Stryker T2, Оперативная техника

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Operative Technique
Solid Stepdrill Technique
For the insertion of proximal screws
in Recon Mode, the Solid Stepdrill
Technique, which is mentioned in this
chapter, is the recommended method
to optimize the proximal targeting
accuracy.
Attach the Recon Paddle Trocar to the
T-Handle, AO Medium Coupling as
demonstrated in Fig. 21. Then slide the
Tissue Protection Sleeve together with
the Paddle Trocar assembly to the
skin through the proximal target hole
labeled (B).
A small skin incision is made and the
assembly is pushed through until it
is in contact with the lateral cortex.
When the tip of the sleeve is in contact
with the lateral cortex, lock the sleeve
by turning the knob further to the
position labeled (A+B) (Fig. 30).
Then remove the Trocar assembly
and insert the Drill Sleeve for the
Recon Solid Stepdrill while the distal
K-Wire and K-Wire Sleeve are still
left in place. The Drill Sleeve for
the Recon Solid Stepdrill is inserted
through the proximal target hole
labeled (B) of the Targeting Device.
The Ø6.5mm Solid Stepdrill for Recon
Lag Screw is forwarded through the
Tissue Protection Sleeve and Drill
Sleeve assembly and pushed onto the
lateral cortex. There is a dedicated
Drill Sleeve for the Solid Stepdrill
Technique. This Sleeve is marked “Use
with Solid Step Drill“ as shown
(Fig. 31b).
Reaming is performed under
fluoroscopic control just until the tip
of the Solid Stepdrill for Lag Screw
reaches the subchondral bone. The
required length of the Lag Screw can
be read directly off the Recon Solid
Stepdrill for Lag Screw at the end of
the Drill Sleeve (Fig. 31a).
Fig. 31
Fig. 31a
Fig. 31b
Fig. 30
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