Highest point of iliac crest is seen at;
Highest point of iliac crest lies at the level of the 4th lumbar veebral body (L4). Clinical significance: Site of bone marrow harvests to collect the stem cells used in bone marrow transplantation. Most ideal donor site forbone grafting when a large quantity of bone is needed. To estimate site for lumbar puncture as LP is done at the level b/w L3-L4 or b/w L4-L5 and highest point of iliac crest coincides with it.
L3
L4
S1
S2
FMGE 2019