9
Tibial Cones Surgical Technique
continued
Figure 22
Tray
Counterbore
Coupler
Counterbore
Figure 23
Figure 24
Figure 25
Cone Sizing
1. Invert and place the minimum size Tibial
Cone Broach that covers the defect over the
Reamer shaft (Figure 22).
Tip: Ensure the anterior mark on the Cone
Broach faces anterior (Figure 22a).
2. With the minimum size Tibial Cone Broach
inverted, assemble the Cone Handle with the
desired Offset Sleeve over the Reamer. Position
the inverted broach assembly in the desired
orientation (Figure 23).
3. If the selected minimum size Tibial Cone
Broach with the desired offset covers or
is smaller than the defect, proceed with
sequential broaching using the selected Cone
Offset Sleeve and Cone Handle Assembly.
If the cone size is larger than desired or than
the anatomy allows, reassess tray coverage
with a reduced amount of offset and repeat
the Minimum Cone Size evaluation and
subsequent Cone Sizing steps.
4. Once a minimum Tibial Cone size, including
an offset amount and orientation, are
determined, complete the LEGION™ Counterbore
steps from the standard LEGION RK or
LEGION HK surgical technique (Figures 24
and 25).
a
