Wrist
& Hand Pain
Carpal Tunnel Syndrome
Find
our about our non-surgical
Carpal DMT® wrist & hand procedures.
Carpal tunnel syndrome (CTS) is a painful and disabling group
of symptoms (tingling, burning, numbness, weakness, or pain) that
occur in the wrist or hand, and may travel into the lower arm
and elbow. CTS is one of the most common work-related injuries
and a leading cause of work disability. Take the carpal tunnel
syndrome survey by clicking the link to the right of this paragraph.
The
carpal tunnel is a three-sided opening at the wrist,
with the bones forming an arch or “tunnel”
shape around a portion of the opening. The transverse
carpal ligament bridges across the wrist bones,
forming the floor of the tunnel. The flexor tendons
and the median nerve travel through the tunnel into
the hand.
You
are at risk for CTS if you routinely perform wrist
and hand repetitive tasks (such as working on a
computer for long hours). Other risk factors include
previous wrist fractures, obesity, pregnancy, use
of birth control pills, and certain diseases.
It
is important to have CTS treated immediately and
to make adjustments in the work environment to prevent
further injury. Not treating CTS may result in permanent
nerve damage and disability.
Carpal
tunnel syndrome is a Repetitive Stress Injury (RSI)
RSIs are caused by repeated “trauma”
on the body during routine activities. CTS is commonly
caused by repetitive stress on the wrist and hands.
It is important to treat RSIs early to avoid more
serious health problems. Treatment, education and
correction of the patient’s environment are
critical for avoiding additional injury and pain.
The
following information is normally used when diagnosing
carpal tunnel syndrome.
Detailed health history
of wrist pain and other health conditions
Physical exam
Orthopedic exam
Radiological exam (x-ray, other imaging)
Neurological exam including nerve conduction studies
The
Non-Surgical Solution to Carpal Tunnel Syndrome
Carpal
DMT®, also known as Carpal Decompression-Mobilization
Therapy, is a new procedure in carpal tunnel syndrome
treatment and research. This advanced procedure
works to reduce the compression of the median nerve
at the wrist, remove the inflammation, and restore
normal, painless functioning of the hand and wrist.
Carpal DMT® is conservative, safe, non-surgical
and helps stop the progress of permanent nerve damage.
Carpal Tunnel Syndrome Frequently Asked Questions
What is carpal tunnel syndrome?
You're working at your desk, trying to ignore the tingling or numbness
you've had for months in your hand and wrist. Suddenly, a sharp, piercing
pain shoots through the wrist and up your arm. Just a passing cramp? More
likely you have carpal tunnel syndrome, a painful progressive condition
caused by compression of a key nerve in the wrist.
Carpal tunnel syndrome occurs when the median nerve, which runs
from the forearm into the hand, becomes pressed or squeezed at the
wrist. The median nerve controls sensations to the palm side of the
thumb and fingers (although not the little finger), as well as impulses
to some small muscles in the hand that allow the fingers and thumb to
move. The carpal tunnel - a narrow, rigid passageway of ligament and
bones at the base of the hand ¾ houses the median nerve and tendons.
Sometimes, thickening from irritated tendons or other swelling narrows
the tunnel and causes the median nerve to be compressed. The result may
be pain, weakness, or numbness in the hand and wrist, radiating up the arm.
Although painful sensations may indicate other conditions, carpal tunnel
syndrome is the most common and widely known of the entrapment
neuropathies in which the body's peripheral nerves are compressed or traumatized.
What are the symptoms of carpal tunnel syndrome?
Symptoms usually start gradually, with frequent burning, tingling, or
itching numbness in the palm of the hand and the fingers, especially the
thumb and the index and middle fingers. Some carpal tunnel sufferers say
their fingers feel useless and swollen, even though little or no swelling
is apparent. The symptoms often first appear in one or both hands during
the night, since many people sleep with flexed wrists. A person with carpal
tunnel syndrome may wake up feeling the need to "shake out" the hand or wrist.
As symptoms worsen, people might feel tingling during the day. Decreased grip
strength may make it difficult to form a fist, grasp small objects, or perform
other manual tasks. In chronic and/or untreated cases, the muscles at the base
of the thumb may waste away. Some people are unable to tell between hot and
cold by touch.
What are the causes of carpal tunnel syndrome?
