Spondylosis, Spondylolysis, Spondylolisthesis Flashcards
What is the definition of spondylosis?
A vertebral condition
What is the definition of spondylolysis?
A vertebral separation or vertebral cleavage
What is the definition of spondylolisthesis?
A vertebral slippage
What is the location of spondylolysis that will be stressed in Spinal II?
A separation along the pars interarticularis (defect in the part interarticularis or pars defect)
What is the incidence of spondylolysis in the general population?
A range of 2.6% to 10%
What is the geographic or ethnic bias for a higher incidence of spondylolysis?
The native Alaskan (Inuit) population
What does lumbar spondylolysis appear to be related to?
The uniquely human upright stance or erect posture
Lumbar spondylolysis is associated with what characteristics?
Familial association, spina bifida occulta, racial/ethnic disparities, gender and locational bias, youthful incidence and activities requiring repetitive stress on the spine
What is the age range typically associated with lumbar spondylolysis?
10-20 year olds
What activities are particularly stressful at the pars interarticularis of lumbar vertebrae?
Gymnastics, dance, soccer
What fills the space in a lumbar spondylolysis?
Fibrocartilagenous material
What name has been given to the material filling the space in a lumbar spondylolysis?
Spondylolysis ligament
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 collard Scotty dog
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 a lumbar vertebra forms the ear of the Scotty dog?
The superior articular process
What part of a lumbar vertebra forms the nose of a Scotty dog?
The transverse process
What characteristics are associated with cervical spondylolysis?
Rare, congenital, gender biased toward men, most common at C6 and linked to spondylolisthesis and spina bifida
What characteristics are associated with sacral spondylolysis?
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 and linked to activities such as kayaking and harpooning
Identify all names given to type I spondylolisthesis.
Dysplastic spondylolisthesis, congenital spondylolisthesis
What is the location bias of type I spondylolisthesis?
L5 or upper sacral segments
What additional conditions are linked to type I spondylolisthesis?
Spina bifida occulta and nerve root compression of the S1 nerve
What gender bias, locational bias, and spinal canal dimensions are associated with type II spondylolisthesis?
Isthmic spondylolisthesis is common in men, located at L5/S1 level and demonstrates an increase in sagittal diameter of the spinal canal
What is the gender bias, locational bias, and spinal canal dimension changes often associated with type III spondylolisthesis?
Degenerative spondylolisthesis is more common in women, particularly at L4/L5, and demonstrates no change in sagittal diameter of the spinal canal
What causes type IV spondylolisthesis?
Fracture of the neural arch components
What are the cause(s) associated with type V spondylolisthesis?
Bone diseases such as Paget disease or osteogenesis imperfecta
