E-Case report
Spondylolisthesis
T12-iliac in situ fixationAlexandre Delmotte, MD
Pre OP
Clinical Case – Spondylolisthesis
T12-iliac in situ fixation
Neo ADVISE™
Dr. Alexandre Delmotte
Neurosurgeon
Spine department
Clinique de la Sauvegarde
Lyon, France
Planned Surgery:
- General Anestesia
- Posterior fixation T12 – Iliac
- Open surgery, midline
- Neo ADVISE™ application to be used
Pre OP CT sagittal
Intra OP
Posterior fixation with Neo Pedicle Screw System™
Totally 16 pedicle screws to be placed over the 8 vertebral levels T12 – Iliac
OR table prepared & Incision midline
Pedicle preparation and pedicle markers are placed
K-wire placement and removal of the pedicle markers
Pedicle screw placement
Full tightening – ½ turn reverse
Polyaxiality check
All pedicle screws placed in all levels, including the iliac screws (T12-iliac)
Preparing to use the Neo ADVISE™
Change the lighting conditions to increase the contrast and avoid reflections (turn of the OP field lights)
Cleaning the guide towers. Note the use of a fabric to cover the left side whenADVISE™ is used at the right side
Scanning the right side and bending the rod using the visualization provided at the iPad screen
Note that the iliac screw guide is scanned from the same side
Rod insertion
OP field light is turned on again
Checking the seating of the rod into the pedicle screw heads
Set screw placement using the torque limiter
Rod prefixation and hold transfer
Radiographs showing that two of the set screws are not fully seated into the screw head
Final tightening of the fully seated set screws only, and guide towerremoval (1-2)
Further tightening of the previously not fully seated set screws (3) and check before final tightening (4)