How to locate bone marrow aspirate

Commonly selected puncture sites in clinical practice:

Anterior superior iliac spine: The puncture point is usually taken 1-2cm behind and above the anterior superior iliac spine, where the bone surface is flat, easy to fix, convenient and safe to operate.

Posterior superior iliac spine: located on both sides of the sacral spine, the bony protrusion above the buttocks.

Fix the bone marrow puncture needle fixer at an appropriate length (about 1.5cm for iliac bone puncture, and it can be lengthened appropriately for obese persons), fix the skin at the puncture site with the thumb and index finger of the left hand, and pierce the needle vertically on the bone surface with the right hand. After touching the bone, rotate left and right, and slowly pierce the bone. When the resistance disappears and there is a feeling of emptiness, and the puncture needle has been fixed in the bone, it means that it has entered the bone marrow cavity.

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