What is a hard - mold anesthesia needle

An epidural is commonly used. You can do an epidural puncture in any space, not the 2-3 space above. Anesthesia of a certain segment of the spinal cord is produced after injection of anesthetics.

Subdural anesthesia is an unexpected condition during epidural anesthesia, in which the fluid is not in the epidural but into the subdural space, but not into the cerebrospinal fluid, resulting in an unusually extensive block and potentially dangerous. Of course, this rarely happens.