Zimmer Biomet iASSIST Knee Manual page 36

iASSIST 2-Pod Version Surgical Technique
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Freehand Positioning of the Tibial
Adjustment Mechanism (cont.)
6. Place the distal part of the tibial alignment guide
on the ankle by firmly gripping the distal clamps
around the malleoli until both spikes are fully
inserted into the tibia.
Note: The tibial alignment guide is designed
to be self-centered when placed around the
malleoli.
Warning: After wrapping/preparing the ankle,
the surgeon should still be able to palpate the
malleoli.
7. While continuing to firmly grip the distal clamps
around the malleoli, partially insert (2-3 mm) the
longer spike of the proximal part of the tibial
alignment guide through the mechanical axis
entry point, without engaging the shorter spike.
8. While continuing to firmly grip the distal clamps
around the malleoli, set rotation using the tibial
alignment guide. Orient the instrument shaft to
align with the medial third of the tubercle.
Note: If the medial third of the tubercle was
previously marked with a surgical marking pen,
the instrument shaft can be aligned with this
reference.