pars interarticularis


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Related to pars interarticularis: Ligamentum flavum, spondylolisthesis

pars in·ter·ar·tic·u·la'·ris

Avoid using the simple word pars in the special sense of pars interarticularis.
The segment of bone between the superior and inferior articular facets, especially in the lumbar spine.

pars in·ter·ar·tic·u·la·ris

(pahrz in-tĕr-ahr-tik'yū-lā'ris)
The region between the superior and inferior articulating facets of a vertebra; frequently the site of fracture in spondylolysis.

pars interarticularis

The region between the superior and inferior articulating facets of a vertebra; the region where fracture frequently occurs with spondylolysis.
See also: pars
References in periodicals archive ?
Although reported both as a congenital and an acquired defect, it is generally accepted that spondylolysis is mostly caused due to repeated microtrauma and overuse leading to stress fractures of the pars interarticularis, possibly associated with predisposed anatomical or genetic conditions, while exceptionally it can be the result of acute trauma (Chen et al.
The location of the pedicle and pars interarticularis in the axis.
A bone scan with single photon emission computed tomography (SPECT) images were obtained that same day because of a high index of suspicion for spondylolysis, and revealed uptake in the right pars interarticularis of L5 (Figure 3).
Flexion and Extension (Stress Views) can be taken to show excessive movement across the site of pseudoarthrosis in the pars interarticularis and subluxation of the vertebral body as the patient moves from flexion to extension.
(9-12) The pars interarticularis experiences the highest load stress in all six spinal motions.
Pars interarticularis stress lesions in the lumbar spine of cricket fast bowlers.
(7) It is also important to note that reports within the literature suggest that the repetitive loads causing an acute unilateral spondylolysis may also cause progression to bilateral pars interarticularis fracture leading to vertebral body endplate fracture and early degenerative changes.
Forty five per cent of all stress fractures in a gymnast involve the pars interarticularis, because of considerable stress on the lower back as a result of repetitive flexion, hyperextension, rotation and compressive loading of the spine on landing.
The lateral radiograph of the cervical spine showed the presence of a defect of the pars interarticularis at C6.
Pars interarticularis defect, or spondylolysis, is the most common type of structural defect in adolescent athletes with low back pain.
Traumatic injuries to the pars interarticularis (spondylolysis) also cause back pain.
Spondylolysis, a defect of the pars interarticularis of the neural arch, is a risk factor for low back pain, and has been reported in as high as 47% of young athletes presenting with LBP (37).

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