Pars interarticularis
From Wikipedia, the free encyclopedia
The pars interarticularis is the part of vertebra located between the inferior and superior articular processes of the facet joint.[1] In the transverse plane, it lies between the lamina and pedicle. It is abnormal in spondylolysis, either due to fracture or congenitally.[2]
On an anterior oblique radiograph of the 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]
[edit] See also
The pars interarticularis, sometimes referred to as pars for short, is the part of vertebra located between the inferior and superior articular processes of the facet joint.[1] In the transverse plane, it lies between the lamina and pedicle. It is abnormal in spondylolysis, either due to fracture or congenitally.[2]
Stress fractures of the pars interarticularis are known to be associated with playing volleyball, although the mechanism is somewhat unclear.
Ref: http://emedicine.medscape.com/article/309106-overview
[edit] References
- ^ Pars+interarticularis at eMedicine Dictionary
- ^ spondylolysis at eMedicine Dictionary
- ^ Macleod S, Hendry G (1982). "Congenital absence of a lumbar pedicle. A case report and a review of the literature". Pediatr Radiol 12 (4): 207–10. PMID 6752854.
- ^ Capobianco JD. OMM Board Review. Available at: [1]. Accessed on: April 9, 2007.
[edit] External links
 |
This musculoskeletal system article is a stub. You can help Wikipedia by expanding it. |
