Surgical Technique USS™ Low Profile Spine System DePuy Synthes 7
Required instruments
388.510
USS Pedicle Feeler, length 260 mm
388.642
USS LP Hook Positioner, length 273 mm
310.190
Drill Bit, Ø 2.0 mm, length 102/75 mm
319.060
Depth Gauge for 1.5 to 2 mm screws
314.070
Screwdriver, hexagonal, small, length
200mm
388.381
Holding Sleeve for Fillister Head Screws
388.581
USS Drill Sleeve 2.0
The USS Low Profile Pedicle Hooks can be anchored in
the pedicle with a single Ø 3.2 mm USS Screw for
Pedicle Hook.
1. Prepare seat for pedicle hook
Prepare the pedicle using the USS Pedicle Feeler. Place
the pedicle feeler between the inferior and superior
facet joints.
Precaution:
Carefully check that the instrument is
placed in the articular joint space and not in the
bone of the inferior facet.
To facilitate insertion of the pedicle hook, remove a small
portion of the inferior facet with an osteotome (1). The
pedicle feeler has marks. When the last mark in direction
of the tip is reached, sufficient bone has been removed to
accommodate the hook around the pedicle (2).
Check the position of the pedicle feeler by moving it lat-
erally and cranially. The feeler should not move.
Precaution:
Do not push medially.
Remove the pedicle feeler.
Pedicle Hook Positioning
1
2
