Optional technique:
Position guide wire with aiming device
Instruments
03.010.412 Guide Wire Aiming Device for TFN,
for anterior posterior orientation
03.010.415 Connecting Screw for
Guide Wire Aiming Device, for TFN
03.010.471 Guide Wire Aiming Device Offset Block
Insert the guide wire aiming device for AP orientation into
the three holes on the anterior side of the aiming arm (where
the Miss-A-Nail jig is normally attached). Lock the guide wire
aiming device in place using the connecting screw for guide
wire aiming device.
Note:
The guide wire aiming device offset block can be
added to obtain an additional 10 cm of soft tissue clearance.
Position the C-arm for an AP image. Rotate the C-arm until
any two orientation lines are symmetric to the blade guide
sleeve.
The midline (line between the two orientation lines) repre-
sents the guide wire trajectory.
Notes
– The outer lines can be used to determine the center of the
femoral head.
– If the nail must be repositioned to improve guide wire
placement, turn the buttress/compression nut clockwise to
retract the blade guide sleeve and use the insertion handle
to make the adjustments. Do not pull on the blade guide
sleeve or the guide wire to make this adjustment as this
could affect the accuracy of the aiming assembly.
TFN – Titanium Trochanteric Fixation Nail System
Technique Guide
Synthes
25
