Spondylolysis

Question 1

What is the location of spondylolysis that will be stressed in Spinal?

Answer 1

A separation along the pars interarticularis (defect in pars interarticularis or pars defect)

Question 2

What is the incidence of spondylolysis in the general population?

Answer 2

A range of 2.6% to 10%

Question 3

What is the geographic or ethnic bias for a higher incidence of spondyloysis?

Answer 3

Native Alaskan (inuit) population

Question 4

What does lumbar spondylolysis appear to be related to?

Answer 4

The uniquely human upright stance or erect posture

Question 5

Lumbar spondylolysis is assoicated with what characteristics?

Answer 5

Familial association
Spina bifida occulta
Racial/ ethnic disparities
Gender and locational bias
Youthful incidence
Activities requiring repetitive stress on the spine

Question 6

What is the age range typically associated with lumbar spondylolysis?

Answer 6

10-20 yrs old

Question 7

What activities are particularly stressful at the pars interarticularis of lumbar vertebrae?

Answer 7

Gymnastics, dance, soccer

Question 8

What fills the space in a lumbar spondylolysis

Answer 8

Firbrocartilagenous material

Question 9

What name has been given to the material filling the space in a lumbar spondylolysis?

Answer 9

Spondylolysis ligament

Question 10

What types of neural functions have been associated with teh spondylolysis ligament?

Answer 10

Nociception, neuromodulation and autonomic function

Question 11

What is the appearance of the lumbar vertebra upon oblique x-ray view?

Answer 11

A Scotty Dog

Question 12

What is the appearance of a spondylolysis in a lumbar vertebra upon oblique x-ray?

Answer 12

A collared Scotty Dog

Question 13

In an oblique x-ray, spondylolysis below the superior articular process of a lumbar pars interarticularis is associated with what part of the Scotty dog?

Answer 13

the neck of the Scotty dog

Question 14

What part of a lumbar vertebra forms the ye of a Scotty dog?

Answer 14

The pedicle

Question 15

What part of a lumbar vertebra forms the ear of a Scotty dog?

Answer 15

The superior articular process

Question 16

What part of a lumbar vertebra forms the nose of a Scotty dog?

Answer 16

The transverse process

Question 17

What characteristics are associated with cervical spondylolysis?

Answer 17

Rare
Congenital 
Gender biased toward men
Most common at C6
Linked to spondylolisthesia and spina bifida

Question 18

What characteristics are associated with sacral spondylolysis?

Answer 18

Rare in the general population
Within typical percents in the native Alaskan (Inuit) population
Seems to be acquired
Gender biased toward men
Most common at S1
Linked to activities such as kayaking and harpooning