9
Positioning the System
Position the NAVIO™ computer cart so that the
surgeon can clearly see and easily operate the
graphical user interface at all times. The computer
cart should be positioned on the opposite side of
the leg to be operated. The camera stand should
be placed approximately 1.5 m from the surgical
site and 1.8 m - 2.1 m high, also on the opposite
side of the leg to be operated. (Figure 4a)
Position the operative knee into 90º flexion. Use
the laser pointer integrated into the faceplate of the
camera head to direct the laser beam at the knee
joint to be operated.
The camera position may be adjusted at any point
during the operation to meet the needs of the
surgeon, except during determination of the hip
center.
Guidance for camera positioning is provided on
the Camera Orientation Adjustment screen of the
NAVIO intraoperative application.
Once the system is positioned and the patient has
been properly draped and prepped, the sterile
drape should be applied to the monitor, according
to the instructions for use provided by the monitor
drape manufacturer (Figure 5). An additional
drape may be used to cover the computer cart.
Once properly sterile-draped, the computer cart is
backed up to the operating table and the monitor
is rotated to cantilever over the patient, aimed
diagonally at the surgeon’s line of sight (Figure 4a).
Left-knee OR Setup (above)
Right-knee OR Setup (above)
Figure 4a.
Additional Notes
If the sterile reflective markers become soiled
and the marker visibility is compromised (markers
not visible in the Camera Orientation Adjustment
screen or there is flickering of the marker visibility
indicator), replace the markers on the affected
tracker. Use clean, sterile gloves to handle the
markers. Support the tracker frame behind the
marker attachment point. Avoid transferring force
to the entire tracker frame.
After handpiece calibration/homing is completed,
separate the handpiece from the point probe.
Hold the point probe close to the back for easier
detachment (Figure 4b).
Figure 4b.
