Thrust Joint Manipulation and Reverse SNAGS (Sustained Natural Apophyseal Glides) in Cervicogenic Headache

Cervicogenic Headache

Thrust joint manipulation, Reverse sustained natural apophyseal glides, Cervicogenic headache, Mobilization and Manipulation

The purpose of the study was to compare the effect of upper cervical thrust joint manipulation and reverse Sustained Natural apophyseal Glide on intensity of pain, pain pressure threshold, range of motion and headache disability in patients with cervicogenic headache. A randomized control trial was conducted at Max Rehab and Physical therapy center, Islamabad. The sample size was calculated through open epi tool is 16. The participants were divided in two groups, 8 participants in experimental group and 8 participants in control group. The study duration was six months. Sampling technique applied was Purposive sampling for recruitment and group randomization using sealed envelope method. Only 20 to 40 years participants with cervicogenic headache and associated symptoms were included in the study. Tools used in this study are Numeric pain rating Scale (NPRS), Algometer, Inclinometer and headache disability index (HDI). Data analyzed through Statistical Package for the Social Sciences (SPSS) version 23.

In 1983 the term cervicogenic headache was introduced in an article in the medical literature. The diagnostic criteria of cervicogenic headache was revised in 1998. The international headache society classified the types of headaches based on their source and characteristics. Studies showed that out of 47% of the patients suffering from headache. 38% are tension-type ; 10% are migraine ; 3% chronic headache and 2.5 to 4.1 % are cervicogenic headaches.The prevalence of cervicogenic headache (CH) after the whiplash is as high as fifty-three percent.Literature revealed that due to varying use of diagnostic measures it is difficult to find out the true prevalence of cervicogenic headache but it ranges from minimum 0.7% to maximum 13.8% in population. The headache which is originated from the cervical spine and pain is referred to the head region is termed as Cervicogenic headache.So, the source of pain is a cervical region located near the base of the skull, pain is referred from the neck region which travels towards the occulo-frontal and temporal areas of the head.Cervicogenic headache is four times more prevalent in females than males. Females suffer more from cervicogenic head due to hormonal imbalances and poor posture. Poor posture includes the forward headache posture which affects the normal biomechanics of the cervical spine and increases the stress on the neck region. The possible cause of cervicogenic headache is said to be the supply of the upper three cervical nerves and its various distributions.Upper three cervical nerves innervate the atlantoaxial joint, atlantooccipital joint, facet joint (C2-C3), suboccipital, paravertebral. upper posterior neck musculature, upper cervical ligaments, spinal dura mater, the vertebral artery, intervertebral disc (C2-C3), trapezius, and sternocleidomastoid muscles. Any of these structures is the possible source of pain and it should be diagnosed first. According to the criteria of the International headache society (IHS) impairment in the function of upper cervical muscles is the source of cervicogenic headache.Patients suffering from cervicogenic headaches show a decrease in their quality of life and also compromised physical abilities as compared to other types of headaches. A multifaced approach is required to treat the patients suffering from cervicogenic headaches. Most commonly pharmacological, non-pharmacological, physical therapy, anesthetic blockade, and sometimes surgical approach is used. A successful intervention requires a multidisciplinary team of physicians including a pain specialist, anesthesiologist, physical therapist, a psychologist to provide a suitable treatment. For the long-lasting effect of the nerve blocks and neurolytic procedures, physical therapy and rehabilitation are required. Different physical therapy treatments including thrust joint manipulation, mobilizations, exercise program, postural education, or modification used as an effective intervention of cervicogenic headache. A combination of these treatments is used to subside the symptoms of CH. Literature review: A systematic and evidence-based search of relevant literature was performed by utilizing PubMed and Google Scholar as search engines and the key words used were sustained natural apophyseal glides, thrust joint manipulation, mulligan, and reverse sustained natural apophyseal glides. The purpose of the literature review is to find out the pre-existing literature regarding the Reverse SNAGS and TJM interventions for cervicogenic headache. According to a systematic review and meta-analysis conducted in 2019 on cervicogenic headache to find out the effectiveness of mobilization and manipulation compared to other conservative interventions in reducing pain and disability. So, it was concluded that both mobilization and manipulation are effective in cervicogenic headache but there were few limitations in the study that only nine studies were included and more quality research are required. Further research is required to observe the long-term effect and other interventions for clinical effectiveness. An overview of systematic reviews was conducted in 2019 on the physical therapy interventions for cervicogenic headache. Results from the reviews stated that manipulation, mobilization, and other conservative interventions were effective in decreasing the frequency of pain and disability in patients suffering from cervicogenic headaches. According to a randomized control trial conducted in 2019 on cervicogenic headache. The purpose of the study was to determine the effectiveness of headache sustained natural apophyseal glide (SNAG) and SNAG rotation separately as well as in combination in patients suffering from cervicogenic headache to reduce the headache and improve activity limitation. The results of the study showed that group that received both SNAG and SNAG rotation technique is effective in reducing cervicogenic headache. A randomized control trail in 2018 on cervicogenic headaches. The purpose of the study was to compare the effectiveness of SNAG and reverse SNAG on patients suffering from cervicogenic headache. Results showed that headache SNAG was more effective than reverse SNAG in treating patients suffering from cervicogenic headache. The major limitation of the study was limited sample size and lack of quantitative equipment for measuring the change. In recent studies, results reported that Sustained Natural Apophyseal Glides and Thrust Joint Manipulation (TJM) were effective in the management of Cervicogenic Headache. However, they did not report if manipulation resulted in superior outcomes compared to mobilization for the management of this population, or secondly no literature was found regarding the reverse SNAGs as an intervention for cervicogenic headache. The purpose of this study is to compare the effects of reverse SNAG and TJM in patients with cervicogenic headache regarding the improvement of headache, pain, pain pressure threshold, and cervical range of motion

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