8
Engage locking mechanism
Instruments
357.406 Screwdriver, hexagonal,
5.0 mm, flexible
357.417 Flexible Hexagonal Screwdriver
5.0 mm,
coated
357.427 Screwdriver, hexagonal
5.0 mm
The preassembled locking mechanism in the nail should be
advanced to control the rotation of the head element. Pass
the 5.0 mm flexible hexagonal screwdriver through the
cannulated connecting screw and insertion handle until it is
seated in the hex of the lock drive. Turn clockwise to
advance the locking mechanism. Advance to the stop. The
head element is now locked in rotation, but can still slide
(see figures A and B).
Optional technique
Instruments
321.200 Ratchet Wrench for Nut, hexagonal,
11.0 mm
357.415 Shaft, hexagonal
5.0 mm,
length 210 mm
Use the 5.0 mm hexagonal shaft, 210 mm in conjunction
with the ratchet wrench to advance the locking mechanism.
Note:
If the locking mechanism is not advanced, use of
an end cap is not possible.
TFN – Titanium Trochanteric Fixation Nail System
Technique Guide
Synthes
33
Figure A: Locking mechanism disengaged
Figure B: Locking mechanism engaged