- ganglion
This is the commonest cystic swelling at the back of the wrist and can
be seen in adults of any age. On examination the swelling may be soft
and cystic but it can also be quite tense and easily mistaken for a
bony prominence. It is harmless and in the absence of pain or
complications, due to pressure on to an under- lying nerve, it is
probably best left untreated.
- gate control theory of pain
This provides the physiological basis for an explanation of the
observed pain phenomena and the effective and cognitive aspects of
pain. The transmission of afferent nerve impulses is considered to be
modulated at spinal dorsal horn level by a gating mechanism. Several
interacting neural systems, including those from higher centres
('beyond the gate') have an excitatory or inhibitory function at the
gate. When neural transmission reaches a critical level, and the gate
is opened, a complex pattern of responses results in the experience and
manifestations of pain.
- gowers, sir william
Sir William Gowers, Consultant Neurologist, University College London,
1845-1915 wrote on writer's cramp and similar occupational conditions.
His views on the psychological and physical aspect of what would now be
called work related upper limb disorders were very advanced for his
time.
- guillain-barre syndrome
This is a polyneuropathy usually described as an acute infective
polyneuritis. It is caused by inflammation of the spinal nerves soon
after their formation at the junction of the nerve roots. All four
limbs may be involved simultaneously. Sensory loss may involve the
limbs or may spread to the trunk. If death from respiratory paralysis
is prevented the outlook is good.
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