4 DePuy Synthes USS™ Universal Spine System Surgical Technique
Pedicle screw positioning
(posterior instrumentation)
1. Open pedicle and determine screw
length
Use the Pedicle Awl (1) (388.550) to open the cortex of
the pedicle to a depth of 10 mm. Continue opening the
pedicle using the USS Pedicle Probe Ø 3.8 mm (2)
(388.540) with markings at 30, 40 and 50 mm.
Determine the length of the pedicle screw using the
Depth Gauge for Screws (319.100).
Note:
For
Ø
4.0 mm or
Ø
5.0 mm pedicle screws use
the Pedicle Probe
Ø
2.8 mm (388.538).
2. Insert pedicle screw into pedicle
Pick up a side-opening pedicle screw as described on
page 3.
Note:
If a rod connector is needed, align the screw
head by turning it 90°. The opening has to be perpen-
dicular to the rod.
Insert the pedicle screw into the prepared pedicle until
the screw head is well seated (1). To disassemble the
stick from the handle press the button on the handle (2).
1
2
1
2
