Zimmer MIS Multi-Reference, Surgical Technique, Page: 25 / 48

Zimmer MIS Multi-Reference 4-in-1 Femoral Instrumentation Surgical Technique
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Attach the Ankle Clamp or optional
Spring to the Ankle Bar. Then slide
the Ankle Bar onto the dovetail at the
bottom of the MIS Distal Telescoping
Rod. Turn the knob opposite the dovetail
to temporarily hold the bar in place.
Arrows are etched onto both the MIS
Tibial Adjustable Rod and the MIS
Distal Telescoping Rod to indicate the
correct orientation during assembly.
With the arrows aligned, insert the MIS
Tibial Adjustable Rod into the Distal
Telescoping Rod (Fig. 5b). Adjust the
length to approximate the length of the
patient’s tibia and temporarily tighten
the thumb screw at the proximal end of
the distal rod.
Fig. 5b Arrows showing correct alignment
Attach the correct right or left Tubercle
Anchor onto the corresponding side of
the MIS Tibial Adjustable Rod. For a left
knee, the left anchor is inserted into
the right hole (Fig. 5c).
NOTE: The Tibial Cut Guide and
Tubercle Anchor are available in left
and right configurations. If the incorrect
Tubercle Anchor is used, the Cut Guide
will not fully retract into the Adjustable
Rod and the varus/valgus angle of the
tibial cut may be affected.
Insert the correct right or left Tibial
Cut Guide into the Adjustable
Rod and rotate the thumb wheel
counterclockwise until the threads
engage (Fig. 5f).
Continue to rotate the thumb wheel
until the guide is approximately midway
through its range of travel. This will
allow the depth of the tibial resection
to be adjusted after the assembly is
secured to the bone via the Tubercle
Anchor.
Fig. 5f
Fig. 5c
Fig. 5e
Fig. 5d
For a right knee, the right anchor is
inserted into the left hole (Fig. 5d).
Be sure that the etched line on the
side of the Tubercle Anchor aligns with
the corresponding etched line on the
anterosuperior face of the Adjustable
Rod (Fig. 5e).