Freehand Positioning Of The Tibial Adjustment Mechanism - Zimmer Biomet iASSIST Knee Manual

Surgical Technique for Bilateral
Procedure (cont.)
6. Press the "Z" button on the pod clipped to the
femoral reference or the tibial alignment guide to
start the registration.
Note: Intraoperative calibration does not have
to be repeated if the same iASSIST Knee Pod Kit
is used.
Warning: Always ensure that an additional
iASSIST Knee Pod Kit is available since battery
life could be insufficient for a bilateral procedure.
In this case follow the pod replacement
procedure detailed in the "General Equipment
Information: iASSIST Knee Pod Kit" section.
Do not reuse the 3.2 mm headless trocar drill
pins and the 3.5 X 38 mm hex head screw. Use
four new 3.2 mm headless trocar drill pins and
four new 3.5 X 38 mm hex head screws for the
second leg since they are single-use.
Figure 3.11
Instrument Assembly
Freehand Positioning of the Tibial
Adjustment Mechanism
The following section describes an alternate technique
for positioning the tibial adjustment mechanism on
the tibia without using the tibial positioner.
Instrument Assembly
1. Follow steps four and five of "Proximal Tibial Cut:
Instrument Assembly" section.
2. Using the green and gold screws, set the
varus/valgus and flexion/extension of the tibial
adjustment mechanism to the neutral position by
aligning the arrow with the laser marking (v/v) and
by aligning the arrows (f/e) respectively.
3. Insert the tibial cut guide elevator rod into the
tibial adjustment mechanism until the lowest line
increment is aligned with the bottom edge of the
insertion point.
iASSIST 2-Pod Version Surgical Technique
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