Zimmer Biomet Persona, Surgical Technique, Page: 11 / 72

9 |
Persona
®
Revision Knee System
Surgical Technique
Figure 5 Figure 6 Figure 7
Note: For specific tapered stem preparation steps,
proceed with the standard technique until the
Tibial Stem Housing Preparation section on page
15. Then proceed to Appendix A for Tapered Stem
Preparation steps on page 49.
Fully flex the knee and locate the canal position of
the tibia. Use the 8 mm stepped drill bit to create a
medullary canal entry hole, if necessary (Figure 5).
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 6).
Tibial Preparation
Note: The guide is designed with a slip fit in
order for it to remain in place while reaming.
Using a T-handle or power, ream the tibial
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 or 175 mm stem extension implant for
the tibia and femur respectively (Figure 7). 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 tibial
canal for proximal tibial resection, if necessary.
Note:
The Persona Revision Tibial Baseplates
are designed with a 0° cut slope. Take caution
while reaming. The weight of a drill can push the
reamer into flexion.
Record the diameter and the tibial stem length
reamed.
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
Tibial Intramedullary
Canal Preparation
Thin Tibial Depth Line