Zimmer Biomet Persona, Surgical Technique, Page: 35 / 72

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Persona
®
Revision Knee System
Surgical Technique
Femoral Box Cut Preparation
Remove the TASP assembly if inserted in the joint.
Prior to making a femoral box cut, flex the knee to
allow for adequate visualization of the posterior
capsule to avoid unintended neurovascular damage.
With the femoral provisional in place and the desired
position set, resect along each interior edge of the
femoral provisional with a reciprocating saw. Make
the wall cuts first, then proceed with the proximal box
cut along the ramp surface of the femoral provisional
until the intercondylar bone is resected (Figures 84
and 85). Once the bone has been removed, insert the
femoral box provisional that matches the same size
and side as the femoral provisional until fully seated
(Figure 86). Recut the femoral box if unable to insert
the box provisional. It is likely that bone is obstructing
assembly.
Note: The femoral box provisionals are size and
side specific and are compatible with both the
standard and plus femoral provisionals.
Figure 84
Figure 85
Figure 86
Note:
For femoral cone preassembly, with an offset
or large diameter stem, ensure the provisional is
not obstructing the box cut plane. If necessary, seat
the provisional more proximal until the cone clears
the box cut plane.
Note: Consider using the Persona Revision Femoral
Retractor while in flexion to elevate the femur and
protect the posterior structures while making the
resection.
Patella Resurfacing
If it is necessary to resurface the patella, reference the
Persona Primary Surgical Technique 97-5026-001-00
for surgical steps.