A critical review of manual therapy use for headache disorders: prevalence, profiles, motivations, communication and self-reported effectiveness

Mulligan manual therapy added to exercise improves headache frequency, intensity and disability more than exercise alone in people with cervicogenic headache: a randomised trial

QUESTION

What is the effect of a 4-week regimen of Mulligan manual therapy (MMT) plus exercise compared with exercise alone for managing cervicogenic headache? Is MMT plus exercise more effective than sham MMT plus exercise? Are any benefits maintained at 26 weeks of follow-up?

DESIGN

A three-armed, parallel-group, randomised clinical trial with concealed allocation, blinded assessment of some outcomes and intention-to-treat analysis.

PARTICIPANTS

Ninety-nine people with cervicogenic headache as per International Classification of Headache Disorders (ICHD-3).

INTERVENTIONS

Participants were randomly allocated to 4 weeks of: MMT with exercise, sham MMT with exercise or exercise alone.

OUTCOME MEASURES

The primary outcome was headache frequency. Secondary outcomes were headache intensity, headache duration, medication intake, headache-related disability, upper cervical rotation range of motion, pressure pain thresholds and patient satisfaction. Outcome measures were collected at baseline and at 4, 13 and 26 weeks.

RESULTS

MMT plus exercise reduced headache frequency more than exercise alone immediately after the intervention (MD between groups in change from baseline: 2 days/month, 95% CI 2 to 3) and this effect was still evident at 26 weeks (MD 4 days, 95% CI 3 to 4). There were also benefits across all time points in several secondary outcomes: headache intensity, headache duration, headache-related disability, upper cervical rotation and patient satisfaction. Pressure pain thresholds showed benefits at all time points at the zygapophyseal joint and suboccipital areas but not at the upper trapezius. The outcomes in the sham MMT with exercise group were very similar to those of the exercise alone group.

CONCLUSIONS

In people with cervicogenic headache, adding MMT to exercise improved: headache frequency, intensity and duration; headache-related disability; upper cervical rotation; and patient satisfaction. These benefits were not due to placebo effects.

TRIAL REGISTRATION

CTRI/2019/06/019506.

[Non-medical Approaches to Headache Prevention: What is the Evidence?]

Primary headaches can be prevented by medication, exercise, behavioral therapy, or lifestyle changes. It is important to note that if medication is used for prophylaxis, non-drug approaches should also be recommended as a complement. Patients often wish to address their headaches without medication. Except for cognitive behavioral therapy and biofeedback, the evidence for nonmedication approaches to headache management has not been definitively established. This article reviews the current literature on the evidence for endurance exercise, relaxation exercises, physical therapy, lifestyle factors, and complementary procedures. For tension-type headache, there is an increasing number of studies reporting positive results from physical therapy; long-term follow-up, however, are still pending. Aerobic endurance exercise has the best evidence as a measure for prevention of migraine. However, other methods can also be used.

Cross-sectional experimental assessment of pain modulation as part of multidimensional profiling of people with cervicogenic headache: protocol for a feasibility study

BACKGROUND

An endogenous pain modulation profile, reflecting antinociceptive and pronociceptive mechanisms, may help to direct management by targeting the involved pain mechanism. For individuals with cervicogenic headache (CeH), the characteristics of such profiles were never investigated. However, the individual nature of experiencing pain demands profiling within a multidimensional framework including psychosocial lifestyle characteristics. The objective of the current protocol is to assess the pain modulation profile, which includes psychosocial lifestyle characteristics among people with CeH.

METHODS AND ANALYSIS

A protocol is described to map pain modulation profiles in people with CeH. A cross-sectional non-randomised experimental design will be used to assess feasibility of mapping these profiles. The pain modulation profile is composed based on results on the Depression, Anxiety, Stress Scale, Pittsburgh Sleep Quality Index, Headache Impact Test and on responses to temporal summation of pain (pinprick), conditioned pain modulation and widespread hyperalgesia (mechanical pressure pain threshold and cuff algometry). Primary analyses will report results relating to outcomes on feasibility. Secondary analyses will involve an analysis of proportions (%) of the different psychosocial lifestyle profiles and pain profiles.

ETHICS AND DISSEMINATION

Ethical approval was granted by the Ethics Committee Research UZ/KU Leuven (Registration number B3222024001434) on 30 May 2024. Results will be published in peer-reviewed journals, at scientific conferences and, through press releases. Protocol V.3. protocol date: 3 June 2024.

Can upper cervical manual therapy affect the blink reflex in subjects with migraine and neck pain?

BACKGROUND

Neck pain is a common complaint among migraineurs possibly due to the anatomic connections between cervical and trigeminal afferents in the trigeminocervical complex (TCC). Manual therapy (MT) is used in the management of headache disorders, with demonstrable neurophysiological effects. The blink reflex (BR) is one method of analyzing neurophysiological effects in headache patients. The purpose of this study was to investigate the effect of upper cervical spine MT on BR in subjects with migraine and neck pain.

METHODS & MATERIALS

Twenty subjects were assigned to a medication plus MT (MedMT) group (n = 10) and medication plus sham MT (sham MT) group (n = 10). After random assignment, all patients underwent testing for the BR (R1, R2, R2c responses). Then, subjects in group MedMT and group sham MT received either 4 sessions of MT or sham MT to the upper cervical spine. After completion of the intervention, BR testing was repeated.

RESULTS

There were no significant differences in both side R1 latency between group MT and group sham MT (P > 0.050). For both sides, R2 latencies were significantly prolonged in MedMT group compared with sham MT group (P < 0.050). Subjects in MedMT group showed significant prolongation in right and left R2c latency compared with sham MT group (P < 0.050).

DISCUSSION

The present study demonstrated that upper cervical MT affected trigeminal nociceptive neurotransmission in subjects with migraine and neck pain as reflected by changes in the BR. The increase in BR late response latencies of BR indicates an inhibitory effect of upper cervical spine MT on the TCC in these subjects. Trial Registration: The trial design was registered at the Iranian Registry of Clinical Trials (IRCT ID: IRCT20160621028567N2, url: https://www.irct.ir/) before the first patient was enrolled.

Individual endogenous pain modulation profiles within a multidimensional context of people with cervicogenic headache - A retrospective exploratory study

BACKGROUND

One in four individuals with cervicogenic headache (CeH) are unresponsive to therapy. Such therapy involves predominantly biomedical interventions targeting the upper-cervical spine. A recurring theme within musculoskeletal practice is the multidimensional nature and substantial heterogeneity of the condition. Such heterogeneity might be a reason for failure of a biomedical approach. Therefore, future studies investigating efficacy of managing CeH should ideally be based on identification, and better understanding of the heterogeneity of this population based on a comprehensive evaluation of clinically relevant contributing factors.

OBJECTIVES

The objective was to map profiles of individuals with CeH based on pain modulation within a multidimensional context.

DESIGN

Pain Modulation Profiles (PMPs) of 18 adults (29-51 years) with CeH were mapped retrospectively.

