spinal analgesia

analgesia yang ditimbulkan dengan menyuntikkan opioid ke dalam ruang subaraknoid di sekitar medula spinalis; cf. spinal anesthesia.

spinal analgesia (Wikipedia)
Spinal anaesthesia
Liquor bei Spinalanaesthesie.JPG
Backflow of cerebrospinal fluid through a 25 gauge spinal needle after puncture of the arachnoid mater during initiation of spinal anaesthesia
MeSH D000775

Spinal anaesthesia (or spinal anesthesia), also called spinal block, subarachnoid block, intradural block and intrathecal block, is a form of regional anaesthesia involving the injection of a local anaesthetic into the subarachnoid space, generally through a fine needle, usually 9 cm (3.5 in) long. For obese patients longer needles are available (12.7 cm / 5 inches). The tip of the spinal needle has a point or small bevel. Recently, pencil point needles have been made available (Whitacre, Sprotte, Gertie Marx and others).