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NexGen MIS LPS-Flex Mobile Implant System
Surgical Technique
Resect the Patella (cont.)
Patellar Reamer Technique –
Total Surfacing Procedure (cont.)
Apply the patellar reamer clamp at a 90° angle to the
longitudinal axis with the patellar reamer surfacing
guide encompassing the articular surface of the
patella. Squeeze the clamp until the anterior surface
of the patella is fully seated against the fixation
plate (Figure 12l). Turn the clamp screw to hold the
instrument in place. The anterior surface must fully
seat upon the pins and contact the fixation plate.
Turn the depth gauge wing on the patellar reamer
clamp to the proper indication for the correct amount
of bone that is to remain after reaming (Figure 12m).
Attach the appropriate size patellar reamer blade
to the appropriate size patellar reamer shaft (Figure
12n). Use only moderate hand pressure to tighten the
blade.
Do not overtighten the blade.
Insert the patellar
reamer shaft into a drill/reamer. Insert the reamer
assembly into the patellar reamer surfacing guide.
Raise the reamer slightly off the bone and bring it up to
full speed. Advance it slowly until the prominent high
points are reamed off the bone. Continue reaming with
moderate pressure until the step on the reamer shaft
bottoms out on the depth gauge wing of the patellar
reamer clamp. Remove the reamer clamp assembly.
Proceed to “Finish the Patella” on page 57.
Figure 12l
Figure 12n
Figure 12m
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