Zimmer Biomet iASSIST Knee Manual page 37

Freehand Positioning of the Tibial
Adjustment Mechanism (cont.)
9. While continuing to firmly grip the distal clamps
around the malleoli, impact the instrument until
both spikes are fully inserted in the tibia.
Warning: Care must be taken when impacting
the spikes of the tibial alignment guide to avoid
potential interference between the spikes and
the screws used to secure the tibial adjustment
mechanism.
Impact the tibial alignment guide in-line with
the spikes of the instrument. Off-axis impaction
may result in bending of the spikes.
The two spikes of the tibial alignment guide
must be positioned and inserted carefully in
order to avoid loosening.
Figure 3.12
Tibial Registration (Continued)
10. Ensure the distal clamps of the tibial alignment
guide remain securely positioned on the malleoli.
If a readjustment is necessary, ensure the shaft
of the guide remains immobile and in proper
alignment. Adjust by rotating the distal part of
the guide and resecure the clamps around the
malleoli.
Warning: Do not pull on the distal part of the
tibial alignment guide once both spikes have
been inserted into the tibia. Doing so may
result in bending of the spikes.
iASSIST 2-Pod Version Surgical Technique
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