18 Questions
What is the primary objective of spinal orthoses?
To control pain by limiting motion and unloading spinal structures
Which of the following is NOT a key design requirement for spinal orthoses to achieve their primary goal?
Increase muscle strength around the spine
For a single-level thoracolumbar compression fracture with up to 50% loss of segmental stiffness, what type of orthotic is typically recommended?
Jewett-style TLSO
In cases where segmental stiffness loss exceeds 85% for a thoracolumbar compression fracture, what type of orthotic is typically recommended?
Total-contact polymer TLSO
What is the primary purpose of using a spinal orthosis for a thoracolumbar burst fracture?
To control pain by limiting motion and unloading spinal structures
Which of the following is NOT a key consideration in determining the appropriate orthotic management for a spinal injury?
Intended outcome
Which type of spinal fracture is characterized by impaction of the anterior aspect of the vertebral body caused by flexion and compression of the affected segments?
Compression fracture
What is the mechanism of injury for a Hangman fracture (C2, traumatic spondylolisthesis)?
Hyperextension followed by distraction
Which type of spinal fracture may result from a shoulder belt injury?
Unilateral facet joint dislocation caused by lateral flexion and rotation
What is the Denis classification for compression fractures of the thoracic and thoracolumbar spine?
Type I, II, III
Which type of spinal fracture is caused by a combination of shear and compression loading from a blow to the back of the head?
Odontoid fracture
What type of spinal instability is characterized by spondylolisthesis in the lumbar spine?
Spondylolisthesis
What is the primary purpose of orthoses prescribed for low-back pain?
To reduce excessive trunk motion, particularly axial rotation
Which of the following statements is true regarding the effects of lumbar supports on trunk motion?
Lumbar supports reduce trunk motion in flexion, extension, and lateral bending, but not in rotation
What is the primary rationale for using lumbosacral orthoses in reducing low-back pain?
Both A and C
How do lumbar corsets and braces assist in unloading the spinal column?
By compressing the abdomen and converting the trunk into a semi-rigid cylinder
Which of the following statements is true regarding the effectiveness of orthoses in patients with low-back pain?
Gross motion restrictions are more important than intersegmental motion restrictions
How do external lumbar supports affect the intervertebral mobility of the lower lumbar spine?
They have no stabilizing effect on the intervertebral mobility
Learn about the role of orthoses in preventing back injuries by restricting excessive trunk motion. Explore how external lumbar support can reduce low-back pain by limiting gross motions of the trunk.
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