Repetitive work done by hands can lead to serious nervous disorders, from numbness in fingers to permanent nerve damage
'SIT straight. Keep your elbows close to
your body.' How often one has been
admonished and hated it all along. But
this is what was suggested by experts
who met at the annual meeting of the
American Academy of Orthopaedic
Surgeons. If you are consistently using
your hands for your work, you are liable
to suffer from what is known as the
carpal tunnel syndrome, a debilitating
disorder of the wrist, hand and arm.
The disease was known to affect
workers involved in repetitive physical
activity like carpenters and jackhammer
operators for many decades now. But
now, -supermarket cashiers and even
journalists have joined the ranks. And it
is because of the latter that the disease
has now become a household word, at
least in the us. Reporters and journalists
initially had a bad time coping with the
realisation that pounding out stories on
a typewriter or computer 6n have such
dire consequences.
Tingling and numbness of fingers
are the first symptoms of-the disease,
which then leads to aches, shooting
pains and weakness in the hand and
forearm. One of the common early
warning signs is, awakening at night with
shooting pain or numbness and tingling
feeling in the arms and hand. Most people do not connect the pains felt at night
with their activities during the daytime.
The syndrome is a result of pressure
on the median nerve, which along with
nine tendons and a number of blood
vessels passes through a narrow tunnel
in the wrist, made of bones and a ligament. Carpal tunnel syndrome can leave
people without jobs as they loose manual dexterity and strength of their hands.
Many require long rehabilitation periods and others have to undergo surgery
to relieve the pressure on the nerve.
Some really bad cases 6d. up with permanent nerve damage.
Physical therapists, orthopedic surgeons and ergonomic experts suggest
good posture for people working on
computers. Straight back with good
support, feet flat on the ground, forearms parallel to the ground and in line
with the hand. Unbent wrists without
support, elbows close to the body all
make a good posture. A computer
screen placed at eye-level or a maximum
of.15 degree below the eye, could be
allowed. Short breaks of at least 15 minutes after every two hours are also very
important. They also advice getting up,
moving around and stretching.
Massaging the palms, fingers and
thumbs of both the hands helps to relax
the tension on the nerves.
Conservative therapy according to
surgeons is the best treatment, with
surgery reserved for a small percentage of patients. Once the conservative therapy starts, the patient is advised against
the use of the injured hand even for
ringing the doorbell or holding a cup for
-a period of 7-10 days. The therapy
requires the patient to wear a wrist brace
and splint, particularly at night and taking anti-inflammatory medication. In
the case of pregnant women and those
taking birth control pills, 150-200 mg of
Vitamin B6 per day is also said to be
helpful.
Patients who do not respond to the
therapy are administered more direct
treatment. A new treatment was prescribed by J Lee Berger, affiliated with
the Seton Hall Graduate School of
Medicine in West Orange, New Jersey,
us. This minimally invasive procedure
to reduce pressure on the median nerve
involves insertion of a balloon catheter.
Similar to the one used in angioplasty
for opening blocked arteries, the
catheter is slipped through a quarter-inch incision under the ligament of the
carpal tunnel. Once inside the balloon,
it is inflated to make more room for the
nerve. Eighty five per cent of Berger's
120 patients have shown marked
improvement after the treatment.
Earlier this year of non-invasive laser
treatment was introduced by Michael I
Weintraub, a neurologist from Briarcliff
Manor, New York, us, which stimulates
the nerve and relieves the symptoms of
the syndrome. The response rate of this
treatment was over 70 per cent. While'
Daniel I Nagle of Northwestern
University Medical School found from
his multicentre study on 500 patients
that operating through a scope rather
than making an incision in the
wrist reduces the recovery time and
allows the patient to return to normal
activity earlier.
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