41 DePuy Synthes MATRIX Spine System – Degenerative Surgical Technique
Optional Technique
Locking Cap Removal
Loosen locking cap
Instruments
03.620.061
T-Handle with Ratchet Wrench
and with Torque Limiter, 10 Nm
03.632.400
Screwdriver Shaft Stardrive, T25,
standard, straight tip, with Hexagonal
Coupling, for Matrix
03.632.049
Counter Torque, standard,
for Matrix 5.5
03.632.080
Handle, detachable, for Matrix
To remove a locking cap, slide the counter torque with
detachable handle over the screwhead. Place the ratchet
of the torque limiting handle in the neutral position, en-
gage a T25 screwdriver with the Stardrive recess of the
locking cap and turn counter-clockwise.
Note:
Locking caps are designed to lock the con-
struct and reduce the chance of post- operative
loosening and rod-push-through. Therefore, in
certain cases, the loosening torque may be higher
than 10 Nm. In such cases, use the following tech-
niques to remove a locking cap.
