12
Registrations
Register Home
Place tip of probe into hole of the pelvic base and press center button.
WARNING:
Register Table
Position operating table horizontally.
Verify the sagittal plane of pelvis is level.
Move probe, with reference sensor attached, to align parallel long axis of body
with the tip pointing towards the feet.
Press the center button to register.
Correct patient positioning is essential for accurate navigation. The system calculates cup angles based on the assumption
that the pelvis is accurately positioned during table registration.
Table registration must be completed prior to dislocating hip, as torque applied during dislocation can move pelvis away
from the correct initial alignment.
Pelvic Base cannot be moved after this point.
Pelvic Bracket angle to the base cannot be adjusted after this point.
If fixation pins become loose, navigation must be aborted, since table registration is no longer valid.
Registering Femur
Make the standard incision and identify a point along greater
trochanter to insert a registration marker for femoral
registration. Insert femur registration marker.
Open laser shutter, place the vertical target on the thigh plate and
align the leg so that the laser projects onto the lower part of the
target.
Trace the crosshair pattern with a marking pen.
While laser projection is aligned with laser marking, hold the
probe tip in the center hole of the marker and press the center
button to register the femur.
Close shutter on the laser and remove vertical laser target.
TIPS
:
1.
When marking the vertical target and registering the femur
registration marker, position the thigh in neutral flexion,
abduction and rotation.
2.
Stack legs vertically atop each other in a stable position which
will be easy to return to prior to registration.
WARNING:
If laser module moves, leg length must be aborted since leg alignment cannot be replicated.
Discontinue use if unable to verify thigh plate is aligned with original marking on skin or if unable to return it to
original position.
Prepare Acetabulum
NOTE
: Once registration is complete, proceed to dislocate the hip, resect the femoral head, and prepare the
acetabulum as per the implant manufacturer’s technique.
H4
H3
Register Home
Place probe tip in hole
of pelvic base
Keep pelvic base locked
throughout procedure
Register Table
Verify sagittal plane of pelvis is level and
align probe with coronal plane