N

nerve block

an injection that causes numbness and weakness by preventing function of a nerve

neurofibroma

a tumour arising within a nerve

neuropathic pain

pain that derives in nerves and may not be responsive to routine pain medications

neuropathy

malfunction in a nerve due to a medical disease of nerves or to compression of the nerve

NSAID

Non steroidal anti-inflammatory drugs that reduce swelling, inflammation and pain without the use of steroids

nucleus pulposus

The soft spongy material that makes up the centre of the disc.