CBP CBP Radiographic Analysis 1

Question 1

Which radiographic projection is the standard view used in CBP to measure cervical lordosis?

Accepted Answer

Lateral cervical view in neutral position

Answer

CBP uses the neutral lateral cervical radiograph as the standard projection for measuring cervical lordosis with the posterior tangent or Cobb angle method.

Question 2

In CBP radiographic analysis, what does a positive Cobb angle measurement indicate when applied to the lumbar spine?

Accepted Answer

The degree of sagittal curvature (lordosis or kyphosis) measured between the superior endplate of L1 and the inferior endplate of L5

Answer

In the lumbar sagittal plane, the Cobb angle between L1 superior endplate and L5 inferior endplate quantifies the lumbar lordosis arc, a key CBP measurement.

Question 3

What is the primary purpose of a full-spine AP radiograph in CBP evaluation?

Accepted Answer

To measure and document coronal plane (frontal) spinal alignment and detect lateral translations or scoliosis

Answer

The full-spine AP view allows CBP clinicians to assess global coronal balance, detect lateral translations, quantify any scoliotic curves, and evaluate pelvic levelness.

Question 4

In CBP, what is the 'posterior tangent method' used to measure?

Accepted Answer

Individual vertebral body angular position relative to a true vertical or horizontal reference on lateral radiographs

Answer

The posterior tangent method draws a line along the posterior surface of each vertebral body, then measures its angle relative to a reference line to quantify segmental angulation.

Question 5

Which radiographic landmark is used to establish the horizontal reference line in a standing lateral lumbar radiograph during CBP analysis?

Accepted Answer

The S1 superior endplate or sacral base

Answer

The S1 superior endplate (sacral base) is the foundational horizontal reference for lumbar sagittal analysis in CBP, as it defines the platform upon which the lumbar spine sits.

CBP - Certified Biophysics Chiropractic Practice Test

CBP - Certified Biophysics Chiropractic Practice Test

CBP CBP Radiographic Analysis 1