Zimmer MIS Multi-Reference, Surgical Technique, Page: 44 / 48

Zimmer MIS Multi-Reference 4-in-1 Femoral Instrumentation Surgical Technique
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Appendix 1
This appendix should be used as a
supplement to the MIS
Quad-Sparing ™
and MIS Multi-Reference 4-in-1 surgical
technique when the optional MIS
Telescoping Locking Boom (Fig. A) is
used. Follow the instructions for the
MIS Locking Boom (00-5983-028-
00) within the MIS
Quad-Sparing
and MIS Multi-Reference 4-in-1
surgical techniques with the following
additional instructions.
Surgical Technique
Attach the MIS Telescoping Locking
Boom to the yoke on the appropriate
MIS
Quad-Sparing A/P Sizing Tower
or MIS Multi-Reference 4-in-1 A/P
Sizing Guide. The position of the boom
dictates the exit point of the saw
blade for anterior bone cut and the
desired anterior position of the femoral
component.
Adjustable stylus: The Telescoping
Boom is attached to the yoke of the
A/P Sizing instrument (Fig. B). The
Stylus Tip is extended to the ideal point
on the anterior femoral cortex which
is located slightly lateral of patellar
femoral groove, proximal of the lateral
condyle where the slope begins to
flatten (i.e. valley).
The Telescoping Boom can easily be
adapted for use on either left medial/
right lateral or right medial/left lateral
cases. For left medial/right lateral use,
the etching - L MED/R LAT must be
facing up with the stylus tip pointing
down. If the stylus tip is pointing up,
slide the stylus fully distally using the
knob and rotate the knob 180 degrees
counterclockwise.
NOTE: The Stylus is designed to be
rotated at only one position.
The engraved lines on the stylus and
the Body of the Telescoping Locking
Boom must be in alignment during
sizing.
NOTE: Clear any soft tissue or bony
fragments that interfere with the
Telescoping Boom Body prior to sizing.
Fig. A
Fig. B
Adjustable Stylus
Engraved Lines
Telescoping Boom Body