METHOD

The PMPs consisted of a Pain-Profile (bilateral suboccipital, erector spinae, anterior tibialis pressure pain thresholds), a Psycho-Social-Lifestyle-Profile (Depression, Anxiety, Stress Scale, Headache Impact test, Pittsburgh Sleep Quality Index), or a combination of both. Individual results were compared to normative data. Two Pain-Profiles were defined: normal or altered. Psycho-Social-Lifestyle-Profiles were categorized based on the number of altered psycho-social-lifestyle factors (range 0-5).

RESULTS

Mapping PMPs in individuals with CeH resulted in 50% presenting with a dominant altered Pain-Profile, 16.7% with a dominant altered Psycho-Social-Lifestyle-Profile, and 5.6% with dominant alterations in both Pain-Profile and Psycho-Social-Lifestyle-Profile.

CONCLUSION

Our results indicate heterogeneity of PMPs within the CeH population. Replication of these results is needed through dynamic assessment of the Pain-Profile before evaluating if these profiles can help patient-stratification.

Cervical Impairments in Subjects with Chronic Migraine: An Observational Study

OBJECTIVE

The aim of this investigation was to compare the thickness of the deep local muscles in the neck region, as well as local and widespread sensitivity and functionality, between individuals with migraine and healthy control subjects.

METHODS

An observational study was carried out in accordance with the STROBE statements. The flexor longus colli and multifidus, two neck-stabilizing muscles, were measured using B-mode ultrasound imaging. The upper trapezius, masseter, temporalis, anterior tibialis, and median nerve all underwent bilateral pressure-pain threshold (PPT) assessments. The statistical program SPSS 29.0 was used to implement the Mann-Whitney U test and Chi-squared test. Spearman Rho was utilized to establish the correlations between the variables.

RESULTS

Sixty participants were enrolled in the study. The subjects, who were matched in terms of age, gender, and body mass index (BMI), were equally divided into migraine and control groups. No significant differences between the groups were found in the multifidus CSA regarding both sides at rest (right: p = 0.625; left: p = 0.203). However, in contraction, the multifidus CSA showed a significant decrease on the left side in the patients with migraine compared to the controls (p = 0.032), but no significant differences were found in the right multifidus CSA in contraction between the two groups (p = 0.270). In comparison to the healthy volunteers, the migraine sufferers showed a substantial reduction in CSA in the longus colli muscle on both the left side (p = 0.001) and the right side at rest (p = 0.003), as well as in the CSA of the left longus colli in contraction (p < 0.001). Furthermore, the migraine patients showed significantly lower PPT compared to the healthy subjects in local and widespread areas bilaterally. All the parameters revealed higher sensitization in the migraine group in the following areas: the right and left temporal regions (p < 0.001), the right and left upper trapezius (p < 0.001 and p < 0.01, respectively), the right and left masseter muscles (p < 0.01), the right and left median nerves (p < 0.001 and p < 0.01, respectively), and the right and left anterior tibialis muscles (p < 0.001). In terms of the craniocervical flexion test (CCFT), the migraine patients demonstrated significantly lower values than the healthy subjects (p < 0.001). A moderate positive correlation was noted between the PPT in the right temporalis muscle and that in the left longus colli and the right multifidus in contraction. The PPT in the right temporalis muscle also exhibited a positive correlation with the CCFT, although this correlation was low. Between the PPT values, the upper trapezius on both sides showed a moderate positive correlation with the median nerve bilaterally.

CONCLUSIONS

This research suggests that individuals with migraine may experience local and widespread pain sensitization. A decrease in functionality due to the low muscle endurance of the deep cervical muscles is also accompanied by low values of muscle thickness in contraction. These findings may help to select more accurate treatment approaches for patients with migraine.

Effects of diacutaneous fibrolysis in patients with tension-type headache: A randomized controlled trial

BACKGROUND

Manual therapy appears to be effective for the relief of tension-type headache (TTH), just as diacutaneous fibrolysis (DF) has shown to be a beneficial technique for the relief of symptoms in other dysfunctions. However, no studies have evaluated the potential beneficial effect of DF in TTH. The aim of this study is to analyze the effect of three sessions of DF in patients with TTH.

METHODS

Randomized controlled trial in 86 subjects (43 intervention/ 43 control group). The headache frequency, the headache intensity, the pressure pain thresholds (PPTs) at trapeziometacarpal joint, upper trapezius, suboccipital, frontal and temporal muscles, parietal sutures and the cervical mobility were measured at baseline, at the end of the third intervention and one-month after the last intervention.

RESULTS

Statistically significant differences with p values <0.05 were observed between groups in favor of the intervention group in the one-month follow-up in the following variables: headache frequency, headache intensity, flexion, extension, right and left side-bending, right and left rotation, PPTs in left trapeziometacarpal joint, right suboccipital muscle, right and left temporal muscle, left frontal muscle and right and left parietal.

CONCLUSIONS

DF provides a beneficial effect in reducing headache frequency, relieving pain, and improving cervical mobility in patients with TTH.

Inter-individual variability in mechanical pain sensation in patients with cervicogenic headache: an explorative study

Currently, evidence for effective physiotherapy interventions in patients with cervicogenic headache (CeH) is inconsistent. Although inter-individual variability in pain response is predictive for successful physiotherapy interventions, it was never explored in patients with CeH. Therefore the objective of the current study was to explore inter-individual variability in mechanical pain sensation, and its association with biopsychosocial-lifestyle (BPSL) characteristics in patients with CeH. A cross-sectional explorative analysis of inter-individual variability in mechanical pain sensation in 18 participants with CeH (29-51 years) was conducted. Inter-individual variability in mechanical pain sensation (standard deviations (SDs), F-statistics, Measurement System Analysis) was deducted from bilateral pressure pain thresholds of the suboccipitals, erector spine, tibialis anterior. BPSL-characteristics depression, anxiety, stress (Depression Anxiety Stress Scale-21), quality of life (Headache Impact Test-6), sleep-quality (Pittsburgh Sleep Quality Index), and sedentary time (hours/week) were questioned. Inter-individual variability in mechanical pain sensation explained 69.2% (suboccipital left), 86.8% (suboccipital right), 94.6% (erector spine left), 93.2% (erector spine right), 91.7% (tibialis anterior left), and 82% (tibialis anterior right) of the total variability in patients with CeH. The significant p-values and large F-statistic values indicate inter-individual differences in SDs. Significant associations between (1) lower quality of life and lower SDs of the suboccipital left PPT (p .005), and (2) longer sedentary time and higher SDs of the suboccipital left PPT (p .001) were observed. Results from our explorative study could suggest inter-individual variability in mechanical pain sensation at the left suboccipitals which associates with quality of life and sedentary time. These novel findings should be considered when phenotyping patients and 'individually' match interventions.

The effectiveness of manual and exercise therapy on headache intensity and frequency among patients with cervicogenic headache: a systematic review and meta-analysis

BACKGROUND

Cervicogenic headache is a secondary headache, and manual therapy is one of the most common treatment choices for this and other types of headache. Nonetheless, recent guidelines on the management of cervicogenic headache underlined the lack of trials comparing manual and exercise therapy to sham or no-treatment controls. The main objective of this systematic review and meta-analysis was to assess the effectiveness of different forms of manual and exercise therapy in people living with cervicogenic headache, when compared to other treatments, sham, or no treatment controls.

