E. “HNP”:

• Clinical:

  • Low back pain wit associated leg symptoms
  • Positions can induce radicular symptoms
  • Posterolateral disc pathology most common:
    • Area where anular fibers least protected by PLL
    • Greatest shear forces occur with forward or lateral bend
  • Central disc pathology:
    • Usually with LBP only without radicular symptoms, unlessa large defect is present

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