| Question |
Answer |
| 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 |
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