METHODS

Following the PRISMA guidelines, the literature search was conducted until January 2022 on MEDLINE, CENTRAL, DOAJ, and PEDro. Randomized controlled trials assessing the effects of manual or exercise therapy on patients with cervicogenic headache with headache intensity or frequency as primary outcome measures were included. Study selection, data extraction and Risk of Bias (RoB) assessment were done in duplicate. GRADE was used to assess the quality of the evidence.

RESULTS

Twenty studies were included in the review, with a total of 1439 patients. Common interventions were spinal manipulation, trigger point therapy, spinal mobilization, scapulo-thoracic and cranio-cervical exercises. Meta-analysis was only possible for six manual therapy trials with sham comparators. Data pooling showed moderate-to-large effects in favour of manual therapy for headache frequency and intensity at short-term, small-to-moderate for disability at short-term, small-to-moderate for headache intensity and small for headache frequency at long-term. A sensitivity meta-analysis of low-RoB trials showed small effects in favor of manual therapy in reducing headache intensity, frequency and disability at short and long-term. Both trials included in the sensitivity meta-analysis studied spinal manipulation as the intervention of interest. GRADE assessment showed moderate quality of evidence.

CONCLUSION

The evidence suggests that manual and exercise therapy may reduce headache intensity, frequency and disability at short and long-term in people living with cervicogenic headache, but the overall RoB in most included trials was high. However, a sensitivity meta-analysis on low-RoB trials showed moderate-quality evidence supporting the use of spinal manipulation compared to sham interventions. More high-quality trials are necessary to make stronger recommendations, ideally based on methodological recommendations that enhance comparability between studies. Trial registration The protocol for this meta-analysis was pre-registered on PROSPERO under the registration number CRD42021249277.

The Addition of Diacutaneous Fibrolysis to a Pharmacological Intervention in Patients with Tension-Type Headache: A Randomized Controlled Trial

Background: Tension-type headache (TTH) is the most common headache worldwide. Pharmacological interventions are the most investigated therapies in patients with TTH. The addition of physical therapy treatments such as diacutaneous fibrolysis (DF) may have promising results. The aim of this study was to investigate the addition of three sessions of DF to a pharmacological intervention in patients with TTH. Methods: A single-blinded randomized controlled trial was carried out. Participants were randomly assigned to the standard care group or to the DF group. Both groups received a pharmacological intervention. Three sessions of DF in the thoracic and cervicocranial region were added in the DF group. The impact caused by headache (HIT-6), headache intensity, and cervical range of motion were measured by blinded assessors at baseline, after the intervention, and at 1 month follow-up. Results: Eighty-two patients with TTH were included (41 standard care group; 41 DF group). Statistically significant differences were found between both groups in all the variables after the intervention and at 1 month follow-up (p < 0.001). No adverse effects or side-effects were reported during the study. Conclusions: The addition of three sessions of DF to a pharmacological therapy provided improvements in the impact caused by headache, headache intensity, and cervical range of motion after the intervention and at 1 month follow-up compared to a pharmacological therapy in isolation. Further research is needed to investigate long-term effects.

Potential Add-On Effects of Manual Therapy Techniques in Migraine Patients: A Randomised Controlled Trial

Objective: To ascertain whether the combination of soft tissue and articulatory manual techniques is more effective than either one of these techniques alone for reducing migraine impact; Methods: Seventy-five participants with migraine were randomly divided into three groups (n = 25 per group): (i) soft tissue (STG), (ii) articulatory (AG), and (iii) combined treatment (STAG). Pain, frequency of occurrence, duration, disability and impact, depression and anxiety levels, and perception of change were analysed at baseline, post intervention (T2) and at four-week follow-up (T3); Results: STAG showed a significantly greater reduction in pain versus STG and AG at T2 (p < 0.001; p = 0.014) and at T3 (p < 0.001; p = 0.01). Furthermore, STAG achieved a significantly greater reduction in pain duration versus STG at T2 (p = 0.020) and T3 (p = 0.026) and a greater impression of change versus STG (p = 0.004) and AG (p = 0.037) at T3. Similar effects were observed in all groups for frequency of occurrence, migraine disability, impact, and depression and anxiety levels; Conclusions: A combined manual therapy protocol including soft tissue and articulatory techniques yields larger improvements on pain and perception of change than either technique alone, yet the three therapeutic approaches show similar benefits for reducing pain, disability and impact caused by the migraine, depression or anxiety levels.

Exercise and Manual Therapy for the Treatment of Primary Headache: An Umbrella and Mapping Review

OBJECTIVE

The main aim of this study was to assess through systematic review the efficacy of exercise and manual therapy (MT) interventions in individuals with primary headache.

METHODS

In this umbrella review, 2 authors reviewed systematic reviews by searching the Cochrane Database of Systematic Reviews, MEDLINE, PEDro, Web of Science, and Google Scholar. Systematic reviews that evaluated the effectiveness of MT. Exercise-based interventions, or both in patients with primary headaches were included. Methodological quality was analyzed using the ROBIS scale, and the strength of evidence was established according to the Grading Criteria of the Physical Activity Guidelines Advisory Committee.

RESULTS

Thirty-one systematic reviews containing 79 trials and involving 9103 patients were included. The 7 exercise-related systematic reviews reported beneficial effects on primary headache based on unclear to moderate evidence. Of the 23 MT-related systematic reviews, 11 reported enhanced effectiveness compared with usual care; however, overall heterogeneity and risk of bias were high. Systematic reviews that evaluated the effectiveness of MT, exercise-based interventions, or both in patients with primary headaches were included.

CONCLUSION

Results show that exercise could be an effective therapy for the treatment of primary headache, with moderate to limited quality of evidence regarding the positive effects in terms of pain intensity and frequency and duration of headache. Moderate quality of evidence was found regarding the ability of MT to reduce pain intensity in patients with tension-type headaches, but quality of evidence was limited in terms of frequency of headache and disability and pain reduction in patients with migraine.

IMPACT

Exercise could be an effective treatment in patients with primary headache. Manual therapy showed limited evidence to reduce pain intensity in patients with tension-type headache. It is not possible to establish a preferential exercise protocol or MT program, so psychosocial and behavioral variables need to be considered in future studies.

Effectiveness of Manual Therapy and Acupuncture in Tension-Type Headache: A Systematic Review

Tension-type headache is one of the most prevalent types of headache. The common presentation is a mild-to-moderate dull aching pain around the temporal region, like a tight band around the forehead, neck, shoulder, and sometimes behind eyes. It can occur at any age but most commonly in the adult female population. The exact underlying mechanism is not clear but muscle tension is one of the main causes, which can be due to stress and anxiety. There are several non-pharmacologic treatment options suggested for tension-type headaches, such as cognitive behavioral therapy, relaxation, biofeedback, acupuncture, exercise, manual therapy, and even some home remedies. This systematic review was performed to evaluate the effectiveness of acupuncture and manual therapy in tension-type headaches. The literature search was primarily done on PubMed. Eight articles involving 3846 participants showed evidence that acupuncture and manual therapy can be valuable non-pharmacological treatment options for tension-type headaches. Acupuncture was compared to routine care or sham intervention. Acupuncture was not found to be superior to physiotherapy, exercise, and massage therapy. Randomized controlled trials done in various countries showed manual therapy also significantly decreased headache intensity. Manual therapy has an efficacy that equals prophylactic medication and tricyclic antidepressants in treating tension-type headaches. The available data suggests that both acupuncture and manual therapy have beneficial effects on treating symptoms of tension-type headache. However, further clinical trials looking at long-term benefits and risks are needed.

