Abstract
M.Tech.
Purpose: Heachaches are a very common complaint among society today, and as a result
there are a vast number of individuals seeking medical treatment specifically for
headaches (Alix and Bates, 1999). The impact that headaches have on a patients quality
of life far exceeds that of other conditions such as osteoarthritis and hypertension. Primary
headaches such as Cervicogenic, Cluster and Tension-type headaches have no specific
underlying cause. However, it has been shown that spinal manipulative therapy (SMT) can
be used as an effective tool in the treatment of these primary headaches (Brontford,
Assendelft, Evans, Haas, and Bouter, 2001; Khoury, 2000 and Vernon, 1995). A
Cervicogenic Headache is defined by the North American Cervicogenic Society (NACHS)
as referred pain perceived in any region of the head caused by a primary nociceptive
source in the musculoskeletal tissues innervated by cervical nerves.
The aim of this study was to determine the efficacy of upper cervical spine manipulation in
conjunction with Interferential current and Ultrasound therapy, compared to upper cervical
spine manipulations alone as a treatment protocol for Cervicogenic headaches.
Method: This study consisted of two groups; both Group 1 and Group 2 consisted of 15
participants with Cervicogenic headaches. The participants were between the ages of 18
and 55 years. Potential participants were examined and accepted based on the inclusion
and exclusion criteria. Group 1 received spinal manipulative therapy over restricted
segments in the upper cervical spine C1-C3 levels. Group 2 received a combination
treatment with Interferential current and Ultrasound therapy over active myofascial trigger
points in the Posterior Cervical muscles in conjunction with spinal manipulative therapy
over restricted segments in the upper cervical spine C1-C3 levels. Objective and subjective
findings were based on the treatments.
Procedure: The participants received six treatments in total over a three week period that
is two treatments a week for three weeks followed by a seventh consultation visit where
only subjective and objective measurements was taken. The participants completed a
Numerical Pain Rating Scale and Headache Disability Index Questionnaire. Algometer
readings were taken over the most sensitive trigger point in the Posterior Cervical muscles.
Group 1 received spinal manipulative therapy over restricted segments in the upper
cervical spine and Group 2 received a ten minute combination treatment with Interferential
current and Ultrasound therapy over active myofascial trigger points in the Posterior
Cervical muscles in conjunction with spinal manipulative therapy over restricted segments
in the upper cervical spine. The same treatment procedures were administered over the
study; subjective and objective readings were only taken at visits 1, 4 and 7.
Results: In terms of objective measurements based on the pressure Algometer readings,
a statistically significant difference was revealed within both Group 1 and Group 2
individually over time. No statistically significant difference in muscle sensitivity between
the two groups over time was revealed. However, Group 1 showed a larger overall
clinically significant difference in Posterior Cervical muscle sensitivity.
In terms of subjective measurements based on the Headache Disability Index
Questionnaire scores, a statistically significant difference was revealed within both Group 1
and Group 2 individually over time. No statistically significant difference in terms of
intensity, duration and frequency of the headaches between the groups over time was
revealed. However, Group 1 had a greater clinical reduction in intensity, duration and
frequency of headaches when compared to Group 2.
In terms of subjective measurements based on the Numerical Pain Rating Scale scores, a
statistically significant difference was revealed within both Group 1 and Group 2
individually over time. A statistically significant difference in terms of intensity of the
headaches between the groups over time was revealed. The overall clinical improvement
was similar for both groups however Group 1 had a slightly greater clinical reduction in
headache intensity when compared to Group 1.
Conclusion: Both groups showed an overall improvement in the headache symptoms as
well as Posterior Cervical muscle sensitivity; however Group 1 showed a greater clinical
improvement when compared to Group 2.