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NexGen MIS LPS-Flex Mobile Implant System
Surgical Technique
Step One: Resect Proximal Tibia
If preferred, the patella may be resected first. See
Step 12, page 51.
Note:
For EM/IM Surgical Technique, refer to
NexGen Complete Knee Solution Extramedullary/
Intramedullary Tibial Resector Surgical Technique
(97-5997-02 Rev. 1).
The tibial cut is made to ensure proper posterior
slope and rotation, and the resection of the tibia
perpendicular to the mechanical axis. The MIS tibial
cut guide assembly is designed to facilitate tibial
preparation through a shorter incision and without
everting the patella.
Assemble the Guide
The MIS tibial cut guide assembly consists of six
instruments (Figure 1a).
• tibial cut guide (left or right)
• tubercle anchor (left or right)
• MIS tibial adjustable rod
• MIS distal telescoping rod
• ankle bar
• ankle clamp or spring
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 tibial adjustable rod into the
distal telescoping rod (Figure 1b). 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.
Figure 1a
MIS tibial cut guide assembly
Figure 1b
Arrows showing correct alignment
Ankle Bar
Ankle Clamp
or Spring
MIS Tibial
Adjustable Rod
Tubercle Anchor
MIS Distal
Telescoping Rod
Tibial Cut Guide