Exploring multidimensional characteristics in cervicogenic headache: Relations between pain processing, lifestyle, and psychosocial factors

OBJECTIVE

Although multidimensional interventions including physiotherapy, psychology, and education are generally recommended in managing headache, and to prevent chronification, such approach is lacking in cervicogenic headache (CeH). Therefore, exploring CeH within a biopsychosocial framework is deemed an essential first step.

METHODS

Non-randomized cross-sectional design to compare pain processing, lifestyle, and psychosocial characteristics between 18 participants with CeH (CeH group) (40.2 ± 10.9 years) and 18 matched controls (control group) (39.2 ± 13.1 years). Pain processing characteristics included degree of central sensitization (Central Sensitization Inventory), and (extra)-cephalic pressure pain thresholds (kPa/cm²/s). Lifestyle characteristics included sleep quality (Pittsburgh Sleep Quality Index), physical activity, screen time, and sedentary time (hours a week). Psychosocial characteristics included degree of depression, anxiety and stress (Depression Anxiety Stress Scale-21), and quality of life (Headache Impact Test-6).

RESULTS

Pain processing characteristics: More (p = .04) participants in the CeH group showed higher degrees of central sensitization compared to the control group. Lower (p < .05) (extra)-cephalic pressure pain thresholds were revealed in the CeH group compared to the control group for each muscle. Lifestyle and psychosocial characteristics: Compared to the control group, sleep quality and headache-related quality of life were worse (p < .0001) in the CeH group. Severe to extreme stress was experienced by more participants in the CeH group (p = .02). Further, significant relations between pain processing and (1) lifestyle characteristics and (2) psychosocial characteristics were seen in the CeH group.

CONCLUSION

Exploring multidimensional characteristics in CeH exposed relations between pain processing, lifestyle, and psychosocial characteristics. These novel findings fill a gap in the current scientific literature, and highlight the need for outcome research targeting lifestyle and psychosocial factors.

Effects of therapeutic and aerobic exercise programs in temporomandibular disorder-associated headaches

Objective

To assess the effects of three 8-week exercise programs on the frequency, intensity, and impact of headaches in patients with headache attributed to temporomandibular disorder (TMD).

Methodology

Thirty-six patients diagnosed with headache attributed to TMD participated in the study and were divided into three groups of 12 patients: a therapeutic exercise program (G1, mean age: 26.3±5.6 years), a therapeutic and aerobic exercise program (G2, mean age: 26.0±4.6 years), and an aerobic exercise program (G3, 25.8±2.94 years). Headache frequency and intensity were evaluated using a headache diary, and the adverse headache impact was evaluated using the Headache Impact Test (HIT-6). The intensity was reported using the numerical pain rating scale. These parameters were evaluated twice at baseline (A01/A02), at the end of the 8-week intervention period (A1), and 8–12 weeks after the end of the intervention (A2).

Results

At A1, none of the G2 patients reported having headaches, in G1, only two patients reported headaches, and in G3, ten patients reported headache. The headache intensity scores (0.3 [95% CI: -0.401, 1.068]), (0.0 [95% CI: -0.734, 0.734]) and HIT-6 (50.7 [95% CI: 38.008, 63.459]), (49.5 [95% CI: 36.808, 62.259]), significantly decreased in G1 and G2 at A1. At A2 headache intensity scores (0.5 [95% CI: -0.256, 1.256]), (0.0 [95% CI: -0.756, 0.756]) and HIT-6 (55.1 [95% CI: 42.998, 67.268]), (51.7 [95% CI: 39.532, 63.802]) in G1 and G2 haven’t change significantly. The effects obtained immediately after the completion of the intervention programs were maintained until the final follow-up in all groups.

Conclusion

The programs conducted by G1 (therapeutic exercises) and G2 (therapeutic and aerobic exercise) had significant results at A1 and A2.

Instrumental assessment of physiotherapy and onabolulinumtoxin-A on cervical and headache parameters in chronic migraine

Introduction

The purpose of the present study is to compare the effect of the physiotherapy to onabolulinumtoxin-A, and their combination, in relation to cervical and headache parameters in patients with chronic migraine.

Methods

This is an observational cohort study conducted by a headache center and a physiotherapy degree course on 30 patients with chronic migraine. The patients were distributed in three groups of treatments for three months: onabolulinumtoxin-A only, physiotherapy only, and onabolulinumtoxin-A plus physiotherapy. The patients were evaluated, before and after each treatment, using the following: the postural assessment software SAPO for the forward head posture; the CROM goniometer for the cervical range of motion; the Migraine Disability Assessment Score for headache parameters.

Results

After 3 months of each treatment, the scores obtained for the headache-related disability and the frequency of migraine decreased significantly for all groups, but the pain intensity scores changed significantly only in the onabolulinumtoxin-A (p = 0.01) and in the onabolulinumtoxin-A plus physiotherapy groups (p = 0.007). On the other hand, the forward head posture was reduced significantly in the physiotherapy (p = 0.002) and in the onabolulinumtoxin-A plus physiotherapy groups (p = 0.003). The cervical range of motion increased significantly in certain directions in the physiotherapy group and in the onabolulinumtoxin-A plus physiotherapy groups.

Conclusions

The physiotherapy improved the cervical parameters. The onabolulinumtoxin-A decreased pain intensity. As a consequence, it can be said that the combined treatment was more useful than a mono-therapy alone. From our results, it can be concluded that onabolulinumtoxin-A plus physiotherapy could be a good option in the management of chronic migraine.

Supplementary Information

The online version contains supplementary material available at 10.1007/s10072-021-05491-w.

Osteopathic empirical research: a bibliometric analysis from 1966 to 2018

Background

Despite the increasing use of osteopathy, a manipulative complementary and alternative medicine therapy, in the general population, its efficacy continues to be debated. In this era of evidence-based practice, no studies have previously reviewed the scientific literature in the field to identify published knowledge, trends and gaps in empirical research. The aims of this bibliometric analysis are to describe characteristics of articles published on the efficacy of osteopathic interventions and to provide an overall portrait of their impacts in the scientific literature.

Methods

A bibliometric analysis approach was used. Articles were identified with searches using a combination of relevant MeSH terms and indexing keywords about osteopathy and research designs in MEDLINE and CINAHL databases. The following indicators were extracted: country of primary author, year of publication, journals, impact factor of the journal, number of citations, research design, participants’ age group, system/body part addressed, primary outcome, indexing keywords and types of techniques.

