Zimmer MIS Multi-Reference Surgical Technique page 20

18
Zimmer MIS Multi-Reference 4-in-1 Femoral Instrumentation Surgical Technique
When the proper rotation and the
mediolateral and anteroposterior
position are achieved, secure the
finishing guide to the distal femur. Use
the Screw Inserter/Extractor to insert
a 3.2mm Headed Screw or predrill and
insert a Hex-head Holding Pin through
the superior pinhole on the beveled
medial side of the Femoral Finishing
Guide (Fig. 4o). Then secure the
lateral side in the same manner. For
additional stability, predrill and insert
two Short-head Holding Pins through
the inferior holes on one or both sides
of the guide.
Fig. 4o
Use a 1.27mm (0.050-in.) narrow,
oscillating saw blade to cut the femoral
profile in the following sequence for
optimal stability of the finishing guide
(Fig. 4p):
1 Anterior condyles
2 Posterior condyles
3 Posterior chamfer
4 Anterior chamfers
1
4
Fig. 4p 3
2
Use the Patellar/Femoral Drill Bit to drill
the post holes (Fig. 4q).
Fig. 4q
Use the 1.27mm (0.050-in.) narrow,
reciprocating saw blade to cut the
base of the trochlear recess (Fig. 4r)
and score the edges (Fig. 4s). Remove
the finishing guide to complete the
trochlear recess cuts.
Fig. 4r
Fig. 4s