Pain Relief After Colorectal Surgery: Spinal Combined With Painbuster® vs Painbuster® Alone.

"Spinal anaesthetic will be performed in the lateral position using a midline approach. L3/4 interspace will be identified using Tuffier's as the anatomical landmark. After confirmation of correct placement using a 25G Whitacre needle, 12.5 mg of hyperbaric Bupivacaine in a mixture with 500mcg Diamorphine will be injected intrathecally.~PLUS~Painbuster® catheters will be placed by the surgeon at the end of the procedure in a location determined by the surgical approach. A bolus dose of 20ml 0.25% L-Bupivacaine will be injected down the catheters prior to the connection of the elastomeric pump which will also contain 270ml 0.25% L-Bupivacaine."

A Painbuster® catheter will be placed by the surgeon at the end of the procedure in a location determined by the surgical approach. A bolus dose of 20ml 0.25% L-Bupivacaine will be injected down the catheters prior to the connection of the elastomeric pump which will also contain 270ml 0.25% L-Bupivacaine.

500mcg