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Comprehensive Overview of Lumbar Spine Anatomy, Imaging Techniques, and Positioning

This chapter delves into the lumbar spine (L-spine), highlighting its five vertebrae and significant weight-bearing role. It covers essential characteristics such as transverse and spinous processes, intervertebral foramen, and zygapophyseal joints. The imaging routine includes AP, lateral, RPO, LPO, and L5-S1 spot views, with specific techniques for reducing back strain and ensuring optimal vertebrae positioning. Key positioning tips are provided, emphasizing patient stability and accurate CR alignment for effective imaging. Understanding these elements is crucial for effective spinal diagnostics and treatments.

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Comprehensive Overview of Lumbar Spine Anatomy, Imaging Techniques, and Positioning

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  1. Chapter 9 L-spine

  2. L-Spine • ______________vertebrae (5) • ____________ and most weight bearing • Common site for ___________

  3. L-Spine Characteristics • ____________ transverse process • _____________ spinous process • _____________________ • Portion of lamina between superior and inferior articulating process l

  4. L-spine Characteristics • Intervertebral foramen • ______________ • Zygapophyseal Joints • ______________

  5. Scotty Dogs • Shows: • Transverse process - ___________ • ___________ - Eye • Superior articulating process - __________ • Inferior articulating process - Leg • Pars interarticularis – __________ • Zygapophyseal joint – Between _________

  6. Imaging the L-Spine Routine • AP • Lateral • RPO • LPO • L-5 S-1 Spot • 80kV • 40”SID

  7. AP L-Spine • Pt supine with knees bent • A __________ can help • Reduces strain on back • Places Vertebrae closer to table • CR at __________ • ___________iliac crest • Collimate • Suspend respiration

  8. Lateral L-Spine • Pt in true __________ • Flex knees for stability • CR at _____________to spinous process

  9. RPO/LPO • Rotate pt_____________oblique • CR at _____________to upside ASIS • Collimate • RPO shows __________________ • Look for Scotty Dogs

  10. RAO/LAO • Rotate pt___________oblique • CR at _____________to upside ASIS • Collimate • RAO shows ______________ • Look for Scotty Dogs

  11. L5/S1 spot • Pt in lateral • ____________angle • Parallel with _____________ • CR ___________iliac crest and ___________to ASIS

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