Spine

Question 1

Lateral Cspine Criteria

Answer 1

• SI’d articular pillars and open zygopophyseal joints
• superimposition of posterior vertebral bodies
• mandible off spine
• open intervertebral spaces

Question 2

Answer 2

• rotation issue: posterior borders arent aligned
• tilt issues: double lines at zygo joints
• need to do swimmers: cant see C7 and T1

Question 3

Answer 3

• rotation and tilt issue
• swimmers not needed (fusion of C6/C7)

Question 4

Answer 4

• chin on mandible
• rotation and tilt
• would need swimmers or more relaxed shoulders

Question 5

Answer 5

slight rotation and tilt at the top

Question 6

Oblique C- Spine criteria

Answer 6

• uniform open intervertebral foramina
• open disc spaces (angle)
• zygos should look like stacked shingles
• opposite pedicles near anterior vertebral body

Question 7

What is the oblique and whats wrong with it

Answer 7

• RPO/LAO
• too steep of an oblique (pedicles too close to the middle)
• demonstrates left intervertebral foramina (they arent uniform)

Question 8

Answer 8

• LPO/RAO
• not enough oblique/forminas arent open
  demonstrates right foramina

Question 9

Answer 9

• RPO/LAO
• good oblique but didnt turn the head lateral (mandible still on image)

Question 10

Answer 10

• LPO/RAO
  not enough of an oblique
  didnt turn head lateral

Question 11

Answer 11

• didnt use an angle to open disc spaces

Question 12

AP Axial Cspine criteria

Answer 12

• occipital bone and mandible lined up (extension)
• spinous process midline (rotation)
• open vertebral discs (angle)
• all of C3 is visible

Question 13

Answer 13

• need to lift the chin more
• all of C3 is demonstrated

Question 14

Answer 14

• need to lower chin
• good angle

Question 15

Answer 15

• need to increase the cephalad angle
• will move chin inline with occipital aswll

Question 16

Odontoid Image Criteria

Answer 16

• equal distance between dens and lateral masses
• upper incisors aligned with base of skull
• must see lateral edges of C1 and C2

Question 17

Answer 17

• need to tuck chin
• nose is slightly rotated to the right

Question 18

Answer 18

• extend the neck and rotate nose to the left

Question 19

Answer 19

lift chin and rotate nose to the left

Question 20

Answer 20

tuck chin and rotate nose to the left

Question 21

Answer 21

tuck chin and rotate nose to the right

Question 22

AP Lumbar Spine

Answer 22

• spinous processes are midline
• open disc spaces
• T10-S1 included

Question 23

Answer 23

pelvis is rotated in an LPO position

Question 24

Answer 24

pelvis is slightly LPO and knees could be flexed to flatten spine out

Question 25

Lateral Lumbar Spine Criteria

Answer 25

- open disc spaces and foramina (angle) - Superimposed pedicles (rotation)

Question 26

SID and CR placement for lateral Lumbar spine with curve

Answer 26

**always direct the CR into the concave side if a curve is present and use short SID for beam divergence**

Question 27

Answer 27

increase caudad angle used to superimpose vertebral body edges - right 12th rib is more anterior thus need to rotate right side posteriorly

Question 28

Answer 28

- not perp to spine - cant tell how to fix because cant see ribs **cert exam : build up top of spine on sponge**

Question 29

Oblique Lumbar Spine Criteria

Answer 29

- open disc spaces/zygos - pedicles seen halfway between mid and anterior vertebral bodies - zygos in middle of the body (too anterior = underrotated)

Question 30

Answer 30

- RPO position - over rotated : zygos are too posterior (more than 45 RPO) - clipping L1

Question 31

Answer 31

LPO with under rotation

Question 32

Answer 32

LPO with over rotation

Question 33

Answer 33

- good until L5 where pelvis is under rotated - need to make sure shoulders are less than 45 and pelvis is 45

Question 34

Answer 34

over rotated LPO