Spondylolisthesis Flashcards Preview

Spinal Anatomy I - Exam 2 > Spondylolisthesis > Flashcards

Flashcards in Spondylolisthesis Deck (20):
1

What vertebral condition results in spondylolisthesis?

bilateral spondylolysis

2

What is the direction of spondylolisthesis?

anterior or forward displacement

3

What is the posterior direction of vertebral slippage called?

retrospondylolisthesis or retrolisthesis

4

What are the types/classifications of spondylolisthesis?

- type I spondylolisthesis (dysplastic spondylolisthesis, congenital spondylolisthesis)
- type II spondylolisthesis (isthmic spondylolisthesis)
- type III spondylolisthesis (degenerative spondylolisthesis)
- type IV spondylolisthesis (traumatic spondylolisthesis)
- type V spondylolisthesis (pathologic spondylolisthesis)

5

What is the locational bias of type I spondylolisthesis?

L5 or upper sacral segments

6

What is the location of the defect associated with type I spondylolisthesis?

more frequently the vertebral arch

7

Is the pars interarticularis always affected in type I spondylolisthesis?

no

8

What additional conditions are linked to type I spondylolisthesis?

- spina bifida occulta
- nerve root compression of the S1 nerve

9

What are the subtypes of type II spondylolisthesis?

- lytic spondylolisthesis or stress fracture induced spondylolisthesis
- elongated but intact pars interarticularis spondylolisthesis
- acutely fractured pars interarticularis spondylolisthesis

10

Which subtype of type II spondylolisthesis is stressed in Spinal?

lytic spondylolisthesis or stress fracture induced spondylolisthesis

11

What is the cause most frequently given for type II spondylolisthesis?

microfractures as the result of repetitive stress during hyperflexion and rotation

12

What is the age group typically associated with type II spondylolisthesis?

teenagers or young adults

13

Will spondylolysis always result in type II spondylolisthesis?

no, particularly in cases of unilateral spondylolysis

14

What gender bias, locational bias, and spinal canal dimensions are associated with type II spondylolisthesis?

- common in men
- located at the L5/S1 level
- demonstrates an increase in sagittal diameter of the spinal canal

15

What conditions are often associated with type III spondylolisthesis?

- osteoarthritis
- intervertebral disc degeneration
- ligament laxity
- articular facet remodeling

16

What gender bias, locational bias, and spinal canal dimensions are associated with type III spondylolisthesis?

- more common in women
- particularly at L4/L5
- demonstrates no change in sagittal diameter of the spinal canal

17

What causes type IV spondylolisthesis?

fracture of the neural arch components

18

Is there a gender, locational, or age bias associated with type IV spondylolisthesis?

no

19

What are the causes associated with type V spondylolisthesis?

bone diseases such as Paget disease or osteogenesis imperfecta

20

What is the result of type V spondylolisthesis?

bone of the neural arch is lengthened such that listhesis occurs