Spondylolysis Flashcards
What specific parts of a vertebra are seperated as a result of a pars defect?
the vertebral body, pedicle, and articular process are seperated from the other articular process, lamina, and spinous process
What is the incidence of spondylolysis in the general population?
a range from 2.6 % to 10%
Lumbar spondylolysis has not been reported in what groups of individuals?
fetuses, newborns, rarely in children under five years old, patients who have never walked and in non-erect species
Lumbar spondylolysis only been reported in what types of species?
those species that walk erect; humans
What does lumbar spondylolysis appear to be related to?
the uniquely human upright stance or erect posture
What is the gender bias and locational bias associated with lumbar spondylolysis?
men at L5/S1; women at L4/L5
What is the age range typically associated with lumbar spondylolysis?
10-20 year olds
What motion(s) is particularly associated with lumbar spondylolysis?
hyperextension coupled with rotation
What fills the space in a lumbar spondylolysis?
fibrocartilagenous material
What types of neural function(s) have been associated with the spondylolysis ligament?
nociception, neuromodulation and autonomic function
What is the appearance of the lumbar vertebra upon oblique x-ray view?
a Scotty dog
What is the appearance of a pars defect in a lumbar vertebra upon oblique x-ray view?
a collared Scotty dog
What part of a lumbar vertebra forms the neck of a scotty dog?
the pars interarticularis below the superior articular process
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?
the neck of the scotty dog
What part of a lumbar vertebra forms the eye of a scotty dog?
the pedicle
What part of the lumbar vertebra forms the ear of a scotty dog?
the superior articular process
What part of the lumbar vertebra forms the nose of a dog?
the transverse process
What characteristics are associated with cervical spondylosis?
rare, congenital, gender biased toward men, most common at C6 and linked to spondylolisthesis and spina bifida
What ethnic group is associated with a high incidence of sacral spondylolysis?
the native Alaskan (inuit) population
Is sacral spondylolysis the result of congenital conditions, acquired conditions or an age-related conditions?
it seems to be acquired
What gender bias is associated with sacral spondylolysis?
gender biased towards men
What vertebral level is associated with sacral spondylolysis?
most common at S1
What activities are associated with sacral spondylolysis?
kayaking and harpooning
