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Chiropractice
is a system of complementary medicine based on the diagnosis and
manipulative treatment of misalignments of the joints, especially
those of the spinal column, which are held to cause other disorders
by affecting the nerves, muscles and organs.
Uses
The 'hands-on'
joint manipulation known as chiropractice is considered particularly
valuable for relief of acute (temporary) pain in the lower back.
This type of pain usually subsides on its own within three months,
but chiropratice treatment can often bring it to an end immediately
(see also the entry on osteopathic medicine). In many cases, chiropractice
can also ease paindue either to a temporary condition or aggravation
of a chronic problemin areas such as the mid-back, neck or
joints. Additionally, it is sometimes used to relive the pain of
headaches, muscle spasms and nerve inflammation. Its effectiveness
for relief of sciatica (pain or numbness along the sciatic nerve,
generally in the back, buttocks, hips or adjacent parts) remains
controversial. After the common cold, low back pain is the most
common reason for doctor visits. It is an especially frustrating
problem because there's frequently no simple medical explanation
for itand therefore no easy cure.
However, there
is now mounting evidence that spinal manipulation can be a genuine
source of relief. In 1994, the Agency for Health Care Policy and
Research (AHCPR) released its Guidelines on Acute Low Back Problems
in Adults. This report identified manipulation (defined as certain
specific techniques used to re-align or re-adjust a joint) as the
preferred method of treatment for relief of acute back pain. Traction,
bed rest, corsets, or drug therapies were not recommended. Similarly,
a report from RAND Corporation published in the prestigious Annals
of Internal Medicine found manipulation effective for the relief
of acute low back pain. (It was not, however, deemed as successful
in the treatment of chronic or recurrent low back pain, sciatica,
asthma, high blood pressure, or pain caused by neurological conditions.)
Chiropractors, Rand pointed out, perform 94 per cent of spinal manipulations
(though not necessarily with the same techniques employed in the
study).
To date, there
is no scientific confirmation of chiropractice's effectiveness for
anything other than low back pain. However, in a few years we should
know more. In early 1998, the National Institute of Health's Office
of Alternative Medicine, and the National Institute of Arthritis
and Musculoskeletal and Skin Diseases awarded a research grant to
support the first federally funded Centre for Chiropractice Research.
Procedure
of Treatment
Although the
back is the primary focus of chiropractice the manipulations can
be applied to any muscle or joint in the body. Techniques vary among
practitioners. Typically, after preparation and proper positioning,
the chiropractor creates tension around the offending joint, then
applies pressure to return to its proper position. A popping sound
is often heardand sometimes feltfollowing this manoeuvre.
The noise is similar to the one you hear when cracking your knuckles.
It results from the sudden release of built-up pressure in the joint
and is generally painless. As the joint snaps into place, pain is
relieved and proper function is restored.
Other techniques
you may encounter include soft tissue manipulation trigger-point
manipulation or deep tissue massage. On your first visit to a chiropractor,
you will probably be asked to complete a questionnaire about your
personal and family medical history. Be sure to discuss any illnesses
that run in the family. Although chiropractors are not prepared
to diagnose the full gamut of disease, they are trained to perform
physical examinations in much the same way as a general medical
practitioner. For example, you may be given a blood test to rule
out infection and a reflex test to rule out neurological problems.
Your blood pressure, pulse and respiration will also be measured.
Once these general readings have been taken, the examination will
begin to zero in on your musculoskeletal systemthe muscles
and bones in your bodywith particular attention to your spine.
The chiropractor will also analyze your posture, and will probably
perform some orthopaedic tests as he examines your articulations
(a chiropractic term for joints). These tests usually involve moving
a particular limb in search of joints that are 'fixated' (not moving)
or moving with impaired range. If the chiropractor identifies a
fixated joint, he will then attempt to determine whether there is
any risk involved to restoring normal movement to the joint and
what other parts of the musculoskeletal system have been affected
by the joint's dysfunction. It is common for a 'healthy' joint to
overcompensate by moving excessively when another joint is not working
correctly. The healthy, hyperactive joint might be near the fixated
joint or in an entirely different part of the musculoskeletal system.
Overcompensation can result in new, incorrect structural configurations
that cause discomfort or pain.
To rule out
any conditions that would preclude treatment, chiropractors usually
take an x-ray of the region causing your pain before beginning the
manipulations. Some chiropractors also take x-rays to locate subluxations
(partial dislocations). Most chiropractors have basic x-ray equipment
on-site and all chiropractors are trained to ready x-ray images.
If a specialized view is required, you may be referred to a centre
that has advanced technology, such as magnetic resonance imaging
(MRI) equipment, or other equipment that provides a comprehensive
image. About 90 per cent of chiropractors use x-rays. However, full-spinal
x-rays in search of subluxations are considered controversial by
many practitioners, and constitute less than 17 per cent of all
x-rays performed by chiropractors, according to the American Chiropractice
Association. Many practitioners, chiropractice and otherwise, believe
that full-spinal x-rays yield little if any useful information,
and thus expose patients to radiation needlessly. The chiropractor
will also examine your muscles to determine if they are balanced.
Just as healthy joints compensate for injuries in other structures,
muscles my also exhibit 'compensated distortion'. When one muscle
or group of muscles is contracted, for example, those on the other
side may be abnormally relaxed. Once the chiropractor has all the
information he needs, treatment will proceed.
Therapeutic
equipment common to virtually all chiropractors is a specialized
table designed to conform to a patient's body. The table has mechanized
parts that can be adjusted in accordance with the patient's size
and region of the body that requires treatment. For example, the
surfaces where the face, pelvis, and other body structures lie will
yield independently as the chiropractor applies controlled force
to these areas during treatment. According to the American Chiropractice
Association, more than 90 per cent of chiropractors use techniques
common to physical therapy, especially in preparation for manipulation.
