screw for internal bone fixation for bone fractures of the ankle. The screw shaft has a predetermined length with a cannula extending through the length of the shaft. The shaft has a relatively large outside diameter proximal segment, a smaller outside diameter threaded distal segment, and a flared end. The proximal segment and the distal segment are unitary. The cannula is adapted for use with a surgical K-wire. The screws have cortical threads and come in many different sizes, varying in diameter and lengths. The device does not come sterile and must be sterilized prior to use.