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Vertex Select Flashcards

1
Q

What is the drilling/screw trajectory for C1 lateral mass?

A

Should be straight or 5-10 degrees convergent medial, and angle cephalad parallel to the underside of the posterior arch.

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2
Q

What is the entry point for C2 pedicel screws?

A

3-4mm above the C2 inferior facet

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3
Q

What is the Entry point for C2 pars screw?

A

3mm superior to the C2/C3 facet joint line and 3mm lateral to the lamina/lateral mass junction.

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4
Q

What is the trajectory for C2 pedicel screws?

A

20-30 degrees medial directed at the central axis and 20-30mm cephalad

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5
Q

What is the trajectory for C2 pars screws?

A

10-15 degrees medial and 35 degrees cephalad (aiming under floro at the C1 tubercle)

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6
Q

What is the entry point for C3-C7 lateral mass screws?

A

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)

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7
Q

What is the trajectory of C3-C7 lateral mass screws?

A

Place perpendicular to the lateral mass then angle 20-30 degrees lateral and 20-30 degrees cephalad

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8
Q

What is the entry point for C3-C7 pedicle screws?

A

Just lateral of the midpoint of the lateral mass and 2-3mm below the inferior facet margin of the cephalad vertebra

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9
Q

What is the trajectory for C3-C7Pedicle screws?

A

25-45 degrees medial towards the midline and angled slightly cephalad

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10
Q

What is the entry point for C1 lateral mass screws?

A

Middle of the junction between C1 Posterior arch and the midpoint of the posterior inferior part of C1 lateral mass.

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11
Q

What size diameter are the Vertex MAS

A

3.5mm, 4.0mm and 4.5mm

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12
Q

What is the length of Vertex 3.5 MAS

A

10mm-34mm (2mm increments)

36mm-40mm (order extra)

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13
Q

What is the length of Vertex 4.0 MAS

A

10mm-34mm (2mm increments)

36mm-52mm (order extra)

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14
Q

What is the length of Vertex 4.5 MAS

A

24-34mm (2mm increments)

10mm-22mm and 36mm-52mm (order extra)

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15
Q

What size diameter of partially threaded MAS are in Vertex

A

3.5mm and 4.0mm

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16
Q

What size length of Vertex PT 3.5mm

A

24mm-34mm (2mm increments)

10mm-22mm and 36mm-40mm (order extra)

17
Q

What size length of Vertex PT 4.0mm

A

24mm-34mm (2mm increments)

18mm-22mm and 36mm-40mm (order extra)

18
Q

What size Rod Crosslinks are in Vertex

A

Small, Medium and Large

19
Q

How many Pans come in Vertex Select

A

Instruments 1&2, MAS Implants and Rod Implants

20
Q

What size tap come in Vertex

A

3.5mm, 4.0mm and 4.5mm

21
Q

What drill guides come in a Vertex

A

14mm and Adjustable (6mm-52mm)

22
Q

What type of driver is used on Vertex Set Screws

A

2.5 Hex

23
Q

What size rods come in Vertex Select

A

3.2mm and 3.5mm Ti

24
Q

What size are the Vertex drill bits

A

2.4mm and 2.9mm

25
Q

What color are the 3.5/4.0/4.5 MAS?

A
  1. 5-Green
  2. 0-Blue (10mm-24mm) Yellow (26mm-52mm)
  3. 5-Purple
26
Q

What color are the 3.5 and 4.0 PT MAS?

A
  1. 5 Green

4. 0 Yellow

27
Q

What is the length of the gold anodized threads on the tap?

A

10mm

28
Q

Vertex MAS allows for how much Medial to Lateral variability of screw placement and rod?

A

7.5mm

29
Q

MAS have how man relief notches allowing for how much angulation?

A

4 notches providing 45 degrees of angulation

30
Q

MAS have how much angulation any direction?

A

30 degrees in any direction

31
Q

Vertex offset dominos and axial dominos allows connections to what size rods?

A

3.2/3.5mm rods to 3.2/3.5mm, 4.5mm and 5.5mm rods

32
Q

What instruments come in Vertex instru #1

A

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

33
Q

What instruments come in Vertex instru #2

A 
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)
34
Q

Vertex Laminar hooks come in what sizes?

A

4.5mm and 6.0mm

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