Week 5 - Lumbar Spine

Question 1

AP Lumbar

Answer 1

Pp: supine; hands on chest
Flex knees to reduce lordosis; or put pillow if they cant flexes
Cr: @ L3
IR
SS: Lumbar bodies, IV disk, spaces, interpediculate spaces; laminae and spionous and transverse processes

Question 2

True Lateral Lumbar

Answer 2

PP:recumbent true lateral;
*Knees flex
*Support head and lower thorax on
pillow so long axis of spine is
horizontal

IR: Center film at level of crest

CR- Perpendicular to midpoint of film (@ crest)

PP: ERECT ; lateral ; wt evenly distributed; arms raised out of way

CR- Horizontal to midpoint of film

SS- Lateral projection of lumbar bodies, their interspaces, spinous processes, lumbo sacral junction and sacrum and coccyx. The last lumbar intervetebral foramina are not usually well visualized because of their oblique direction.

Question 3

Lateral L5 - S1 Spot Film - Lumbar

Answer 3

PP: Pt lateral recumbent, coronal plane passing 1-1/2” posterior to midaxillary line centered to IR

IR: Cassette centered at level of transverse plane passing midway between iliac crests and ASIS

CR- Perpendicular to midpoint of film, or 5 degrees for male and 8 degrees for female if spine cannot be adjusted horizontally, entering midway between level of iliac crest and ASIS

SS- Lateral proj of lumbosacral joint, the lower lumbar vertebrae and the upper sacrum

Question 4

RPO or LPO Oblique -Lumbar

Answer 4

Pp: Pt in same position as for AP lumbar
*Rotate pt 45 degrees for
demonstration of articular facets
and 30 degrees for demonstration
of lumbosacral facet
*Lumbar spine in obl position
overlies the long plane that
passes along the dependent side
2” lateral to the spinous process

IR: Center cassette at level of L3

CR: Perp to midpoint

SS- Oblique projection of lumbar spine and articular facets of the side nearest the film.
* Both sides done for comparison