Results

A total of 389 articles met the inclusion criteria. The number of empirical studies doubled every 5 years, with the United States, Italy, Spain, and United Kingdom being the most productive countries. Twenty-three articles were cited over 100 times. Articles were published in 103 different indexed journals, but more than half (53.7%) of articles were published in one of three osteopathy-focused readership journals. Randomized control trials (n = 145; 37.3%) and case reports (n = 142; 36.5%) were the most common research designs. A total of 187 (48.1%) studies examined the effects of osteopathic interventions using a combination of techniques that belonged to two or all of the classic fields of osteopathic interventions (musculoskeletal, cranial, and visceral).

Conclusion

The number of osteopathy empirical studies increased significantly from 1980 to 2014. The productivity appears to be very much in sync with practice development and innovations; however, the articles were mainly published in osteopathic journals targeting a limited, disciplinary-focused readership.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12906-021-03366-3.

Australian osteopaths as non-medical prescribers: comparison of healthcare practitioner characteristics from a nationally representative survey

The study aimed to compare the characteristics of Australian osteopaths who definitely agree that prescribing scheduled medicines is part of their future scope of practice with those who do not. A secondary analysis of a cross-sectional survey of osteopaths from an Australian practice-based research network was undertaken. Demographic, practice and treatment characteristics were identified using inferential statistics and backward linear regression modelling. Over one-quarter (n=257, 25.9%) of the total participants (n=992) indicated that they 'definitely' agree that osteopaths should seek prescription rights. Adjusted odds ratios (OR) suggested these osteopaths were more likely to engage in medication discussions with patients (OR 1.88), frequently manage migraines (OR 1.68) and seek increased practice rights for referrals to medical specialists (OR 2.61) and diagnostic imaging (OR 2.79). Prescribing as part of the future scope of practice for Australian osteopaths is associated with patient management (medication discussions) and practice characteristics (increased referral rights for specialists and diagnostic imaging) that warrant additional investigation. Understanding of the practice, clinical and patient management characteristics of Australian osteopaths who see prescribing as part of the future scope of practice informs the case for regulatory and health policy changes for prescribing scheduled medicines.

Spinal manipulation for the management of cervicogenic headache: A systematic review and meta-analysis

BACKGROUND

Spinal manipulative therapy (SMT) is frequently used to manage cervicogenic headache (CGHA). No meta-analysis has investigated the effectiveness of SMT exclusively for CGHA.

OBJECTIVE

To evaluate the effectiveness of SMT for CGHA.

DATABASES AND DATA TREATMENT

Five databases identified randomized controlled trials comparing SMT with other manual therapies. The PEDro scale assessed the risk-of-bias. Pain and disability data were extracted and converted to a common scale. A random effects model was used for several follow-up periods. GRADE described the quality of evidence.

RESULTS

Seven trials were eligible. At short-term follow-up, there was a significant, small effect favouring SMT for pain intensity (mean difference [MD] -10.88 [95% CI, -17.94, -3.82]) and small effects for pain frequency (standardized mean difference [SMD] -0.35 [95% CI, -0.66, -0.04]). There was no effect for pain duration (SMD - 0.08 [95% CI, -0.47, 0.32]). There was a significant, small effect favouring SMT for disability (MD - 13.31 [95% CI, -18.07, -8.56]). At intermediate follow-up, there was no significant effects for pain intensity (MD - 9.77 [-24.21 to 4.68]) and a significant, small effect favouring SMT for pain frequency (SMD - 0.32 [-0.63 to - 0.00]). At long-term follow-up, there was no significant effects for pain intensity (MD - 0.76 [-5.89 to 4.37]) and for pain frequency (SMD - 0.37 [-0.84 to 0.10]).

CONCLUSION

For CGHA, SMT provides small, superior short-term benefits for pain intensity, frequency and disability, but not pain duration, however, high-quality evidence in this field is lacking. The long-term impact is not significant.

SIGNIFICANCE

CGHA are a common headache disorder. SMT can be considered an effective treatment modality, with this review suggesting it providing superior, small, short-term effects for pain intensity, frequency and disability when compared with other manual therapies. These findings may help clinicians in practice better understand the treatment effects of SMT alone for CGHA.

Interprofessional Collaboration in Dentistry: Role of physiotherapists to improve care and outcomes for chronic pain conditions and sleep disorders

Physiotherapists can manage chronic pain patients by using technical interventions such as mobility, strengthening, manual therapy, or flexibility in a specific and functional manner, being a key component of a multidisciplinary team. Dentists are involved in the management of different chronic pain conditions such as temporomandibular disorders and sleep disorders such as obstructive sleep apnea. However, they are frequently unaware of the benefits of collaborating with physical therapists. In this review, the collaboration of physical therapists and dentists will be explored when managing orofacial pain, headaches, and sleep disorders. The physical therapist is important in the management of these disorders and also in the screening of risk factors.

Neck treatment compared to aerobic exercise in migraine: A preference-based clinical trial

Objectives:

The main objective of this study was to compare the effectiveness of aerobic exercise with physiotherapy. A second objective was to evaluate whether patients with pain referred to the head during manual palpation will benefit more from physiotherapy than patients with local or no pain.

Methods:

A total of 103 patients with migraine received physiotherapy ( n = 79) or supervised aerobic exercise ( n = 24) according to their preference as an add-on treatment. Both groups had the same contact time with a specialized physiotherapist. The primary outcome measure was headache frequency during the 4 weeks after the intervention. Eighty-seven patients were analyzed at the primary end point ( n = 69 in the physiotherapy group; n = 18 in the aerobic exercise group). A follow-up assessment was conducted 3 months after the final intervention.

Results:

During the initial assessment of the upper cervical spine, 17 patients reported no pain, 45 local pain, and 25 referred pain to the head. Patients in the physiotherapy group had a mean reduction of 1.8 days (standard deviation (SD) 6.07), while patients in the aerobic exercise group had a mean reduction of 1.2 days (SD 4.27) at the primary end point. This difference was not statistically significant ( p = 0.8). The largest improvement was noted in the group that showed referred pain to the head and received physiotherapy (2.13 days (SD 7.82)). Only patients in the physiotherapy group reported a subjectively perceived general improvement.

Conclusions:

Patients had a strong preference for physiotherapy. Both groups showed small reductions in headache frequency. Effects were superior after physiotherapy but not statistically significant. Patients with pain referred to the head responded best to a physiotherapy intervention.

