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Related to Pars interarticularis: Ligamentum flavum, spondylolisthesis


1. An amount or level considered to be average; a standard: performing up to par; did not yet feel up to par.
2. An equality of status, level, or value; equal footing: a local product on a par with the best foreign makes.
3. The established value of a monetary unit expressed in terms of a monetary unit of another country using the same metal standard.
4. See par value.
5. Sports The number of golf strokes considered necessary to complete a hole or course in expert play.
tr.v. parred, par·ring, pars Sports
To score par on (a hole or course) in golf.
1. Equal to the standard; normal: a solid, par performance.
2. Of or relating to monetary face value.
par for the course
Usual; typical: Unfortunately, such short-sightedness is par for the course these days.

[From Latin pār, equal, that which is equal; see perə- in Indo-European roots.]


n. L. pars, parte, porción.
References in periodicals archive ?
Spondylolysis is known to be a part of a disease process, which describes a defect in the pars interarticularis of vertebra.
Developmental defect in pars interarticularis, articulation between the upper and lower vertebrae in lower lumbar spine, can be seen approximately in 5% of young adults.
spondyloptosis) Etiologic (Wiltse (3)) classification * Type 1: Dysplastic Congenital defect of the neural arch * Type 2: Isthmic Pars interarticularis defect (3 subtypes) a) Stress (fatigue) fracture (most common type, present in this case) b) Elongated pars c) Acute pars fracture * Type 3: Degenerative Facet joint osteoarthrosis * Type 4: Traumatic Acute fracture of the vertebral arch other than the pars * Type 5: Pathological Insufficiency fracture as a result of bone weakening diseases * Type 6: Iatrogenic Fracture secondary to spinal surgery such as laminectomy Table 2.
5 In Spondylolisthesis there are bilateral fractures in the pars interarticularis of the spine and severe tightness is present in hamstrings group.
X-ray of the lumbosacral spine revealed reduced intervertebral disc space at LV4/ LV5 and LV5/SV1 levels and grade-I spondylolisthesis at LV5/SV1 level with defect in pars interarticularis of LV5 (figure 3).
Plain anterior-posterior and lateral roentgenograms document the amount of vertebral subluxation, they also reveal a pars interarticularis defect if one is present; oblique views have been used to highlight the Scottish Terrier-dog sign.
11] The reason for this is the inherent, high-load biomechanical nature of the bowling action[9,12] which may place undue stress on the pars interarticularis during the delivery stride due to large contralateral lumbar side-flexion motion coupled with large ground reaction forces.
A spondylotic or isthmic defect is the term used to describe a radiolucent gap within the pars interarticularis with sclerosis of the adjacent bone edges.
In the studies carried on the pathomechanism of spondylolytic spondylolisthesis [18], a thin pars model was created by removing half of the elements on one surface of the pars to see the effects of a thin pars interarticularis on lysis and olistheis.
Histomorphic analysis of the development of the pars interarticularis and its association with isthmic spondylolysis.
Essentially, a spondylolysis is a defect in the pars interarticularis, an area of the vertebrae that connects the vertebral facets, or joints that adjoin vertebrae together.
Based on the patient's progressive pain pattern and lack of recovery after 2 weeks rest, a pars interarticularis stress fracture was suspected clinically.

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