DXI DJD ACTUAL EXAM QUESTIONS AND VERIFIED

DXI DJD (ACTUAL / ) EXAM QUESTIONS AND VERIFIED

CORRECT ANSWERS

Where in lumbar spine is most commonly affected by DJD?What are the effects? -----answers----L4/L5 -Osteophytes -Loss of disc height -Facet arthrosis -Vacuum cleft -Spinal stenosis (<12mm)

What can happen to apophyseal joints in lumbar spine? ----- answers----Degeneration. Sagittally oriented facets much more prone to degeneration

What can happen to the IVD in lumbar spine? -----answers--- -Traction osteophytes -> early phase, 2mm from anterior body, horizontal and tapered

-Claw osteophytes -> broader base, vertical orientation, curvilinear, tapered (goes horizontal first then vertically)

-Vacuum cleft -> lucent linear area in disc space from nitrogen gases

On what views will a vacuum cleft be present? -----answers-- --Present on extension films 1 / 2

-Disappears on flexion films

What are the most common locations and features of degenerative spondylolisthesis? -----answers----C7 and L4 most common -Female older than 40 years old

-This is a combination of:

*loss of joint space *loss of disc height *remodeling of facet surfaces to a more sagittal orientation *broadening of pedicle facet angle

If degenerative spondylolisthesis is present in L5/S1 what is the likely cause? -----answers---Pars defect

In the cervical spine, more than ____° or ____mm of movement indicates instability? -----answers---11° or 3.5mm

What are three resulting degenerative changes from spinal stenosis? -----answers----Ligamentum flavum hypertrophy -Osteophytes -Bulging disc

Where is the most common location of synovial cysts? Can you see them on Xray? -----answers----Most common at L4/L5

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