Clinical Reasoning Behind Non-Pharmacological Interventions for the Management of Headaches: A Narrative Literature Review

Headache is the clinical syndrome most commonly observed by neurologists in daily practice. Pharmacological and non-pharmacological treatments are commonly used for the management of headaches; however, the clinical reasoning behind these interventions is not properly applied. We conducted a narrative literature review using as data sources for academic PubMed, MEDLINE, EMBASE, AMED, CINAHL, EBSCO, PEDro, Cochrane Database of Systematic Reviews, Cochrane Collaboration Trials Register, and SCOPUS. This narrative literature review mainly considered systematic reviews, meta-analyses, randomised clinical trials, and expert opinions published after the year 2000 discussing clinical reasoning for application of non-pharmacological interventions in individuals with tension-type, migraine, and cervicogenic headaches. After the data extraction, we organized the literature thematically as follows: (1) mapping of theoretical aspects of non-pharmacological interventions; (2) summarizing most updated literature about effectiveness of non-pharmacological interventions grouped by targeted tissue and headache; (3) identifying research gaps in the existing literature and proposing hypotheses for better understanding of current clinical reasoning. We found that there are many non-pharmacological treatment strategies used for headaches, including beyond the tissue-based impairment treatments (bottom-up) and strategies targeting the central nervous system (top down). Bottom-up strategies include joint-biased, soft-tissue biased, or needling interventions, whereas top-down strategies include exercise and cognitive interventions. Evidence shows that the effectiveness of these interventions depends on the application of proper clinical reasoning, since not all strategies are effective for all headaches. For instance, evidence of non-pharmacological interventions is more controversial for migraines than for tension-type or cervicogenic headaches, since migraine pathogenesis involves activation of sub-cortical structures and the trigemino- vascular system, whereas pathogenesis of tension-type or cervicogenic headaches is most associated to musculoskeletal impairments of the cervical spine. We conclude that current literature suggests that not all non-pharmacological interventions are effective for all headaches, and that multimodal, not isolated, approaches seem to be more effective for patients with headaches. Most published studies have reported small clinical effects in the short term. This narrative literature review provides some hypotheses for discrepancies in the available literature and future research. Clinical reasoning should be applied to better understand the effects of non-pharmacological interventions.

Remedial Massage Therapy Interventions Including and Excluding Sternocleidomastoid, Scalene, Temporalis, and Masseter Muscles for Chronic Tension Type Headaches: a Case Series

BACKGROUND

Tension-type headache (TTH) is the most prevalent primary headache type world-wide. Chronic TTH (CTTH) of >15 headache-affected days per month for > 3 months can cause considerable pain and disability.

PURPOSE

This case series aimed to investigate whether massage therapy interventions were more effective when muscles of the anterior neck, jaw, and cranium were included.

DESIGN

Four female clients suffering CTTH received six pre-determined massage therapy interventions, 45 minutes each, over three weeks. Case A and B (exclusion cases) received interventions addressing shoulder, posterior neck, and occiput muscles; Case C and D (inclusions cases) received interventions addressing the same areas as well as the sternocleidomastoid, scalene, temporalis, and masseter muscles.

INTERVENTION

Treatment included myofascial trigger point release, neuromuscular therapy, and consideration of central sensitization mechanisms present in CTTH.

OUTCOME MEASURES

Headache frequency (primary), intensity, and duration (secondary) were recorded via headache diaries for baseline measures (one week), interventions (three weeks), and a runout period (two weeks). Secondary measures also included a headache disability inventory (HDI) at baseline, intervention conclusion, and final measures. After final measures, clients received stretching education and four weeks later, a follow-up phone conversation to note subjective headache reports.

RESULTS

All cases had headache frequency and HDI score reductions, while intensity and duration measures fluctuated. At final measures, exclusion Case A and both inclusion cases (C and D) had headache frequency reductions to below CTTH diagnostic criteria, clinically meaningful (> 16%) HDI score reductions, and subjectively reported continued improvements after study completion. Inclusion cases overall had greater decreases in headache frequency and HDI measures.

CONCLUSION

Comparative results suggest there may be additional benefit in reducing headache frequency and disability with inclusion of anterior neck, jaw, and cranial muscles in treatment strategies of CTTH. However, limited sample size makes it difficult to rule out outliers or individual variables. Further investigation is recommended.

A critical review of self-care for sleep disturbances: prevalence, profile, motivation, perceived effectiveness and medical provider communication

Objective

This study aims to undertake the first critical review of self-care use among adults with sleep disturbances by focusing on the prevalence of self-care—the self-determined and self-administered use of products or practices—by adults with sleep disturbances.

Methods

A comprehensive search of 2006–2016 international literature in CINAHL, AMED, Medline and EMBASE databases was conducted. The search was confined to empirical research findings regarding sleep disturbances - as indicated by a validated sleep scale/index or clinician diagnosis.

Results

Of the 21 articles included in this review, only three reported on sleep disturbances other than insomnia disorder (ID) or insomnia symptoms (IS). Overall, a high prevalence of self-care use is reported among adults with sleep disturbances, particularly for ID and IS. Self-care products and practices are more likely to be used by adults with sleep disturbances, than those without sleep disturbances. Commonly used self-care products and practices include OTC hypnotics, antihistamines, diphenhydramine products, diet, exercise, painkillers, herbal medicines, vitamins, minerals and dietary supplements, yoga, tai chi, Qigong, meditation, exercise and relaxation.

Conclusions

Many adults with sleep disturbances–particularly ID or IS–frequently use self-care products and practices. Self-care products are also used concomitantly with conventional prescription medications without disclosure to medical professionals. The current literature is of varied methodological caliber, frequently relies on small sample sizes and low-quality data collection therefore further rigorous health services research is required. There is an especial paucity of data regarding self-care for sleep disturbances such as restless legs syndrome and obstructive sleep apnea. Healthcare providers may find it beneficial to actively ask patients about their use of self-care for sleep disturbances to help avoid harmful drug-drug or drug-herb interactions.

Manual therapy as a prophylactic treatment for migraine: design of a randomized controlled trial

Background

People with migraine often experience disability with serious consequences for their social life and work productivity. The pharmacological prophylactic management of migraine is effective in reducing migraine attacks. However, many people are reluctant to use daily prophylactic medication, leading to a demand for non-pharmacological treatment options. We present the design for and discuss the feasibility of a pragmatic, randomized controlled trial on the effectiveness of a multimodal manual therapy (MT) treatment compared to usual care by the general practitioner (GP) for the prophylactic treatment of migraine.

Methods

Eligible participants will be recruited in primary care using the International Classification of Headache Disorders III criteria for migraine of the International Headache Society. Participants will be randomized to either multimodal MT treatment or usual care provided by the GP. GPs will be asked to treat the usual care group according to the Dutch GP guideline for headache. The multimodal MT intervention will include manual pressure techniques, neck muscle-strength exercises and mobilization of the cervical and thoracic spine.

The trial will consist of a 12-week treatment period and follow-up measurements at 12, 26 and 52 weeks. The primary outcome measure is the number of migraine days per 4 weeks, assessed with a headache diary. Secondary outcome measures are the number of migraine attacks, medication use, disability due to headache, headache intensity, number of participants reporting a 50% migraine reduction, measurement of cervical pressure pain thresholds, presence of allodynia, endurance of cervical flexor muscles, days of absence of work and global perceived effect.

Discussion

The results of the trial will show whether a multimodal MT intervention is an effective non-pharmacological treatment option for people with migraine.

Trial registration

Dutch Trial Register, NL7504. Registered on 7 February 2019.

