Pars interarticularis

Source: Wikipedia, the free encyclopedia.
Cervical vertebra.

The pars interarticularis, or pars for short, is the part of a vertebra located between the inferior and superior articular processes of the facet joint.[1][2]

In the

congenitally.[1] Bilateral C2 pars fractures are known as a variant of the hangman's fracture
.

On an anterior oblique

lumbar spine, the pars is the neck of the imaginary Scottie dog; the Scottie dog's eye is the pedicle,[3] its hindlegs the spinous process, its nose the transverse process, its ear the superior articular facet and its forelegs the inferior articular facet.[4]

Stress fractures of the pars interarticularis are known to be associated with playing sports such as volleyball, although the mechanism is somewhat unclear.[5] Patients with spina bifida occulta have an increased risk for spondylolysis.[6]

See also

  • Terms for anatomical location

References

  1. ^ .
  2. ^ Mansfield, J. T.; Wroten, Michael (2023). "Pars Interarticularis Defect". StatPearls. StatPearls Publishing. Retrieved 15 October 2023.
  3. PMID 6752854
    .
  4. ^ Capobianco JD. OMM Board Review. Available at: www.md-do.org. Accessed on April 9, 2007.[dead link]
  5. ^ Physical Medicine and Rehabilitation for Stress Fractures at eMedicine
  6. ^ Physical Spondylolysis Imaging at eMedicine

External links