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Technique for Insertion of the Conventus Cage for Distal Radial Fracture Fixation
Paul Paterson1, Scott Wolfe2, Andrew K Palmer3
1Excelsior Orthopedics, Amherst, New York.
Introduction:
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.
Step 1 Reduce The Fracture:
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.
Step 2 Provisionally Stabilize The Fracture:
Provisionally stabilize the reduced fracture for insertion of the cage and fragment-specific screws with either longitudinal finger-trap traction or longitudinal Kirschner wires.
Step 3 Prepare For Cage Fixation:
Prepare the distal part of the radius for cavity preparation and insertion of the Conventus DRS Cage.
Step 4 Insert The Conventus Drs Cage:
Insert the previously chosen small or large Conventus DRS Cage.
Step 5 Fix The Fracture Fragments:
Anatomically fix the fracture fragments to the cage and radial shaft.
Step 6 Confirm Fracture Stability:
Move the wrist through a full range of motion while assessing fluoroscopically whether the fracture has been stabilized with the cage-and-screw construct.
Step 7 Close The Wound:
Close the skin incision and cutdown wounds and apply dressings.
Results:
The Conventus DRS Cage has been used for treatment of distal radial fractures in the U.S. for >3 years.
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