Bony Landmarks of Spinal Canal The vertebral levels which correspond to important landmarks within the spinal canal.

In 3% of the population the cord ends at L1 or above.

In 94% of the population the cord ends at L1 or L2.

In 3% of the poulation the cord ends at L3.

Modified and re-drawn from:
'Lumbar Puncture and Spinal Analgesia'.
R. Macintosh. Blackwells Books, Oxford.