8 DePuy Synthes USS™ Small Stature/Paediatric Spine System Surgical Technique
The USS Small Stature/Paediatric 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 pedicle feeler (388.511)
(1). Place the pedicle feeler between the inferior and
superior facet joints.
Precaution:
Ensure that the feeler is placed in the
articular space and not in the bone of the inferior
facet.
To facilitate the insertion of the pedicle hook, remove a
small portion of the inferior facet with an osteotome (2).
The pedicle feeler has a mark. As soon as the mark is
reached, sufficient bone has been removed to accommo-
date the hook around the pedicle.
Check the optimal position of the pedicle feeler by mov-
ing it laterally and cranially (3).
Precaution:
Do not push medially.
Remove the pedicle feeler.
Position Pedicle Hook
Haken 03 S11
13_01 USS II = 11_01b Ped.Hooks
3
3
Haken 02 S11s
13_01a USS II = 11_01a Ped.Hooks
2
1
3 mm
