Jay Jagannathan, MD | Michigan Neurosurgery Institute on Instagram: "On today’s Q&A with Dr. Jay, he answers a follower question about the difference between a lumbar puncture and a lumbar fusion. A spinal tap is an outpatient procedure in which a small needle is placed inside the spinal canal, in the dura, to drain out some spinal fluid. A spinal fusion, by contrast, involves surgically fusing two levels of the spine together. #spinalfusion #spinaltap #surgery #healthcare #educational"