27
Short
Long
a
Figure 63
Variable Positioning of Tibial Cones without Offset Couplers
continued
Figure 62
Initial Ream
1. With the LEGION™ Reamer remaining in the canal,
place the Initial Cone Reamer over the shaft of
the Reamer (Figure 62) and ream to the short or
long depth markings depending on Tibial Cone
length desired.
Note: The depth should be below any additional
hemi-augments planned.
Note: There are two lengths of Tibial Cones, Short
(25mm) and Long (40mm). The minimum depths
are represented in Figure 62 on the Initial Reamer.
Cone Sizing
1. Invert and place the minimum size Tibial Cone
Broach that covers the defect over the Reamer shaft.
Tip: Ensure the anterior mark on the Cone Broach
faces anterior (Figure 63a).
2. Referencing the chart, choose the correlating
Variable Sleeve relative to the desired Stem size.
3. Variably position the inverted broach using the
correlating Cone Variable Sleeve (Figure 63).
4. 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.
Note: The labeled sizes of the LEGION Cones
are the functional internal diameters (ID). The IDs
are relative to the functional diameters of LEGION
Press-Fit Stems including the 1mm diametrically
oversized cutting flutes. For example, a size 22
ID LEGION Tibial Cone can accept up to a 22mm
LEGION Press-Fit Stem without offset.
Note: To calculate the maximum positional freedom
for the estimated Cone size needed, subtract the
Stem size or 18 (whichever is greater) from the
desired Cone’s functional internal diameter.
Example: A 15mm Reamer (use the greater of
Stem size or 18mm) and a 22 cone equates to
22-18 = 4mm maximum Variable Sleeve.
Stem Diameter
<18
18
20
22
24
Va
ria
ble
Slee
ve
0
18
18
20
22
24
2mm
20
20
22
24
26
4mm
22
22
24
26
28
6mm
24
24
26
28
30
Minimum Tibial Cone Size
