I would go with a transforaminal approach at L4-L5 with a catheter, and make sure you cover the painful segments. The danger would be a loculation and/or subdural spread. The cysts may or may not ruptureā¦..wait 20 minutes after the local anesthetic before injecting hypertonic salineā¦.3 infusions, 6-8 hours apart, then watch the patient for the next 4 hours. Read the latest description in the 2nd edition of Techniques of Neurolysis.
Gabor Racz,MD