Your practitioner may use a broad, pad-like vibrator to relax your
back muscles. He may apply hot or cold compress to increase circulation
and relax painful muscle spasms, or use traction to ease pressure.
Ultrasound is often used as a 'micro massage' to stimulate circulation
and remove fluid from the area around a damaged joint and nearby
tissues. Some chiropractors also recommend and teach relaxation
techniques as a way to prevent future strain, and prescribe rehabilitative
exercises as part of an extended treatment plan. Some also prescribe
and sell dietary supplements and herbs, although such products fall
outside the realm of chiropractice.
Treatment
Time: The initial visit typically lasts at least one hour. Subsequent
visits usually take between 10 and 30 minutes.
Treatment Frequency: On an average, a course of treatment
involves three to five visits per week for two weeks. Several studies
have noted that consumers using chiropractice care are more satisfied
with treatment than patients who receive medical care. Chiropractice
are perceived as spending more time face-to-face with the patient,
although no studies have been done to verify this.
Benefits
The
primary goals of chiropractic therapy are relief of musculoskeletal
pain and restoration of mobility. However, many consumers use (or
misuse) chiropractors for a wide variety of unrelated ailments.
In a 1993 survey of more than 5,000 chiropractors, musculoskeletal
complaints did in fact dominate the list of conditions they treated,
but respondents also reported 'routinely' seeing patients with headaches
and 'often' seeing patients with high blood pressure problems, allergies
or obesity. Seen less frequently were patients with nutritional
disorder, menstrual irregularities, asthma and diabetes. Chiropractice
has long drawn criticism from the medical world for its failure
to provide valid proof of its effectiveness and for the exaggerated
claims of some practitioners who have touted spinal adjustment as
a cure for everything form chronic pain to sinus infections.
Indeed, until
1980 the American Medical Association (AMA) labelled as unethical
the referral of patients to chiropractors, only lifting the prohibition
when challenged in a successful antitrust suit. Lately, with growing
proof of spinal manipulation's effectiveness for low back pain,
chiropractice has gained new-found respectability. Collaboration
between medical specialists and chiropractors is on the increase,
and some managed care plans have begun covering chiropractice treatments.
Still, critics say there is little evidence that chiropractice relieves
studies support chiropractice for the treatment of chronic musculoskeletal
disorders, although some studies of chiropractic treatment for headache
show promising results. The version of chiropractice currently gaining
medical favour is far different from the original discipline.
Developed by
Daniel David Palmer in Davenport, Iowa, in 1985, chiropractice started
out as a natural healing method freighted with a variety of spiritual
and metaphysical concepts. Palmer's theory suggested that an innate
intelligence flows through the nervous system and can be obstructed
by a 'subluxation' or misalignmentof one or more of
the 24 joints in the vertebral column, thus interfering with the
blood supply and the body's full expression of healthy functioning.
Palmer believed that, because all parts of the body are connected
through the nervous system, all diseases were caused by one or more
subluxations. Thus, any disease could be cured by manipulating ore
realigning the vertebrae in order to allow the body to heal itself.
A significant misalignment of the vertebrae is rareand, as
in scoliosis, is usually quite noticeable. Conversely, many people
have asymmetrical spines with slight imperfections in alignment,
yet suffer no adverse effects on their health. Many contemporary
chiropractors therefore have begun to discuss subluxations less
in terms of misalignment and more in terms of loss of function,
since even a joint in perfect alignment may fail to work properly
and tend to cause pain.
Over the years,
different branches of chiropractic developed that emphasized one
or more principles of Palmer's original theories to greater or lesser
degrees. Historically, chiropractors categorized themselves as 'straights'
or 'mixers' to describe how closely they adhered to Palmer's philosophy.
'Straights' were purists, using only manipulation and focusing exclusively
on the spine; 'mixers' supplemented manipulation with other forms
of treatment, such as nutritional counselling and physiotherapy,
and acknowledged that diseases were caused by problems other than
subluxations. Chiropractice schools and professional associations
developed along these lines. Today, these distinctions are breaking
down. According to a 1997 report from the Agency for Health Care
Policy and Research, more than two-thirds of chiropractors use techniques
other than manipulation, such as exercise, nutritional counselling,
and physiotherapy, although 93 per cent retain spinal adjustment
as their primary approach to treatment.
Who
Should Avoid This Therapy?
Chiropractice
is not recommended for disorders of other than musculoskeletal origin,
and should be avoided for certain musculoskeletal problems as well.
For instance, it is not recommended for osteoporosis, bone or joint
infections, bone cancer, acute rheumatoid arthritis and diseases
of the spinal chord or bone marrow. It should also be avoided in
an area that has been operated on, such as a spinal fusion, and
near acute fractures and dislocations or healed fractures and dislocations
with signs of ligament damage. Chiropractors do not treat fractures.
Scoliosis, a condition in which the spine curves to the side, is
generally considered a target for chiropractice therapy. However,
idiopathic scoliosis, which develops over time instead of being
present at birth (congenital scoliosis), is not appropriate for
treatment by a chiropractor.
Side-effects
Serious
side-effects from spinal manipulation appear to be rear. Strokes
have been reported following manipulation of the neck, presumably
as a result of damage to one of the arteries supplying blood to
the brain. However, the incidence of adverse events from manipulation
of the neck region is estimated to be one in one million procedures,
according to the Agency for Health Care Policy and Research. Likewise,
the agency pegs the risk of a serious side-effect from manipulation
of the lower back at once case in 100 million manipulations. Minor
side-effects of spinal manipulation have not been systematically
analyzed. The adverse reactions reported by one study, such as headache,
radiating discomfort and fatigue following manipulation, were not
clearly shown to be a result of the treatment.
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