Zimmer Biomet iASSIST Knee Manual page 29

Proximal Tibial Cut (cont.)
7. Lock the tibial cut guide in place by hand-
tightening the blue screw on the tibial adjustment
mechanism.
8. Secure the tibial cut guide onto the tibia by
inserting a 3.2 mm headless trocar drill pin in the
lateral hole.
9. Further stabilize the tibial cut guide onto the tibia
by inserting a 3.2 mm headless trocar drill pin in
the medial hole.
Note: Alternatively, a 3.5 X 38 mm hex head
screw can be inserted in the medial hole
instead of the 3.2 mm headless trocar drill pin.
When using a 3.5 X 38 mm hex head screw, the
screw must only be inserted halfway as to avoid
movement of the tibial cut guide.
x1
Figure 3.9
Proximal Tibial Cut
10. Remove the stylus.
iASSIST 2-Pod Version Surgical Technique
27 |
Warning: The fasteners used to secure the
tibial cut guide to the bone must be inserted
carefully to avoid perforating the second cortex
and to avoid potential interference with the
screws used to secure the tibial adjustment
mechanism.
Warning: If the tibial adjustment mechanism
is not fixated securely or moves, the tibial
registration should be performed again. Repeat
the steps described in the "Proximal Tibial Cut:
Tibial Registration" section.