Ch 9 L Spine, Sacrum & Coccyx

Question 1

Primary curve of the vertebral column

Answer 1

Kyphotic curve

Question 2

Secondary/Compensatory Curve

Answer 2

Lordotic curve

Question 3

Which parts of the vertebral column is kyphotic curve

Answer 3

Thoracic
Pelvic - sacrum/coccyx

Question 4

Which parts of the vertebral column is lordotic curve

Answer 4

Cervical spine
Lumbar spine

Question 5

What is the sacrum/coccyx area also called

Answer 5

Sacrococcygeal

Question 6

What views are a part of the typical lumbar order

Answer 6

Oblique
AP
Lateral
Spot (Lumbosacral junction)

Question 7

Congenital deformity where the lamina fails to unite posteriorly

Answer 7

Spina bifida

Question 8

What do you want to see for an AP L spine

Answer 8

Intervertebral disk spaces.

Question 9

Where do you see Scotty dogs

Answer 9

Oblique L spine

Question 10

What are you looking for in oblique L Spine

Answer 10

Scotty dogs
Zygapophyseal joints

Question 11

What part of the Scotty dog is the superior articular surface

Answer 11

Ear

Question 12

What part of the Scotty dog is the transverse process

Answer 12

Nose

Question 13

What part of the Scotty dog is the pedicle

Answer 13

Eye

Question 14

What part of the Scotty dog is the pars interarticularis

Answer 14

Neck

Question 15

What part of the Scotty dog is the inferior articular process

Answer 15

Foot

Question 16

When the Scotty dog has a collar on an X-ray what does that mean

Answer 16

The pars interarticularis is broken - spondylolysis

Question 17

When taking an AP oblique of L spine, which zygapophyseal joint can you see

Answer 17

The side closest to the IR

Question 18

When taking a PA of the L spine, which side of the zygapophyseal joint can you see

Answer 18

Side furthest away from the IR

Question 19

How much of an angle will a man need for a Spot of L Spine

Answer 19

5° caudal

Question 20

How much of an angle will a woman need for a Spot of L Spine

Answer 20

8° caudal

Question 21

Which views are used for a routine scoliosis

Answer 21

AP T & L Spine

Question 22

What angle does a man need for AP axial SI joints

Answer 22

30° cephalic

Question 23

What angle does a woman need for AP axial SI joints

Answer 23

35° cephalic

Question 24

Which SI joint can you view on the X-rays

Answer 24

The joint that is furthest away from the IR

Question 25

Slipped disk - what is it

Answer 25

Herniated nucleus pulposis - the disc slips and protrudes into the column

Question 26

Where do the spinal nerves and blood vessels exit

Answer 26

Intervertebral foramen

Question 27

Which position is more in line with the divergence for a view of the lumbar

Answer 27

Prone - PA but AP used usually

Question 28

Where do you see the zygapophyseal joint on L Spine Obliques

Answer 28

Right behind the Scotty dogs ear

Question 29

How many vertebra are in the sacrum

Answer 29

5

Question 30

Articulations between articular processes of the vertebral arches

Answer 30

Zygapophyseal

Question 31

What can be used to reduce patient dose

Answer 31

Collimation Breast shields Doing PA projections

Question 32

AP L Spine

Answer 32

- 48” SID - Bend at knees to place feet flat on table - CR 3 fingers (1.5”) above iliac crest - expiration & hold

Question 33

Lateral L Spine

Answer 33

- 48” SID - lay on side with arms at 90° angle with body - CR 3 fingers (1.5”) above iliac crest - expiration & hold

Question 34

Oblique L Spine

Answer 34

- 40” SID - 45° body rotation - CR 2” medial to elevated ASIS & 2” above iliac crest (3 fingers) - expiration & hold

Question 35

Spot L5/S1

Answer 35

- 40” SID - arms 90° from body on side - CR 2” behind ASIS & 1.5” below iliac crest (can have 5-8° caudal angle) - suspend breathe

Question 36

Lateral L Spine vs Cross table lateral L Spine is different how

Answer 36

Cross table lateral the cassette is held to the side of the patient as they lay on their back. The tube is decubitus

Question 37

AP Axial SI Joints

Answer 37

- 40” SID - patient supine - CR 30-35° cephalic angle 1.5” above pubic symphysis - suspend breathing

Question 38

Oblique SI Joints

Answer 38

- 40” SID - elevate the side of interest 25-30° - CR 1” medial to elevated ASIS - suspend breathing

Question 39

AP axial Sacrum

Answer 39

- 40” SID - patient supine - CR 15° cephalic angle & 2” above pubic symphysis - suspend breathing

Question 40

AP axial coccyx

Answer 40

- 40” SID - patient supine - CR 10° caused & 2” above pubic symphysis - suspend breathing

Question 41

Lateral Sacrum

Answer 41

- 40” SID - patient on side - CR 3.5” behind ASIS - suspend breathing

Question 42

Lateral Coccyx

Answer 42

- 40” SID - patient on side - CR 3.5” behind ASIS & 2” down. - suspend breathing