14 DePuy Synthes MATRIX Spine System – Degenerative Surgical Technique
Surgical Technique
9. Distract
Instruments
388.410
Spreader Forceps for Pedicle Screws,
length 330 mm
03.632.401
Screwdriver Shaft Stardrive, T25, long,
straight tip, with Hexagonal Coupling,
for Matrix
03.620.061
T-Handle with Ratchet Wrench
and with Torque Limiter, 10 Nm
03.632.049
Counter Torque, standard,
for Matrix 5.5
Precaution:
Ensure all locking caps are fully re-
duced and provisionally tightened (see “Insert
1-step locking cap”). Failure to do so could poten-
tially lead to a misalignment.
Finally tighten one locking cap completely to create a
fixed point for distraction (see “Perform final tighten
-
ing”). Reverse the locking cap of the screw to be relo-
cated a quarter of a turn.
Use the distraction forceps to distract the construct.
Once in the desired position, tighten the locking caps
with the screwdriver.
The holding forceps can be used as a temporary point of
distraction when adjacent pedicle screws are too distant
from each other.
