N
Neuromuscular
The word 'neuro' means 'nerves' or relating to the nervous system. 'Neuromuscular' means the muscles and the nerves that give the instructions to the muscles.
Neuropathic
Neuropathic means an abnormality arising from the nervous system.
NHS
NHS is an abbreviation of 'National Health Service', the state healthcare system of the United Kingdom (UK).
Non-isometric
Non-isometric in the context of a ligament means that the length of the ligament cannot be maintained throughout the range of motion of the joint.
Non-steroidal anti-inflammatory
A non-steroidal anti-inflammatory is a medication to reduce inflammation, but which does not contain steroids (cortisone products).
Notch
The notch in the knee world refers to the 'intercondylar notch'.
Notch impingement
Notch impingement is a condition where the intercondylar notch of the femur is too narrow to easily accommodate the cruciate ligaments or a cruciate ligament graft.
Notchplasty
A notchplasty is a surgical widening of the intercondylar notch, usually performed as part of an anterior cruciate ligament revision to limit future trauma to the reconstructed ligament.
Noyes classification
The Noyes' Classification is a system for classifying via arthroscopy the degree of cartilage destruction in an arthritic joint.
NSAID
NSAID is an abbreviation of 'non-steroidal anti-inflammatory'.