Zimmer Biomet Persona, Surgical Technique, Page: 23 / 72

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Persona
®
Revision Knee System
Surgical Technique
Figure 45 Figure 47
Figure 46
Femoral Preparation
Note: For specific tapered stem preparation steps,
proceed with the standard technique until the
Femoral Stem Housing Preparation section on
page 25. Then proceed to Appendix A for Tapered
Stem Preparation steps on page 49.
Fully flex the knee and locate the canal position of
the femur. Use a 8 mm stepped drill bit to create a
medullary canal entry hole, if necessary (Figure 45).
Canal Preparation and Alignment
If desired, alignment may be checked while reaming.
To assist with proper reamer alignment, attach the
alignment rod with coupler to the reamer alignment
guide and connect to the reamer post (Figure 46).
Note:
The guide is designed with a slip fit in order
for it to remain in place while reaming.
Point the reamer alignment rod with coupler along
the anatomical axis of the femur. Using a T-handle
or power, ream the femoral intramedullary canal to
the appropriate depth, progressively increasing the
reamer diameter size until cortical chatter is achieved.
The Persona Revision Reamer shafts are marked with
the minimum ream depth marks to prepare for a 135
mm and 175 mm stem extension implant for the tibia
and femur respectively (Figure 47). A “T” indicates the
line for the proximal tibial resection plane and a “F”
indicates the distal femoral resection plane.
Leave the final reamer diameter used in the femoral
canal for optional distal femoral resection.
Note: Take caution while reaming as the weight of a
drill can push the reamer into flexion.
Record the diameter and the femoral stem length
reamed.
Femoral Intramedullary Canal
Preparation
Stem Type
Stem Length
(mm)
Diameters
(mm)
Offset
Smooth +135/+175
10– 24 Even
Sizes Only
Straight Only
Splined +135/+175 10–18, 20, 22, 24 Straight, 3 mm,
6 mm
Tapered +30/+75 11, 14 N/A
Note: + in addition to stem housing
Thick Femoral Depth Line