DI Review 2

  1. CT bone density
    • 1. loss of density
    • 2. osteophytes
    • 3. reactive sclerosis (certain CAs)
    • 4. appearance of trabeculae – thin, coarsened, smudged
  2. CT Cartilage
    • Joint space
    • Subchondral bone (osteophytes)
    • Epiphyseal plate fx
  3. Bone scan advantages and disadvantages
    • High sensitivity, low specificity
    • Poor anatomy
    • Radiation
  4. Advantages of US
    • 1. low cost
    • 2. portable
    • 3. can image w hardware
    • 4. can do w/ dynamic movement
    • 5. can compare sides
  5. Disadvantages of US
    • 1. Operator dependent
    • 2. Bad of obese pts
    • 3. *** cannot cross bone (cant see in SC)
    • 4. time consuming
  6. Radiograph cartilage
    Loss of disc space
  7. Radiograph soft tissue
    • Lung cancer
    • Paravertebral fort tissue widening
    • Retropharyngeal soft tissue
  8. Spinal 5 step check list
    • 1. count the vertebrae
    • 2. alignment: 4 lateral lines
    • 3. irregularity of vertebral body (schmorl node, fx, OP, osteophyte)
    • 4. is the disc space maintained? Usual tissue densities?
    • 5. examine the parts of the vertebrae
  9. examine the parts of the vertebrae
    • 1. vertebral body
    • 2. pedicle and laminate
    • 3. pars interarticularis
    • 4. superior/inferior facets
    • 5. DJD
    • 6. SP, TP
    • 7. intervertebral disc space/foramen
  10. High risk factors that mandates a radiograph
    • 1. age >= 65
    • 2. Dangerous mechanism
    • ----fall down stair
    • ----axial loading
    • ----high speed auto accident
    • ----RV
    • ----bike collision
    • 3. Paraesthesia C/S stenosis
    • ----compress SC
    • ----B/B changes
    • ---- weakness, tingling in legs
  11. Low risk factors for radiograph
    • 1. simple rear end MVA (whiplash)
    • 2. sitting position in ED
    • 3. ambulatory at any time
    • 4. delayed onset of neck pain
    • 5. absence of midline C/S tenderness
  12. Odontoid fx
    • Due to violent upper C/S flexion
    • Possible breach of transverse or alar ligaments
    • May demonstrate torticollis, hoarseness, c2 NR
    • Odontoid view radiograph
  13. Lateral recess stenosis
    • Stenosis at beginning of foramen
    • LMN symptoms, many have weakness
  14. Cervical myelopathy causes
    • Spondylitis (arthritis)
    • Spondylolisthesis
    • Disc lesion
    • Tumor
    • Congenital
    • Hypertrophy of ligamentum flavum or post long lig
Author
jld15
ID
321533
Card Set
DI Review 2
Description
DI Review 2
Updated