Carpal tunnel syndrome is often the result of a combination of factors
that increase pressure on the median nerve and tendons in the carpal tunnel,
rather than a problem with the nerve itself. Most likely the disorder is due
to a congenital predisposition - the carpal tunnel is simply smaller in some
people than in others. Other contributing factors include trauma or injury to
the wrist that cause swelling, such as sprain or fracture; overactivity of the
pituitary gland; hypothyroidism; rheumatoid arthritis; mechanical problems in
the wrist joint; work stress; repeated use of vibrating hand tools; fluid
retention during pregnancy or menopause; or the development of a cyst or tumor
in the canal. In some cases no cause can be identified.
There is little clinical data to prove whether repetitive and forceful movements
of the hand and wrist during work or leisure activities can cause carpal tunnel
syndrome. Repeated motions performed in the course of normal work or other daily
activities can result in repetitive motion disorders such as bursitis and tendonitis.
Writer's cramp - a condition in which a lack of fine motor skill coordination and ache
and pressure in the fingers, wrist, or forearm is brought on by repetitive activity -
is not a symptom of carpal tunnel syndrome.
Who is at risk of developing carpal tunnel syndrome?
Women are three times more likely than men to develop carpal tunnel syndrome,
perhaps because the carpal tunnel itself may be smaller in women than in men.
The dominant hand is usually affected first and produces the most severe pain.
Persons with diabetes or other metabolic disorders that directly affect the body's
nerves and make them more susceptible to compression are also at high risk. Carpal
tunnel syndrome usually occurs only in adults.
The risk of developing carpal tunnel syndrome is not confined to people in a single
industry or job, but is especially common in those performing assembly line work -
manufacturing, sewing, finishing, cleaning, and meat, poultry, or fish packing. In
fact, carpal tunnel syndrome is three times more common among assemblers than among
data-entry personnel. A 2001 study by the Mayo Clinic found heavy computer use
(up to 7 hours a day) did not increase a person's risk of developing carpal tunnel syndrome.
During 1998, an estimated three of every 10,000 workers lost time from work because
of carpal tunnel syndrome. Half of these workers missed more than 10 days of work.
The average lifetime cost of carpal tunnel syndrome, including medical bills and lost
time from work, is estimated to be about $30,000 for each injured worker.
How is carpal tunnel syndrome diagnosed?
Early diagnosis and treatment are important to avoid permanent damage to the
median nerve. A physical examination of the hands, arms, shoulders, and neck
can help determine if the patient's complaints are related to daily activities
or to an underlying disorder, and can rule out other painful conditions that
mimic carpal tunnel syndrome. The wrist is examined for tenderness, swelling,
warmth, and discoloration. Each finger should be tested for sensation, and the
muscles at the base of the hand should be examined for strength and signs of
atrophy. Routine laboratory tests and X-rays can reveal diabetes, arthritis, and
fractures.
Physicians can use specific tests to try to produce the symptoms of carpal tunnel
syndrome. In the Tinel test, the doctor taps on or presses on the median nerve in
the patient's wrist. The test is positive when tingling in the fingers or a resultant
shock-like sensation occurs. The Phalen, or wrist-flexion, test involves having the
patient hold his or her forearms upright by pointing the fingers down and pressing
the backs of the hands together. The presence of carpal tunnel syndrome is suggested
if one or more symptoms, such as tingling or increasing numbness, is felt in the
fingers within 1 minute. Doctors may also ask patients to try to make a movement that
brings on symptoms.
Often it is necessary to confirm the diagnosis by use of electrodiagnostic tests.
In a nerve conduction study, electrodes are placed on the hand and wrist. Small
electric shocks are applied and the speed with which nerves transmit impulses is
measured. In electromyography, a fine needle is inserted into a muscle; electrical
activity viewed on a screen can determine the severity of damage to the median nerve.
Ultrasound imaging can show impaired movement of the median nerve. Magnetic resonance
imaging (MRI) can show the anatomy of the wrist but to date has not been especially
useful in diagnosing carpal tunnel syndrome.
How can carpal tunnel syndrome be treated?
Treatments for carpal tunnel syndrome should begin as early as possible, under
a doctor's direction. Underlying causes such as diabetes or arthritis should be
treated first. Initial treatment generally involves resting the affected hand and
wrist for at least 2 weeks, avoiding activities that may worsen symptoms, and
immobilizing the wrist in a splint to avoid further damage from twisting or bending.
