Biomechanical Evaluation Flashcards
7 cards from real CBP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Biomechanical Evaluation flashcards as text
Why does CBP evaluate posture with the patient standing for radiographs?
Answer: Weight-bearing films show the true loaded spinal alignment
Standing radiographs capture the spine under gravity, which shows the patient's functional alignment.
In CBP terminology, which combination describes a head flexed forward in the sagittal plane?
Answer: +Rx of the head
Flexion of the head is a positive rotation about the x-axis (+Rx) in CBP's right-hand-rule convention.
A patient stands with the rib cage rotated to the right about the vertical axis. Which CBP mirror image component would be used in correction?
Answer: Thoracic Ry rotation to the left
Mirror image treatment rotates the thorax the opposite way, so right Ry is corrected with left Ry.
Which finding in a biomechanical evaluation best suggests that a cervical curve is a buckled or S-shaped pattern rather than a simple loss of lordosis?
Answer: Lordosis in the upper segments with kyphosis in the lower segments
An S-shaped cervical curve has opposite segmental angles in different regions, such as upper lordosis with lower kyphosis.
Why are repeat radiographs important in a CBP biomechanical re-evaluation?
Answer: To measure objective changes in spinal alignment after treatment
Follow-up films objectively measure structural changes in alignment over the course of care.
On a lateral lumbar film, a hypolordotic lumbar spine with anterior thoracic translation would most likely be linked to which compensation?
Answer: Changes in pelvic tilt or knee flexion to maintain balance
Patients with reduced lordosis and forward trunk often compensate by changing pelvic tilt or bending the knees to keep sagittal balance.
Which of the following is the best reason CBP describes posture as translations and rotations of the head, thorax, and pelvis?
Answer: It allows exact, repeatable labeling of displacement for analysis and mirror image correction
Describing posture with defined rotations and translations gives a standard, measurable language that guides mirror image treatment.