Before lumbar puncture

The answer given in the literature is a 20-24 gauge non-traumatic small puncture needle (here the non-traumatic needle resembles the tip of a pencil, not a beveled needle). The reason is that it creates a smaller incision and therefore less cerebrospinal fluid leaks. One study compared the incidence of postoperative headache with a 24-gauge non-traumatic needle with a diameter of 0.56 mm and a 27-gauge traumatic needle with a diameter of 0.7 mm, and found that the incidence of postoperative headache decreased from 36 percent to 0 percent -9 percent . .

In addition, during the puncture process, the oblique surface of the puncture needle is parallel to the long axis of the spine, which helps to repair the dural puncture wound faster and reduces the occurrence of cerebrospinal fluid leakage and postoperative headache. When using atraumatic needles for puncture, changing the catheter wire before the needle is pulled out can reduce the occurrence of postoperative headaches. Furthermore, intraoperative patients in the lateral decubitus position had a lower incidence of postoperative headache than intraoperative lumbar puncture in the sitting position.

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