Cannulated Screw Surgical Procedure

	Use the standard technique to reduce the fracture fragment or surgical osteotomy/fusion site.

 

	Determine the proper position and orientation of the cannulated screw. Insert the appropriate size K-wire in the same direction and position of the desired screw.

	The appropriate length of screw can be determined in one of two ways:
The surgeon can "feel" the pressure imposed on the K-wire when it comes in contact with the far cortex. The wire is then advanced slightly to penetrate the far cortex. The K-wire driver is then removed and the cannulated depth gauge is placed over the remaining exposed wire.   Visualize the penetration of the far cortex with the K-wire. Allow 1-2 mm of exposed K-wire. Measure with the cannulated depth gauge.

	With a stabilized K-wire in place, countersink the screw hole, first with the small countersink and then with the large countersink.

	Select the properly sized (width and depth) screw. Slide it over the K-wire and screw it into place. The screw tension will be firm at first then slide slightly. The distal screw will engage the far cortex then tighten into place.

Click Here for a printable Instructions For Use (IFU) for our Cannulated Screw System.