from ACA website http://www.amerchiro.org/content_css.cfm?CID=2205
Chiropractic is widely recognized as one of the safest drug-free,
non-invasive therapies available for the treatment of back pain, neck
pain, joint pain of the arms or legs, headaches, and other
neuromusculoskeletal complaints. Although chiropractic has an excellent
safety record, no health treatment is completely free of potential
adverse effects.
The risks associated with chiropractic, however, are very small. Many
patients feel immediate relief following chiropractic treatment, but
some may sometimes experience mild soreness or aching, just as they do
after some forms of exercise. Current literature shows that minor
discomfort or soreness following spinal manipulation typically fades
within 24 hours.1
In addition to being a safe form of treatment, spinal manipulation is
incredibly effective, getting patients back on their feet faster than
traditional medical care. A March 2004 study in the Journal of
Manipulative and Physiological Therapeutics found that chiropractic care
is more effective than medical care at treating chronic low-back pain in
those patients who have been experiencing the symptoms for one year or
less. In addition, a study published in the July 15, 2003, edition of
the journal Spine found that manual manipulation provides better
short-term relief of chronic spinal pain than a variety of medications.
Neck Adjustments
Neck pain and some types of headaches are sometimes treated through neck
adjustment. Neck adjustment, often called cervical manipulation, works
to improve joint mobility in the neck, restoring range of motion and
reducing muscle spasm, which helps relieve pressure and tension. Neck
adjustment is a precise procedure that is generally applied by hand to
the joints of the neck. Patients typically notice a reduction in pain,
soreness, stiffness, and an improved ability to move the neck.
Neck manipulation is a remarkably safe procedure. Although some reports
have associated upper high-velocity neck manipulation with a certain
kind of stroke, or vertebral artery dissection, there is not yet a clear
understanding of the connection. While we don’t know the actual
incidence of stroke associated with high-velocity upper neck
manipulation, the occurrence appears to be rare—1 in 5.85 million
manipulations2— based on the clinical reports and
scientific studies to date.
To put this risk into perspective, if you drive more than a mile to get
to your chiropractic appointment, you are at greater risk of serious
injury from a car accident than from your chiropractic visit.
It has also been suggested that sudden, severe upper-neck pain and/or
headache, which may indicate a pre-stroke condition, could cause someone
to visit a doctor of chiropractic. In addition, some common activities,
such as stargazing, rapidly turning the head while driving, and having a
shampoo in a hair salon may cause an aneurysm—a widening of an artery
resulting from the weakening of the artery walls—of the neck arteries,
resulting in stroke. Such events remain very difficult to predict.
It is important for patients to understand the risks associated with
some of the most common treatments for neck and back pain—prescription
nonsteroidal anti-inflammatory drugs (NSAIDS)—as these options may
carry risks significantly greater than those of manipulation. According
to a study from the American Journal of Gastroenterology, approximately
one-third of all hospitalizations and deaths related to gastrointestinal
bleeding can be attributed to the use of aspirin or NSAID painkillers
like ibuprofen.3
Furthermore, surgery for conditions for which manipulation may also be
used carries risks many times greater than those of chiropractic
treatment. Even prolonged bed rest carries some risks, including muscle
atrophy, cardiopulmonary deconditioning, bone mineral loss and
thromoembolism.4
If you are visiting your doctor of chiropractic with upper-neck pain or
headache, be very specific about your symptoms. This will help your
doctor of chiropractic offer the safest and most effective treatment,
even if it involves referral to another health care provider. If the
issue of stroke concerns you, do not hesitate to discuss it with your
doctor of chiropractic. Depending on your clinical condition, he or she
can forego manipulation, and instead can recommend joint mobilization,
therapeutic exercise, soft-tissue techniques, or other therapies.
Research Ongoing
The ACA believes that patients have the right to know about the health
risks associated with any type of treatment, including chiropractic.
Today, chiropractic researchers are involved in studying the benefits
and risks of spinal adjustment in the treatment of neck and back pain
through clinical trials, literature reviews and publishing papers
reviewing the risks and complications of neck adjustment.
All available evidence demonstrates that chiropractic treatment holds an
extremely small risk. The chiropractic profession takes this issue very
seriously and engages in training and postgraduate education courses to
recognize the risk factors in patients, and to continue rendering
treatment in the most effective and responsible manner.
References
1. Senstad O, et al. Frequency and characteristics of side effects of
spinal manipulative therapy. Spine 1997 Feb 15;435-440.
2. Haldeman S, et al. Arterial dissection following cervical
manipulation: a chiropractic experience. Can Med Assoc J
2001;165(7):905-06.
3. Lanas A, et al. A nationwide study of mortality associated with
hospital admission due to severe gastrointestinal events and those
associated with nonsteroidal anti-inflammatory drug use. Am J
Gastroenterol 2005;100:1685–1693.
4. Lauretti W. The Comparative Safety of Chiropractic. In Daniel
Redwood, ed., Contemporary Chiropractic. New York: Churchill Livingstone,
1997, p. 230-8.