Commonly Selected Sites For Lumbar Puncture Needles And The Structures They Pass Through From Outside To Inside
May 28, 2018
The puncture point is generally connected to the posterior and superior poles of the two iliac, and the needle is inserted in the space between L3 and L4 or between L4 and L5. The puncture needle should pass through the skin, subcutaneous tissue, supraspinous ligament, interspinous ligament between spinous processes, and yellow ligament in turn. The ligaments, the epidural space (which includes the internal vertebral venous plexus, the dura mater, and the arachnoid), enter the subarachnoid space and are located between the cauda equina roots.
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