Technique for Insertion of the Conventus Cage for Distal Radial Fracture Fixation.

Abstract

Use of the intramedullary Conventus DRS Cage and fragment-specific screw fixation of distal radial fractures minimizes soft-tissue trauma, leading to earlier and improved wrist and finger motion while reducing traditional complications seen with internal fixation of distal radial fractures. Reduce the fracture with closed or, if necessary, open methods to achieve anatomic restoration of articular congruity, radial inclination, radial length, volar tilt, and coronal shift. Provisionally stabilize the reduced fracture for insertion of the cage and fragment-specific screws with either longitudinal finger-trap traction or longitudinal Kirschner wires. Prepare the distal part of the radius for cavity preparation and insertion of the Conventus DRS Cage. Insert the previously chosen small or large Conventus DRS Cage. Anatomically fix the fracture fragments to the cage and radial shaft. Move the wrist through a full range of motion while assessing fluoroscopically whether the fracture has been stabilized with the cage-and-screw construct. Close the skin incision and cutdown wounds and apply dressings. The Conventus DRS Cage has been used for treatment of distal radial fractures in the U.S. for >3 years.