The best replacement for spinal tap is epidural.

The best alternatives to spinal tap are rated as following:
★★★★★  epidural
★★★★  lumbar puncture
★★  general anesthesia
★  spinal block
  so i have read
  bad news
  myelogram
  bone marrow biopsy
  puncture

Your alternative for spinal tap is not listed? Suggest!
Speaking about spinal tap, one probably shouldn't forget about ms.

Other search terms related to spinal tap and their ratings are:
★★★★★ ms
★★★ no fluid
opening pressure
You have in mind a companion for spinal tap and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of spinal tap in all years. Click on graph for more.
spinal tap
epidural
lumbar puncture