A Randomized
Controlled Trial of Exercise and Manipulative Therapy
for Cervicogenic Headache.
Randomized Trial
Spine. 27(17):1835-1843,
September 1, 2002.
Jull, Gwendolen PT, PhD ,*; Trott, Patricia PT,
MSc ,+; Potter, Helen PT, MSc ,++; Zito, Guy PT, Grad
Dip Manip Ther ,[S]; Niere, Ken PT, Mph ,[//];
Shirley, Debra PT, BSc ,[P]; Emberson, Jonathan MSc
,#; Marschner, Ian PhD ,#; Richardson, Carolyn PT, PhD
*
Abstract:
Study Design: A multicenter, randomized controlled trial
with unblinded treatment and blinded outcome assessment
was conducted. The treatment period was 6 weeks with
follow-up assessment after treatment, then at 3, 6, and
12 months.
Objectives: To determine
the effectiveness of manipulative therapy and a low-load
exercise program for cervicogenic headache when used
alone and in combination, as compared with a control
group.
Summary of Background Data:
Headaches arising from cervical musculoskeletal
disorders are common. Conservative therapies are
recommended as the first treatment of choice. Evidence
for the effectiveness of manipulative therapy is
inconclusive and available only for the short term.
There is no evidence for exercise, and no study has
investigated the effect of combined therapies for
cervicogenic headache.
Methods: In this study, 200
participants who met the diagnostic criteria for
cervicogenic headache were randomized into four groups:
manipulative therapy group, exercise therapy group,
combined therapy group, and a control group. The primary
outcome was a change in headache frequency. Other
outcomes included changes in headache intensity and
duration, the Northwick Park Neck Pain Index, medication
intake, and patient satisfaction. Physical outcomes
included pain on neck movement, upper cervical joint
tenderness, a craniocervical flexion muscle test, and a
photographic measure of posture.
Results: There were no
differences in headache-related and demographic
characteristics between the groups at baseline. The loss
to follow-up evaluation was 3.5%. At the 12-month
follow-up assessment, both manipulative therapy and
specific exercise had significantly reduced headache
frequency and intensity, and the neck pain and effects
were maintained (P < 0.05 for all). The combined
therapies was not significantly superior to either
therapy alone, but 10% more patients gained relief with
the combination. Effect sizes were at least moderate and
clinically relevant.
Conclusion: Manipulative
therapy and exercise can reduce the symptoms of
cervicogenic headache, and the effects are maintained.
|