Vertex Select Flashcards
What is the drilling/screw trajectory for C1 lateral mass?
Should be straight or 5-10 degrees convergent medial, and angle cephalad parallel to the underside of the posterior arch.
What is the entry point for C2 pedicel screws?
3-4mm above the C2 inferior facet
What is the Entry point for C2 pars screw?
3mm superior to the C2/C3 facet joint line and 3mm lateral to the lamina/lateral mass junction.
What is the trajectory for C2 pedicel screws?
20-30 degrees medial directed at the central axis and 20-30mm cephalad
What is the trajectory for C2 pars screws?
10-15 degrees medial and 35 degrees cephalad (aiming under floro at the C1 tubercle)
What is the entry point for C3-C7 lateral mass screws?
1mm medial to the center of the lateral mass (outlined by box method:superior to inferior facet join and lamina/lateral mass junction to lateral edge of the lateral mass)
What is the trajectory of C3-C7 lateral mass screws?
Place perpendicular to the lateral mass then angle 20-30 degrees lateral and 20-30 degrees cephalad
What is the entry point for C3-C7 pedicle screws?
Just lateral of the midpoint of the lateral mass and 2-3mm below the inferior facet margin of the cephalad vertebra
What is the trajectory for C3-C7Pedicle screws?
25-45 degrees medial towards the midline and angled slightly cephalad
What is the entry point for C1 lateral mass screws?
Middle of the junction between C1 Posterior arch and the midpoint of the posterior inferior part of C1 lateral mass.
What size diameter are the Vertex MAS
3.5mm, 4.0mm and 4.5mm
What is the length of Vertex 3.5 MAS
10mm-34mm (2mm increments)
36mm-40mm (order extra)
What is the length of Vertex 4.0 MAS
10mm-34mm (2mm increments)
36mm-52mm (order extra)
What is the length of Vertex 4.5 MAS
24-34mm (2mm increments)
10mm-22mm and 36mm-52mm (order extra)
What size diameter of partially threaded MAS are in Vertex
3.5mm and 4.0mm
What size length of Vertex PT 3.5mm
24mm-34mm (2mm increments)
10mm-22mm and 36mm-40mm (order extra)
What size length of Vertex PT 4.0mm
24mm-34mm (2mm increments)
18mm-22mm and 36mm-40mm (order extra)
What size Rod Crosslinks are in Vertex
Small, Medium and Large
How many Pans come in Vertex Select
Instruments 1&2, MAS Implants and Rod Implants
What size tap come in Vertex
3.5mm, 4.0mm and 4.5mm
What drill guides come in a Vertex
14mm and Adjustable (6mm-52mm)
What type of driver is used on Vertex Set Screws
2.5 Hex
What size rods come in Vertex Select
3.2mm and 3.5mm Ti
What size are the Vertex drill bits
2.4mm and 2.9mm
What color are the 3.5/4.0/4.5 MAS?
- 5-Green
- 0-Blue (10mm-24mm) Yellow (26mm-52mm)
- 5-Purple
What color are the 3.5 and 4.0 PT MAS?
- 5 Green
4. 0 Yellow
What is the length of the gold anodized threads on the tap?
10mm
Vertex MAS allows for how much Medial to Lateral variability of screw placement and rod?
7.5mm
MAS have how man relief notches allowing for how much angulation?
4 notches providing 45 degrees of angulation
MAS have how much angulation any direction?
30 degrees in any direction
Vertex offset dominos and axial dominos allows connections to what size rods?
3.2/3.5mm rods to 3.2/3.5mm, 4.5mm and 5.5mm rods
What instruments come in Vertex instru #1
Adjustable/Universal drill guide
Universal and Ratcheting Handle
Feeler,Gear Shift,Awl,Bone Reamer
Depth Gauge, Tap Sleeve and Taps (3.5/4.0/4.5)
Quick release/threaded driver and 4.0 External Hex
What instruments come in Vertex instru #2
Laminar Elevator and Hook Holder Rod Cutter, bender and template Rod gripper and head turner Rod reducers, coronal and insitu benders Compressor and distractor 2.5 hex/2.5 torque driver (MAS set screw), counter torqu 4.0 external driver/4.0 torque driver Lock nut driver (crosslink middle nut)
Vertex Laminar hooks come in what sizes?
4.5mm and 6.0mm
