Transcript Chapter 9

Chapter 9
L-spine
L-Spine
• Largest vertebrae (5)
• _________________weight bearing
– Common site for _________
L-Spine Characteristics
• Smaller ___________ process
• Bulkier ___________ process
• __________________
• Portion of lamina between superior and
inferior articulating process
L-spine Characteristics
• Intervertebral foramen
– ______________
• Zygapophyseal Joints
– ______________
Scotty Dogs
• Shows:
– Transverse process - _________
– Pedicle - Eye
– Superior articulating process - Ear
– Inferior articulating process - _________
– Pars interarticularis – __________
– Zygapophyseal joint – Between ear and leg
Imaging the L-Spine
Routine
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AP
Lateral
RPO
LPO
L-5 S-1 Spot
80kV
40”SID
AP L-Spine
• Pt supine with ____________
– A Pillow can help
– Reduces strain on back
– Places Vertebrae ___________
• CR at _______
– ___________iliac crest
• Collimate
• Suspend respiration
Lateral L-Spine
• Pt in true lateral
– ________for stability
• CR at ______________to spinous process
RPO/LPO
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Rotate pt _____________oblique
CR at _____________to upside ASIS
Collimate
RPO shows ____________
Look for Scotty Dogs
RAO/LAO
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Rotate pt 45° anterior oblique
CR at _____________to upside ASIS
Collimate
RAO shows ____________
Look for Scotty Dogs
L5/S1 spot
• Pt in lateral
• ___________ angle
– Parallel with _____________
• CR ___________iliac crest and 2”
posterior to ASIS