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ProDisc L: Motion Preservation Device

1. Welcome High School Students!!!. ProDisc L: Motion Preservation Device. Performed by: Michael Janssen, DO August 20, 2007. The Spine. 7 Cervical 8Nerve Roots 12 Thoracic 12 Nerve Roots 5 Lumbar 5 Nerve Roots. The Lumbar Spine. Axial View of a Vertebra. Disc Anatomy.

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ProDisc L: Motion Preservation Device

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  1. 1 Welcome High School Students!!! ProDisc L: Motion Preservation Device • Performed by: • Michael Janssen, DO • August 20, 2007

  2. The Spine • 7 Cervical • 8Nerve Roots • 12 Thoracic • 12 Nerve Roots • 5 Lumbar • 5 Nerve Roots

  3. The Lumbar Spine

  4. Axial View of a Vertebra

  5. Disc Anatomy

  6. MRI Imaging (Healthy/DDD) Notice the darker than normal disc space. This is characteristic of a disc with DDD.

  7. ProDisc L • Motion Preservation System • Treat DDD (Degenerative Disc Disease): • L3-S1 • Intended to: • Remove diseased disc • Reduce discogenic pain • PRESERVE MOTION IN DISC • Superior & Inferior Plate • Cobalt Chrome Alloy • Central keel: fixation security • Polyethylene Inlay • Ultra high polyethylene • Developed by Synthes

  8. Degenerative Disc Disease (DDD) • Breakdown and deterioration of intervertebral disc • Loss of water content in pulposus • Stretching, degeneration, & rupture of annulus • Bulging of disc • Leads to leakage of nucleus’ content • Nerve root compression • Pain/numbness in associated extremities • Stiffness in back • Limited ability to continue desired lifestyle

  9. Disc Herniation • Compression/Pressure on Nerve Root: Symptoms? • Numbness • Shooting Pains • Tingling • Weakness • Loss of sense

  10. Anterior Lumbar Discectomy & ProDisc L • Abdominal Incision • Abdominal muscles deflected laterally; peritoneal cavity avoided • Iliac deflected laterally • Midline of target disc determined; discectomy performed • Placement of ProDisc L

  11. Questions?

  12. GVM = Patient Initials c/o = Complains of LBP = Lower Back Pain X = For PE = Physical Examination WNL = Within Normal Limits VAS = Pain Scale

  13. ESI = Epidural Steroidal Injection PT = Physical Therapy VAX–D = Type of Decompression MRI = Magnetic Resonance Imaging DDD = Degenerative Disc Disease

  14. X-ray Imaging

  15. X-ray Imaging

  16. MRI Imaging X-ray Imaging

  17. MRI Imaging X-ray Imaging Dark disc space in image to right indicates loss of water content and therefore a degenerating disc. Image above shows narrowed nerve root space where nerves are being pinched due to DDD.

  18. Now its time for the surgery

  19. Closing Remarks • How were you challenged today? • How can we improve days like this? • How has today changed your view of medicine? • Questions?

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