Spondylolisthesis Flashcards Preview

Spinal Anatomy I - Exam 2 > Spondylolisthesis > Flashcards

Flashcards in Spondylolisthesis Deck (20)
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1
Q

What vertebral condition results in spondylolisthesis?

A

bilateral spondylolysis

2
Q

What is the direction of spondylolisthesis?

A

anterior or forward displacement

3
Q

What is the posterior direction of vertebral slippage called?

A

retrospondylolisthesis or retrolisthesis

4
Q

What are the types/classifications of spondylolisthesis?

A
  • 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
Q

What is the locational bias of type I spondylolisthesis?

A

L5 or upper sacral segments

6
Q

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

A

more frequently the vertebral arch

7
Q

Is the pars interarticularis always affected in type I spondylolisthesis?

A

no

8
Q

What additional conditions are linked to type I spondylolisthesis?

A
  • spina bifida occulta

- nerve root compression of the S1 nerve

9
Q

What are the subtypes of type II spondylolisthesis?

A
  • lytic spondylolisthesis or stress fracture induced spondylolisthesis
  • elongated but intact pars interarticularis spondylolisthesis
  • acutely fractured pars interarticularis spondylolisthesis
10
Q

Which subtype of type II spondylolisthesis is stressed in Spinal?

A

lytic spondylolisthesis or stress fracture induced spondylolisthesis

11
Q

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

A

microfractures as the result of repetitive stress during hyperflexion and rotation

12
Q

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

A

teenagers or young adults

13
Q

Will spondylolysis always result in type II spondylolisthesis?

A

no, particularly in cases of unilateral spondylolysis

14
Q

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

A
  • common in men
  • located at the L5/S1 level
  • demonstrates an increase in sagittal diameter of the spinal canal
15
Q

What conditions are often associated with type III spondylolisthesis?

A
  • osteoarthritis
  • intervertebral disc degeneration
  • ligament laxity
  • articular facet remodeling
16
Q

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

A
  • more common in women
  • particularly at L4/L5
  • demonstrates no change in sagittal diameter of the spinal canal
17
Q

What causes type IV spondylolisthesis?

A

fracture of the neural arch components

18
Q

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

A

no

19
Q

What are the causes associated with type V spondylolisthesis?

A

bone diseases such as Paget disease or osteogenesis imperfecta

20
Q

What is the result of type V spondylolisthesis?

A

bone of the neural arch is lengthened such that listhesis occurs