18 DePuy Synthes MATRIX Spine System – Degenerative Surgical Technique
Surgical Technique
Option B:
Reduce rod with a rocker fork
Instruments
03.632.010
Rocker Fork, small, for Matrix 5.5
03.632.012
Rocker Fork, medium, for Matrix 5.5
03.632.011
Rocker Fork, footed, for Matrix 5.5
Use a rocker fork to lever the rod into the head of the
pedicle screw.
Reduction travels:
Small Rocker Fork = 8.5 mm
Medium Rocker Fork = 13.5 mm
Footed Rocker Fork = 7.5 mm
Technique tip:
Use the footed MATRIX rocker fork
to aid in reducing the rod into adjacent screw heads.
Precaution:
If significant reduction forces are encountered,
consider
•
screw height adjustments
•
rod placement to reduce muscle entrapment.
