Distal Locking with the Distal Aiming Device, contd.
image intensification required for this step
Click on image for enlarged view
5. Under image intensification, drill through both cortices with the
4.0 mm/4.5 mm Drill Bit. Use the Direction Finder to confirm and
adjust drilling direction. The Oscillating Attachment with the 4.0 mm/
4.5 mm Three-Fluted Drill Bit is recommended to prevent spooling of
the soft tissue around the bit.
Note: If the image intensifier position does not allow sufficient
clearance for drilling, use the two-step drilling procedure described
in the Drilling in Two Steps section of this guide.
Remove the drill sleeve. Measure for the proper length of the 4.9 mm
Locking Bolt through the aiming device. Select a locking bolt 2 mm
longer than the measured length, to compensate for the tapered
trocar tip and ensure lull engagement of the far cortex. Set this locking
bolt aside.
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