Cobb angle


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Related to Cobb angle: Risser sign

Cobb method

(kob),
a technique used in scoliosis to determine the degree of curvature of the spine; the measurement is made by drawing a perpendicular to a line drawn across the superior endplate of the upper-end (most tilted) vertebra and the inferior endplate of the lower-end vertebra; the angle formed by the intersection of the two perpendicular lines is the Cobb angle, which is the measure of the magnitude of the curve.

Cobb angle

(kob)
[J.R. Cobb, 20th-cent. U.S. orthopedic surgeon]
The angle formed by the intersection of two lines drawn on a spinal radiograph of a person (usually a child or adolescent) suspected of having scoliosis. One line is drawn parallel to the lower surface of the lowest affected vertebral body, and the other is drawn parallel to the upper surface of the highest affected body. Angles of greater than 10% are diagnostic of scoliosis.

Cobb angle

A measure of the curvature of scoliosis, determined by measurements made on x rays.
Mentioned in: Scoliosis
References in periodicals archive ?
This angle corresponds to the Cobb angle measured by radiography (Figure 2).
The participants were older than 10 years and had Cobb angles ranging from 10 degrees to 25 degrees.
In this case we only performed conventional imaging with the result showing that the Cobb angle proximal thoracic Cobb was 25 degrees, lower end vertebrae (LEV) is at T5, upper end vertebrae (UEV) is at T2, and the apex is at T4.
Inter- and intraobserver reliability assessment of the Cobb angle: manual versus digital measurement tools.
The Cobb angle corresponded to the angular displacement of the linkages relative to the vertical axis.
All patients were either Risser 0 or 1, and all curves measured between 20[degrees] and 45[degrees] on Cobb angle measurement.
The comparison between the flexicurve angle and other methods is not valid, as it is repeatedly smaller than the Cobb angle [23] and the inclinometer angle.
At the 18-month follow-up examination, there were no differences between the groups with regard to clinical recovery, fusion status and Cobb angle.
The Cobb angle is useful in distinguishing between scoliosis and simple asymmetry.
The average Cobb angles at skeletal maturity were 61[degrees]and 35[degrees] for thoracic and lumbar curves, respectively, Thus, the patients were probably similar to most people referred from a family practice, but more detailed information about how these patients were enrolled, socioeconomic status, and other diseases would be valuable.