A regional anaesthetic involves injection of local anaesthetic and other additives, to obliterate pain sensation in specific parts of the body.
This technique involves the insertion of a needle, under some sedation whenever appropriate, to a target area.
This target area may be
The spinal cord
The epidural space
A group of nerves
An isolated nerve
Local anaesthetic will be injected via the needle; Its intended effect is to render the respective limb movement free and provide analgesia for a duration post surgery.
This technique may also be utilised as a part of a general anaesthetic to augment the analgesic plan for you.