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DXI exam 1 questions and answers | guaranteed success
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DXI exam 1 questions and answers | guaranteed success
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DXI exam 1 questions and answers |guaranteed success
McGregor's Line and abnormal measurement CORRECT ANSWERS Basilar
invagination if dens is more than 4.5 mm above line
Chamberlains line and abnormal measurement CORRECT ANSWERS basilar
invagination if dens is 3 mm above line
Macraes line normal measurement CORRECT ANSWERS basilar invagination, dens
normally 5 mm below this line
What is Georges line? CORRECT ANSWERS curvalinear line following the posterior
bodies. tests for spondylolithesis and ligament integrity
spinolaminar line CORRECT ANSWERS the joining of the lamina and spinous process.
A line down these junctions
Sella turcica measurement CORRECT ANSWERS 16mm width by 12mm tall
What is the upper limit for the ADI for an adult? a child? CORRECT ANSWERS 3mm
5mm
What is the saggital dimension of the spinal column at c1? C2? C3 and down?
CORRECT ANSWERS 16mm
14mm
12mm
(any smaller and there can be problems)
Where does the spinal cord terminate? CORRECT ANSWERS L1/L2
Os odontoideum CORRECT ANSWERS free floating dens above the anterior arch of
C2. unfused
(contraindication to adjust)
Klipper - Feil syndrome (clinical triad) CORRECT ANSWERS short neck
low posterior hairline
limited range of motion
Os Terminale of Bergmann CORRECT ANSWERS Secondary ossification failed to fuse
with the rest of the dens. (usually just the tip) no clinical significance
Agenesis of the posterior arch of C1 CORRECT ANSWERS Partial or complete
absence of C1 posterior arch. Can develop a megaspinous in C2 to compensate
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