Carpal tunnel syndrome is characterised by pain,
burning / tingling sensation, numbness at the wrist, palm, thumb, index, middle
& adjoining half of ring finger. It is caused by entrapment of the median
nerve in a tunnel, called Carpal tunnel. Entrapment is caused by the inflammation
of the synovial sheath covering flexor tendons at the wrist.
Pain, tingling and numbness in
fingers are typically present on waking up or can wake the patient.
The fingers feel swollen and
intense aching is felt in the forearm.
The symptoms may appear when the
patient holds a newspaper
Or the steering wheel of a car or
holding objects in kitchen. Permanent numbness and wasting of the thinnear
eminence cause clumsiness of movements. It may lead to depression.
Sometimes it is seen in the third
trimester of pregnancy which settles down of its own after delivery.
Tests and
investigations —
tapping the median nerve in
The carpal tunnel or holding the
wrist in forced
Flexion may provoke symptoms.
Weakness of grip of hand is also suggestive of
the condition.
The carpal tunnel syndrome can be confirmed by
US, MRI & CT scan. But they are usually not needed.
Management and
injection technique —
A splint worn on the wrist
at night relieves or reduces the
symptoms of carpal tunnel syndrome.
This is diagnostic and may be
curative.
Anti inflammatory &
neurotropic drugs help in recovery.
A corticosteroid injection into the carpal tunnel
may also be considered,
This often helps rapidly,
although recurrence is common.
Surgical decompression of the
median nerve is usually a permanent solution.