C-spine pathologies and positions
5 Written Questions
5 Matching Questions
- CR angle 20° cephalad
- must use a 45° oblique and 15° cephalad angle
- Lateral projection
- a AP axial techniques w/ patient prone if there is more lordotic curvature
- b Osteoarthritis demo at
- c abnormal or exaggerated convex curvature of the thoracic spine resulting in stooped posture and reduced height. MBCB compression fractures of the anterior edges of the vertebral bodies in osteoporotic pts, particularly postmenopausal women. MBCB poor posture, rickets or other diseases of the spine (Scheuermann's disease)
- d cervical intervertebral foramina visualized only on what position
- e Position preferred to reduce dosage to the thyroid gland
5 Multiple Choice Questions
- Which projections show the dens and C1 centered in the forament magnum
- What SID should be used for obliques and lateral projections
- ostoeporosis may require a ? in factors.
- what is the projection if the entire cervical spine with the mandible blurred. The C1-C2 area will be lighter but still well visualized.
- comminuted fracture - results of axial loading, like landing on one's head or abruptly on one's feet. Anterior and posterior arches of C1 are fractured as the skull slams onto the ring
5 True/False Questions
ankylosing spondylitis → involves spine and larger jts. Predominantly in males 20-40 and results in pain and stiffness that result from inflammation of sacroiliac, intervertebral and costvertebral jts as well as paraspinal calcification, with ossification and ankylosis *union of bones) of the spinal jts.
Dens AP/PA (Fuchs, Judd) → An ? projection will demo Odontoid fracture
osteoporosis → abnormal or exaggerated lateral curvature of the spine - in children b/w agest of 10-14, more common in girls. May require back brace. May complicate cardiac and resp. function. If it is in the lower vertebral column, it may create a tilting of the pelvis with a resultant effect on the lower limbs, producing a limp or uneven walk.
AP "wagging jaw" → An ? projection will demo Odontoid fracture
Hangman's fracture → Compression with hyperflexion in cervical region. The vertebral body is comminuted with triangular fragments avulsed from the anteroinferior border and fragments from the posterior vertebral body displaced into the spinal canal. Neurologic damage (quadriplegia) is a high probability