Use of atraumatic spinal needles among neurologists in the United States.
Birnbach DJ, Kuroda MM, Sternman D, Thys DM.
https://www.ncbi.nlm.nih.gov/pubmed/11318885Conclusions
Atraumatic spinal needles for lumbar puncture have been shown to dramatically decrease the risk of postdural puncture headache. Although the use of these needles is standard practice among anesthesiologists, they have not been adopted by other medical specialties. This may lead to unnecessary morbidity among patients undergoing lumbar puncture.