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Position of needle insertion

Authoring team

  • the adult spinal cord ends at the level of L1/2

  • use the L3/4 or L4/5 interspace

  • the fourth lumbar vertebra is found at the intersection of a line drawn from one iliac crest to another with the vertebral column; above this is L3/4; below is L4/5

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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