Trial Cutting Guide Orientation
(continued)
Scorpio Trial Cutting Guide
Rotation
With the knee flexed at 90°, appropriate
external rotation can be set by
positioning the TCG on the tibial trial
insert so that it is seated with no
varus/valgus tilt. The transepicondylar
axis or Whiteside’s axis can be used to
estimate rotation as well.
A second headless fixation pin should
then be placed in the TCG’s anterior pin
hole to fix the TCG position once
rotation has been established
(Figure 17)
.
Place as many pins as necessary to
securely fix the TCG on the distal femur.
Note: Headless pins may now be
replaced with short headed fixation
pins to facilitate joint reduction.
Note: The TCG trial inserts do not
have a post. This allows for a more
accurate assessment of the
ligaments during trialing.
8
Figure 17
Second Fixation Pin – Rotation
Headed Fixation Pin
7650-1136 1” Headed Pin
7650-1137 3” Headed Pin
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