Spinal anaesthesia should be injected into the space between –: (A) T12 – L1, (B) L1 – L2, (C) L3 – L4, (D) L5 – S1
Answer is C. L2-3 or L3-4 intervertebral space is used in adult as adult spinal cord ends at lower border of L1 vertebrae.
L4-5 intervertebral space is used in children as spinal cord ends at lower border of L3 vertebrae in children.