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December 2006 >
Osteoarthritis Patients Treated With Acupuncture Show
Improvement |
Osteoarthritis Patients Treated With Acupuncture
Show Improvement
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Osteoarthritis
(OA) has a major impact on patients' mobility and quality of life but
the anti-inflammatory drugs used to treat it are associated with a
number of side effects. In recent years, patients have turned
increasingly to acupuncture to relieve the chronic pain associated with
OA. A new study published in the November 2006 issue of Arthritis &
Rheumatism examined the use of acupuncture as an extension of routine
medical care and whether the effects of treatment last after therapy is
discontinued.
Led by Claudia M. Witt of the University Medical Center in Berlin,
Germany, researchers conducted a randomized, controlled trial of a large
number of patients with chronic pain due to OA of the knee or hip.
Between July 2001 and July 2004, a total of 3,553 patients were divided
into three groups: 322 immediately received up to 15 sessions of
acupuncture in the initial three month period; 310 controls received no
acupuncture for the first three months; and 2,921 (those who did not
consent to randomization) received the same treatment as the acupuncture
group. Each patient was followed for a total of six months and the
control group received acupuncture during the last three months of their
study period. The Western Ontario and McMaster Universities
Osteoarthritis Index (WOMAC) and a health-related quality of life survey
(Short Form 36) were used to measure outcomes when the study began and
at three and six months.
"Patients with chronic pain due to OA of the knee or the hip who were
treated with acupuncture in addition to routine care showed significant
improvements in symptoms and quality of life compared with patients who
received routine care alone," the authors state. This was true for both
the randomized and the non-randomized groups. Furthermore, patients in
the control group who received acupuncture only after three months
showed similar improvements at six months. In addition, WOMAC and SF-36
scores at six months were only slightly lower than at three months for
those receiving acupuncture right away.
Although the study was not a blind trial, its design was chosen to
reflect general medical practice. It was one of the largest randomized
trials of acupuncture to date and based in part on the results, the
German Federal Committee of Physicians and Health Insurers is
considering a proposal that acupuncture will be reimbursed by state
health insurance funds. If approved, it will probably be provided as a
routine medical option in treating OA.
The authors conclude that "the present results show that, in patients
with chronic pain due to OA of the knee or hip who were receiving
routine primary care, addition of acupuncture to the treatment regimen
resulted in a clinically relevant and persistent benefit."
In an accompanying editorial in the same issue, Tao Liu and Chen Liu of
Jilin University, Changchun, Jilin, China, point out that acupuncture is
part of traditional Chinese medicine, which views the body differently
than biomedicine in that it emphasizes the body's healing ability and
aims for long-term healing, not necessarily a cure. In addition,
acupuncture features close patient-provider relationships that involve
enhanced interaction and communication, which can be beneficial in
managing OA. They also suggest that in reality, few OA patients use
acupuncture as the sole treatment and that a lack of information about
how well it works has probably meant that acupuncture is an undervalued
treatment option that could be an important element of a
multidisciplinary approach to treating OA. The authors note that the
current study "reflects as closely as possible the conditions of daily
medical practice, and as the authors point out, maximizes external
validity and clinical relevance." They state that the study was limited
in that the patient informed consent process was unclear and there were
some patient characteristics that were not described, such as whether
patients had previously tried acupuncture and what their experience was.
They also maintain that an acupuncturist's experience is the most
important factor in treatment outcome. They conclude: "Given that the
biologic mechanism of acupuncture is still unclear, the study by Witt et
al furthers our understanding of acupuncture and adds to the accumulated
evidence supporting its efficacy. Such evidence warrants extensive use
of acupuncture in various chronic pain conditions."
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