Zimmer MIS Multi-Reference, Surgical Technique, Page: 37 / 48

Zimmer MIS Multi-Reference 4-in-1 Femoral Instrumentation Surgical Technique
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B
C
D
A
E
F
G
H
Step Nine
Perform Trial Reduction
In this step, a trial reduction is
performed to check component
position, patellar tracking, ROM,
and joint stability.
The Tibial Sizing Plate is in place.
Knee in 70°-90° flexion
Place the Collateral Retractor laterally,
an Army-Navy retractor anteriorly,
and a rake retractor on the meniscal
bed medially.
Insertion of Femoral Provisional
using Optional MIS Femoral
Inserter/Extractor
A. PS or CR femoral rotation setting
B. PS or CR tension setting
C. Femoral rotation adjustment knob
D. Tension adjustment knob
E. Trigger
F. Instrument hook
G. Locking handle
H. Slaphammer slot
Determine type of NexGen implant or
provisional being used – Posterior
Stabilized (PS) or Cruciate Retaining
(CR). Refer to the side of the
instrument, labeled PS or CR (see (A)
& (B)) which corresponds with the
implant or provisional type (Fig. 9a).
Initially adjust femoral rotation setting
and tension setting. For the femoral
rotation setting, a good starting point
is between the lines of the implant type
(A). For the tension setting, start with
the two lines aligned (B).
Open locking handle (G) to attach
implant or provisional. Attach implant
or provisional by positioning the
instrument hook (Fig. 9b).
Fig. 9a
Fig. 9b