smith&nephew LEGION Cones, Хирургическая техника

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10
Figure 32
a
Figure 27
Figure 26
Sequential Broaching
1. With the LEGION™ Reamer (or Trial Stem and Trial
Stem Connection Rod) remaining in the canal,
place the Cone Handle with appropriate offset
sleeve assembled with the 18mm Tibial Broach
of the desired length, ‘Short’ or ‘Long’, over the
shaft of the Reamer (Figure 26).
Note: A maximum of 25° of rotational freedom
is provided between the Tibial Cone and the
Tibial Tray fins/keel with no offset. Using offsets
reduces the amount of rotational freedom.
2. With attention to rotational alignment, lightly
impact the Cone Handle Assembly with a mallet
until the desired depth is reached (Figure 27).
Caution: If excessive force is used, fracture
may occur. It is advised to broach in and out
to relieve stresses on the bone.
Note: The depth should be at or below the cut
tibial surface including below any additional hemi
augments planned.
Tip: 5mm depth marks are provided on the Cone
Handle for additional depth referencing against
planned augment thickness (Figure 27a).
3. While utilizing the same alignment orientation as
the previous broach, sequentially broach with the
next larger size until the desired size and stability
is reached.