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adv pos scol flex ex
advanced positioning scoliosis, lumbar flexion and extension
Question | Answer |
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What is lumbar spine fusion radiography used for? | to determine if there is motion in the area of a spinal fusion, and evidence of structural change with scoliosis, and localization of herniated disks |
When is lumbar spine fusion performed? | 6 months after surgery |
How do we achieve maximum right lumbar bending on a radiograph? | pt. crosses the left leg over the right, move both heels toward the side that is flexed and immobilize with sandbags and move both shoulders laterally toward the flexed side. |
CR entry for AP L-spine with R or L bending | perpendicular to L3 (1 1/2” above the crest) |
Lateral hyperflexion and hyperextension spines are used to: | determine if motion is present in an area of spinal fusion and localize herniated disks |
Lateral hyperflexion L-spine pt. position | pt. leans backward as much as possible, extending limbs as much as possible |
Lateral hyperextension L-spine pt. position | pt. leans forward and draws the thighs up forcibly |
CR entry for hyperflexion/extension L-spine | area of spinal fusion or to L3 |
3 main patient prep points for scoliosis radiography | remove shoes, close collimation, PA projection |
Where is the IR lined up for scoliosis radiography? | BOF to include 1” of iliac crests |
First scoliosis radiograph | pt. stands normally in front of IR, checks the spinal curvature |
Second scoliosis radiograph | distinguishes the primary from the secondary curvature – elevate pt. foot on the convex side of the primary curve 3-4” |
CR entry for scoliosis | entering to the midpoint of the cassette |
T-spine scoliosis films include what projections? | PA erect, PA prone, PA prone R lateral flexion, PA prone L lateral flexion |