Zimmer Biomet Persona, Surgical Technique, Page: 22 / 72

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Persona
®
Revision Knee System
Surgical Technique
Optional Tibial Augment Resection
Note: The keel provisional should not be assembled
at this time.
Tibial augments are available in medial and lateral
sides and offered in 5, 10 and 15 mm thicknesses.
With the tibial provisional in the canal, insert the
appropriate “Left” or “Right” tibial augment cut guide
into the medial slot of the tibial baseplate provisional
(Figure 41). If necessary, pin the cut guide to the
tibia. The tibial augment cut guide has three slots
which correspond to a 5, 10 and 15 mm augment
cut. Cut through the appropriate augment slot and
make a preliminarily transverse cut based on the
desired augment thickness (Figure 42). Mark or score
the sagittal cut plane along the lateral side of the
guide and the posterior notch of the tibia provisional
to finish the cut when the provisional is removed
(Figure 43). Remove the tibial augment cut guide
and all provisional components and complete the
remaining bone cuts. Reassemble the tibial construct
with the keel provisional and stem provisional.
Once assembled, insert the tibial augment
provisional/s (Figure 44).
If a lateral augment needs to be prepared, select the
opposite augment cut guide and insert it into the
medial slot which will provide some level of guidance
for the resection. The lateral augment cuts will need
to be carefully completed with the tibial provisional
removed.
Note: If two 10 mm or 15 mm tibial augments
are being utilized, they will cover the fins of the
keel reducing rotational resistance. Consider
using a Trabecular Metal Cone to restore rotational
resistance.
Note: If preparing the tibial bone to be used with
a Trabecular Metal Augment, ensure the bone
opposing surface of the Trabecular Metal Augment
will make contact with the resected tibia.
Figure 44
Figure 42
Figure 43
Figure 41