The features and burden of headaches within a chiropractic clinical population: A cross-sectional analysis

OBJECTIVES

The aim of this study is to a) investigate the headache features and level of headache severity, chronicity, and disability found within a chiropractic patient population and b) to ascertain if patient satisfaction with headache management by chiropractors is associated with headache group or reason for consulting a chiropractor.

DESIGN AND SETTING

Consecutive adult patients with a chief complaint of headache participated in an online cross-sectional survey (n = 224). Recruitment was via a randomly selected sample of Australian chiropractors (n = 70). Headache features were assessed using International Classification of Headache Disorders criteria and level of headache disability measured using the Headache Impact Test instrument.

RESULTS

One in four participants (n = 57; 25.4%) experienced chronic headaches and 42.0% (n = 88) experienced severe headache pain. In terms of headache features, 20.5% (n = 46) and 16.5% (n = 37) of participants had discrete features of migraine and tension-type headache, respectively, while 33.0% (n = 74) had features of more than one headache type. 'Severe' levels of headache impact were most often reported in those with features of mixed headache (n = 47; 65.3%) and migraine (n = 29; 61.7%). Patients who were satisfied or very satisfied with headache management by a chiropractor were those who were seeking help with headache-related stress or to be more in control of their headaches.

CONCLUSION

Many with headache who consult chiropractors have features of recurrent headaches and experience increased levels of headache disability. These findings may be important to other headache-related healthcare providers and policymakers in their endeavours to provide coordinated, safe and effective care for those with headaches.

Prevalence and factors associated with the use of primary headache diagnostic criteria by chiropractors

Background

The diagnosis of primary headaches assists health care providers in their decision-making regarding patient treatment, co-management and further evaluation. Chiropractors are popular health care providers for those with primary headaches. The aim of this study is to examine the clinical management factors associated with chiropractors who report the use of primary headache diagnostic criteria.

Methods

A cross-sectional survey was distributed between August and November 2016 to a random sample of Australian chiropractors who are members of a practice-based research network (n = 1050) who had reported ‘often’ providing treatment for patients with headache disorders to report on practitioner approaches to headache diagnosis, management, outcome measures and multidisciplinary collaboration. Multiple logistic regression was conducted to assess the factors that are associated with chiropractors who report using International Classification of Headache Disorders (ICHD) primary headache diagnostic criteria.

Results

With a response rate of 36% (n = 381), the majority of chiropractor’s report utilising ICHD primary headache diagnostic criteria (84.6%). The factors associated with chiropractors who use ICHD primary headache diagnostic criteria resulting from the regression analysis include a belief that the use of ICHD primary headache criteria influences the management of patients with primary headaches (OR = 7.86; 95%CI: 3.15, 19.60); the use of soft tissue therapies to the neck/shoulders for tension headache management (OR = 4.33; 95%CI: 1.67, 11.19); a belief that primary headache diagnostic criteria are distinct for the diagnosis of primary headaches (OR = 3.64; 95%CI: 1.58, 8.39); the use of headache diaries (OR = 3.52; 95%CI: 1.41, 8.77); the use of ICHD criteria improves decision-making regarding primary headache patient referral/co-management (OR = 2.35; 95%CI: 1.01, 5.47); referral to investigate a headache red-flag (OR = 2.67; 95%CI: 1.02, 6.96) and not referring headache patients to assist headache prevention (OR = 0.16; 95%CI: 0.03, 0.80).

Conclusion

Four out of five chiropractors managing headache are engaged in the use of primary headache diagnostic criteria. This practice is likely to influence practitioner clinical decision-making around headache patient management including their co-management with other health care providers. These findings call for a closer assessment of headache characteristics of chiropractic patient populations and for further enquiry to explore the role of chiropractors within interdisciplinary primary headache management.

Cervical musculoskeletal impairments in migraine and tension type headache: A systematic review and meta-analysis

AIMS

Neck pain is common in migraine and tension type headache (TTH). This review aimed to examine the evidence for cervical musculoskeletal impairments in these headaches.

METHODS

Databases PubMed (Medline), EMBASE, CINAHL, SCOPUS, and Web of Science were searched from inception to December 2018. Observational studies using a comparator group were included. Risk of bias was assessed using the Appraisal tool for Cross-Sectional Studies. Results were pooled using random effects meta-analysis. Level of evidence for each outcome was assigned based on risk of bias, consistency of results and magnitude of difference between participants with headache and controls. (PROSPERO registration: CRD42018083683).

RESULTS

Of 48 studies included, the majority were rated moderate risk of bias due to possible confounding influences. In total, 17 cervical outcomes were assessed, with confidence in findings ranging from very low to moderate levels. Compared to controls, participants with TTH had greater forward head posture (FHP) (MD = -6.18°, 95% CI [-8.18°, -4.18°]) and less cervical range of motion (ROM) (greatest difference transverse plane MD = -15.0°, 95% CI [-27.7°, -2.3°]. Participants with migraine demonstrated minimally reduced cervical ROM (greatest difference sagittal plane MD = -5.4°, 95% CI [-9.9°, -0.9°]. No differences presented in head posture, strength, craniocervical flexion test performance or joint position error between migraineurs and controls.

CONCLUSIONS

TTH presented with more findings of cervical musculoskeletal impairments than migraine however levels of confidence in findings were low. Future studies should differentiate episodic from chronic headache, identify coexisting musculoskeletal cervical disorders, and describe neck pain behaviour in headache.

A Neuroscience Perspective of Physical Treatment of Headache and Neck Pain

The most prevalent primary headaches tension-type headache and migraine are frequently associated with neck pain. A wide variety of treatment options is available for people with headache and neck pain. Some of these interventions are recommended in guidelines on headache: self-management strategies, pharmacological and non-pharmacological interventions. Physical treatment is a frequently applied treatment for headache. Although this treatment for headache is predominantly targeted on the cervical spine, the neurophysiological background of this intervention remains unclear. Recent knowledge from neuroscience will enhance clinical reasoning in physical treatment of headache. Therefore, we summarize the neuro- anatomical and—physiological findings on headache and neck pain from experimental research in both animals and humans. Several neurophysiological models (referred pain, central sensitization) are proposed to understand the co-occurrence of headache and neck pain. This information can be of added value in understanding the use of physical treatment as a treatment option for patients with headache and neck pain.

The Effectiveness of Acupuncture Combined with Tuina Therapy in Patients with Migraine

BACKGROUND

This study aimed to explore the effectiveness of acupuncture combined with tuina therapy in patients with migraine.

METHODS

A prospective, randomized controlled assessor-blind clinical trial was performed between January 2017 and May 2018, and 135 patients were assigned into acupuncture combined with tuina (A), acupuncture (B), and control (flunarizine hydrochloride) (C) groups, each with 45 patients. Treatments were performed for 12 weeks and a 4-week follow-up. Frequency of attacks, severity of pain, duration of migraine, associated symptoms, patient-reported outcome (PRO) scores, and frequency of analgesic consumption were assessed.

