Synthes The Titanium Femoral Nail System, Technique Manual

Page: 35 / 78

130
°
Antegrade Locking
(continued)
Insert the 4.9 mm
Locking Bolt or 5.0 mm
Locking Screw
Extend the insertion site
incision, or make a separate
stab incision under the
protection sleeve. Insert the
4.0 mm drill sleeve and trocar
into the protection sleeve to
bone. Remove the trocar.
Drill through both cortices with
the 4.0 mm calibrated drill bit,
stopping the drill immediately
after penetrating the far cortex.
Confirm drill bit position
radiographically. Be sure
the drill sleeve is pressed firmly
to the cortex, and read direct
locking bolt or locking screw
length from the calibrated
drill bit at the back of the
drill sleeve.
7
34
To use the depth gauge, remove
the drill sleeve, measure
through the protection sleeve
using standard depth gauge
technique, and
add 2 – 4 mm
to the reading to ensure thread
engagement of the far cortex.
Insert the locking bolt or locking
screw through the protection
sleeve using the screwdriver.
Drill and read bolt
or screw length
Insert the locking bolt
or locking screw