If there is inflammation, applying cool packs can help reduce swelling.
How can carpal tunnel syndrome be prevented?
Treatments for carpal tunnel syndrome should begin as early as possible, under
a doctor's direction. Underlying causes such as diabetes or arthritis should be
treated first. Initial treatment generally involves resting the affected hand and
wrist for at least 2 weeks, avoiding activities that may worsen symptoms, and
immobilizing the wrist in a splint to avoid further damage from twisting or bending.
If there is inflammation, applying cool packs can help reduce swelling.
Non-surgical treatments
Drugs - In special circumstances, various drugs can ease the pain and
swelling associated with carpal tunnel syndrome. Nonsteroidal anti-inflammatory
drugs, such as aspirin, ibuprofen, and other nonprescription pain relievers, may
ease symptoms that have been present for a short time or have been caused by
strenuous activity. Orally administered diuretics ("water pills") can decrease
swelling. Corticosteroids such as prednisone or lidocaine, injected directly into
the wrist or taken by mouth, can relieve pressure on the median nerve and provide
immediate, temporary relief to persons with mild or intermittent symptoms. (Caution:
persons with diabetes and those who may be predisposed to diabetes should note that
prolonged use of corticosteroids can make it difficult to regulate insulin levels.
Corticosterioids should not be taken without a doctor's prescription.) Additionally,
some studies show that vitamin B6 (pyridoxine) supplements may ease the symptoms of
carpal tunnel syndrome.
Exercise - Stretching and strengthening exercises can be helpful in people
whose symptoms have abated. These exercises may be supervised by a physical therapist,
who is trained to use exercises to treat physical impairments, or an occupational
therapist, who is trained in evaluating people with physical impairments and helping
them build skills to improve their health and well-being.
Alternative Procedures - Carpal DMT®
is a new non-surgical procedure shown to be greatly effective at improving
carpal tunnel syndrome. Acupuncture and chiropractic care have
benefited some patients but their effectiveness remains unproved.
An exception is yoga, which has been shown to reduce pain and improve
grip strength among patients with carpal tunnel syndrome.
Surgery
Carpal tunnel release is one of the most common surgical procedures in the United
States. Generally recommended if symptoms last for 6 months, surgery involves severing
the band of tissue around the wrist to reduce pressure on the median nerve. Surgery is
done under local anesthesia and does not require an overnight hospital stay. Many patients
require surgery on both hands. The following are types of carpal tunnel release surgery:
Open release surgery, the traditional procedure used to correct carpal tunnel
syndrome, consists of making an incision up to 2 inches in the wrist and then cutting
the carpal ligament to enlarge the carpal tunnel. The procedure is generally done under
local anesthesia on an outpatient basis, unless there are unusual medical considerations.
Endoscopic surgery may allow faster functional recovery and less postoperative
discomfort than traditional open release surgery. The surgeon makes two incisions
(about ½" each) in the wrist and palm, inserts a camera attached to a tube, observes
the tissue on a screen, and cuts the carpal ligament (the tissue that holds joints
together). This two-portal endoscopic surgery, generally performed under local anesthesia,
is effective and minimizes scarring and scar tenderness, if any. One-portal endoscopic
surgery for carpal tunnel syndrome is also available.
Although symptoms may be relieved immediately after surgery, full
recovery from carpal tunnel surgery may take months. Some patients
may have infection, nerve damage, stiffness, and pain at the scar.
Occasionally the wrist loses strength because the carpal ligament
is cut. Patients should undergo physical therapy after surgery to
restore wrist strength. Some patients may need to adjust job duties
or even change jobs after recovery from surgery.
What research is being done?
At the workplace, workers can do on-the-job conditioning, perform stretching
exercises, take frequent rest breaks, wear splints to keep wrists straight, and
use correct posture and wrist position. Wearing fingerless gloves can help keep
hands warm and flexible. Workstations, tools and tool handles, and tasks can be
redesigned to enable the worker's wrist to maintain a natural position during work.
Jobs can be rotated among workers. Employers can develop programs in ergonomics, the
process of adapting workplace conditions and job demands to the capabilities of workers.
However, research has not conclusively shown that these workplace changes prevent the
occurrence of carpal tunnel syndrome.
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