RESULTS

The total effective rate was 95.6, 88.9, and 75.6% for group A, B, and C, respectively, with a significant reduction in attack frequency, severity of pain, duration of migraine, and associated symptoms at post-treatment and follow-up compared to pre-treatment. The PRO scores and frequency of analgesic consumption were significantly improved (group A, p < 0.01; groups B and C, - p < 0.05). The differences in pre-/post-treatment and in pre-treatment/follow-up in groups A and B were significantly improved compared to group C (A vs. C, p < 0.01; B vs. C, A vs. B, p < 0.05). No significant adverse events occurred.

CONCLUSION

Acupuncture combined with tuina could significantly increase the therapeutic effect of acupuncture in migraine treatment.

The Impact of Spinal Manipulation on Migraine Pain and Disability: A Systematic Review and Meta-Analysis

BACKGROUND

Several small studies have suggested that spinal manipulation may be an effective treatment for reducing migraine pain and disability. We performed a systematic review and meta-analysis of published randomized clinical trials (RCTs) to evaluate the evidence regarding spinal manipulation as an alternative or integrative therapy in reducing migraine pain and disability.

METHODS

PubMed and the Cochrane Library databases were searched for clinical trials that evaluated spinal manipulation and migraine-related outcomes through April 2017. Search terms included: migraine, spinal manipulation, manual therapy, chiropractic, and osteopathic. Meta-analytic methods were employed to estimate the effect sizes (Hedges' g) and heterogeneity (I² ) for migraine days, pain, and disability. The methodological quality of retrieved studies was examined following the Cochrane Risk of Bias Tool.

RESULTS

Our search identified 6 RCTs (pooled n = 677; range of n = 42-218) eligible for meta-analysis. Intervention duration ranged from 2 to 6 months; outcomes included measures of migraine days (primary outcome), migraine pain/intensity, and migraine disability. Methodological quality varied across the studies. For example, some studies received high or unclear bias scores for methodological features such as compliance, blinding, and completeness of outcome data. Due to high levels of heterogeneity when all 6 studies were included in the meta-analysis, the 1 RCT performed only among chronic migraineurs was excluded. Heterogeneity across the remaining studies was low. We observed that spinal manipulation reduced migraine days with an overall small effect size (Hedges' g = -0.35, 95% CI: -0.53, -0.16, P < .001) as well as migraine pain/intensity.

CONCLUSIONS

Spinal manipulation may be an effective therapeutic technique to reduce migraine days and pain/intensity. However, given the limitations to studies included in this meta-analysis, we consider these results to be preliminary. Methodologically rigorous, large-scale RCTs are warranted to better inform the evidence base for spinal manipulation as a treatment for migraine.

Is There Support for the Paradigm 'Spinal Posture as a Trigger for Episodic Headache'? A Comprehensive Review

PURPOSE OF REVIEW

The International Classification of Headache Disorders provides an extensive framework to classify headaches. Physiotherapy is indicated if neuromusculoskeletal dysfunctions are involved in the pathophysiology. Maladaptive postures seem a dominant trigger in tension-type and cervicogenic headache. Yet, outcomes following physiotherapy vary. The absence of protocol studies to identify determinants concerning the role of spinal posture in headache might explain such variability. Hence, multi-dimensional profiling of patients with headache based on interactions between spinal posture, psychosocial and lifestyle factors might be essential. Therefore, the aim of this paper was to perform a comprehensive review to find support for the paradigm of spinal posture triggering episodic headache based on a multi-dimensional view on tension-type and cervicogenic headache including modern pain neuroscience.

RECENT FINDINGS

A review was conducted to support spinal posture-induced episodic headache. Pubmed, Web of Science, Pedro and the Cochrane database were explored based on the following 'Mesh' or 'Topics': 'Headache', 'Posture', 'Spine', 'Psychosocial', 'Lifestyle'. The contemporary review of neuroanatomical, biomechanical and non-nociceptive pathways, with integration of modern pain neuroscience in tension-type and cervicogenic headache, supports spinal posture as a trigger for episodic headache. Maladaptive postures can activate C1-C3 nociceptors. Convergence with trigeminal afferents at the trigeminocervical nucleus could explain spinal headache. Interactions with psychosocial and lifestyle factors might contribute to peripheral and central sensitisation. Neuroanatomical, biomechanical and non-nociceptive pathways seem to justify profiling patients based on a postural trigger. Further research is needed to determine the contribution of postural dysfunctions in headache and the effect of specific interventions.

The management of common recurrent headaches by chiropractors: a descriptive analysis of a nationally representative survey

BACKGROUND

Headache management is common within chiropractic clinical settings; however, little is yet known about how this provider group manage headache sufferers. The aim of this study is to report on the prevalence of headache patients found within routine chiropractic practice and to assess how chiropractors approach key aspects of headache management applicable to primary care settings.

METHODS

A 31-item cross-sectional survey was distributed to a national sample of chiropractors (n = 1050) to report on practitioner approach to headache diagnosis, interdisciplinary collaboration, treatment and outcome assessment of headache patients who present with recurrent headache disorders.

RESULTS

The survey attracted a response rate of 36% (n = 381). One in five new patients present to chiropractors with a chief complaint of headache. The majority of chiropractors provide headache diagnosis for common primary (84.6%) and secondary (90.4%) headaches using formal headache classification criteria. Interdisciplinary referral for headache management was most often with CAM providers followed by GPs. Advice on headache triggers, stress management, spinal manipulation, soft tissue therapies and prescriptive neck exercises were the most common therapeutic approaches to headache management.

CONCLUSION

Headache patients make up a substantial proportion of chiropractic caseload. The majority of chiropractors managing headache engage in headache diagnosis and interdisciplinary patient management. More research information is needed to understand the headache types and level of headache chronicity and disability common to chiropractic patient populations to further assess the healthcare needs of this patient population.

The treatment of migraine patients within chiropractic: analysis of a nationally representative survey of 1869 chiropractors

BACKGROUND

While the clinical role of manual therapies in migraine management is unclear, the use of chiropractors for this condition is considerable. The aim of this study is to evaluate the prevalence and characteristics of chiropractors who frequently manage patients with migraine.

METHODS

A national cross-sectional survey of chiropractors collected information on practitioner characteristics, clinical management characteristics and practice settings. A secondary analysis was conducted on 1869 respondents who reported on their migraine caseload to determine the predictors associated with the frequent management of patients with migraine.

RESULTS

A large proportion of chiropractors report having a high migraine caseload (HMC) (n = 990; 53.0%). The strongest factors predicting a chiropractor having a HMC include the frequent treatment of patients with axial neck pain (OR = 2.89; 95%CI: 1.18, 7.07), thoracic pain (referred/radicular) (OR = 2.52; 95%CI: 1.58, 3.21) and non-musculoskeletal disorders (OR = 3.06; 95%CI: 2.13, 4.39).

CONCLUSIONS

Several practice-setting and clinical management characteristics are associated with chiropractors managing a HMC. These findings raise key questions about the therapeutic approach to chiropractic migraine management that deserves further examination. There is a need for more primary research to assess the approach to headache and migraine management provided by chiropractors and to understand the prevalence, burden and comorbidities associated with migraine found within chiropractic patient populations. This information is vital in helping to inform safe, effective and coordinated care for migraine sufferers within the wider health system.