Bone marrow puncture needle position and puncture point

Bone marrow aspiration is a common diagnostic technique for collecting bone marrow fluid. Clinically, bone marrow aspirate is often used for morphological examination of blood cells.

Choice of puncture site:

1. The anterior superior iliac spine, usually 1 to 2 cm behind and above the anterior superior iliac spine, is used as the puncture point. Here, the bone surface is relatively flat and easy to fix, and the operation is convenient and safe.

2. Posterior superior iliac spine, located on both sides of the spine, bony prominence above the buttocks.

3, the manubrium, where the bone marrow content is abundant.

4. Spinous process of lumbar vertebra, which is rarely used at the protrusion of lumbar vertebral spinous process.

5. For infants under two years old, choose the front and lower part of the tibial tuberosity.

Posture: supine position for puncture of sternum and anterior superior iliac spine; lateral position for posterior superior iliac spine puncture; sitting or lateral position for lumbar lumbar puncture.

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