Comparison of acute effects of superficial and deep dry needling into trigger points of suboccipital and upper trapezius muscles in patients with cervicogenic headache

Dry needling techniques as a treatment for improving disability and pain in patients with different types of headache: A systematic review and meta-analysis

BACKGROUND

Headaches, a widespread neuromuscular ailment, pose a significant burden on individuals and society, necessitating both pharmacological and non-pharmacological interventions. Dry needling (DN) has surfaced as a notable non-pharmacological alternative for addressing headaches. We aim to compare DN intervention with the control group in the management of different types of headaches.

METHODS

A comprehensive meta-analysis was conducted, encompassing a systematic exploration of five electronic databases up to May 2023, with studies assessed for validity using the Cochrane risk of bias tool. Eligible studies included those with a control group, which could consist of sham interventions, physiotherapy, or pharmacological treatments. Outcomes related to disability, headache intensity, and frequency were extracted and analyzed.

RESULTS

Out of 4304 studies screened, 13 randomized controlled trials (RCTs) were included in this systematic review, of them 10 RCTs were included in the meta-analysis. A significant decline in the disability score and headache intensity was evident in the DN group compared to the control group, one and three-month follow-ups. Specifically, substantial reductions in headache frequency were prominent after one and three months post-intervention.

CONCLUSION

Dry needling manifests as a potent intervention, diminishing headache intensity and frequency, albeit with lower impact on disability scores. The observed benefits were especially pronounced after one and three months, though the heterogeneous nature of some data analyses mandates further detailed studies to gain a clearer understanding of DN's efficacy on the assessed outcomes.

Effect of Extracorporeal Shock Wave on Upper Trapezius Trigger Points in Patients With Cervicogenic Headache: A Randomized Clinical Trial

OBJECTIVE

A recent study was designed to ascertain the impact of extracorporeal shock wave therapy on upper trapezius trigger points in cervicogenic headaches patients.

DESIGN

A double-blinded randomized controlled trial study, in which 50 participants (11 male and 39 female) aged between 20-40 with cervicogenic headache were subdivided with randomization to group (A), which received traditional physical therapy and sham shock wave therapy, and group (B), which received traditional physical therapy and actual shock wave therapy. All assessments were performed by a therapist before and after the treatment program (4 wks).

RESULTS

There was a significant difference of headache disability index, visual analog scale scores, and upper trapezius electromyographic characteristics with P value <0.05 in both groups, in favor of the shock wave group.

CONCLUSIONS

Extracorporeal shock wave therapy could be used for clinical and research concerns because its positive effects on pain suppression, reduction of headache intensity, and restoration of muscle regular activity in cervicogenic headache patients.

Effectiveness and Safety of Pharmacopuncture on Inpatients with Tension Headache Caused by Traffic Accidents: A Pragmatic Randomized Controlled Trial

Background: This study investigated the effectiveness and safety of pharmacopuncture for pain relief and functional improvement in patients with traffic accident (TA)-induced acute tension headaches. Methods: The study employed a parallel, single-centered, pragmatic, randomized controlled trial design. Eighty patients complaining of acute tension headaches were randomized into the integrative Korean medicine treatment (IKM treatment) group and the pharmacopuncture group on suboccipital muscles (suboccipital muscles pharmacopuncture + IKM treatment), with 40 participants assigned to each group. The patients in the pharmacopuncture group underwent pharmacopuncture as an add-on therapy, consisting of three sessions. Both groups were reassessed 2 months post-intervention. To assess the outcomes, the Numeric Rating Scale (NRS) for Headache, NRS for Neck Pain, Headache Disability Index, Headache Impact Test-6, EuroQol 5-Dimension, and Patient Global Impression of Change were used. Results: The improvement in the outcomes of the pharmacopuncture group was significantly greater than that of the comparison group on day 4 of hospitalization in terms of pain (difference in NRS of headache -2.59, 95% CI -3.06 to -2.12; NRS of Neck pain -1.05, 95% CI -1.50 to -0.59) and function (difference in HDI -24.78, 95% CI, -31.79 to -17.76; HIT-6 -6.13, 95% CI, -9.47 to -2.78). Additionally, in 2 months of follow-up, the recovery rate of headache was significantly higher in the pharmacopuncture group than in the comparison group. Conclusions: The pharmacopuncture group demonstrated superior outcomes in symptom improvement than the comparison group did, providing insights into novel and useful applications of pharmacopuncture in the clinical practice of Korean medicine.

The utilization of dry needling and an upper extremity exercise program for individuals with cervicogenic headaches: A pilot study

OBJECTIVE

To investigate whether a combination of dry-needling treatments and upper extremity neuromuscular reeducation exercises can significantly improve neck pain and/or headache-related disability, joint position error, cervical range of motion, and pain pressure threshold in individuals suffering from cervicogenic headache (CGH).

METHODS

This study is a quasi-experimental design. Seven participants met the inclusion criteria and received dry needling to three muscles that reproduced the participant's headache symptoms and completed the Neck Disability Index (NDI), Headache Disability Inventory (HDI), Visual Analog Scale (VAS), and Numeric Pain Rating Scale (NPRS). Participants performed an exercise regimen designed to address strength and mobility of cervical and scapulothoracic musculature.

RESULTS

There were significant improvements seen in cervical range of motion and neck pain-related disability (NDI) during the 4-week treatment period.

CONCLUSION

Dry needling and neuromuscular re-education (NMR) exercises could be effective components of treatment for individuals suffering from CGH to reduce disability and pain.

Immediate effects of superficial dry needling of the trigeminal nerve innervation field for participants with cervicogenic headache. A randomized controlled trial

BACKGROUND

Cervicogenic headache (CGH) is a common condition with a neuroanatomical basis involving the trigeminal nerve. Dry needling (DN) is a safe and effective treatment for CGH but most studies involve deep DN to cervical musculature.

OBJECTIVE

The aim of this study was to investigate immediate effects of superficial DN of the trigeminal nerve innervation field on numeric pain rating scale (NPRS), flexion-rotation test (FRT), cervical range of motion (AROM), and pain-pressure threshold (PPT) of right (R) and left (L) supraorbital (SO), and right (R) and left (L) greater occipital (GO) nerves in participants with CGH.

METHODS

A parallel controlled randomized design involving 30 participants with CGH received either superficial DN (N = 17) or sham DN (N = 13). Participants and outcome assessors were blind to group assignment. Wilcoxon signed rank analyzed within-group effects and Mann-Whitney U analyzed between-group.

RESULTS

Statistically significant between-group differences were observed for NPRS (P < .001) and AROM (P < .006) favoring DN and were clinically meaningful. Right and left Flexion rotation tests (FRT) outcomes were non-significant (P = .137) but clinically meaningful. No differences were observed for PPT over: R SO (P = .187); L SO (P = .052); R GO (P = .187); or L GO (P = .052). Between-group effect sizes across variables were moderate to large (0.53-1.4) but confidence intervals were wide.

CONCLUSION

Superficial DN targeting the innervation field of the trigeminal nerve improves clinical outcomes in patients with CGH. Only the immediate effects were analyzed and the sample size was small. Larger, longer-term assessments are needed comparing superficial DN of the trigeminal innervation field and other conservative interventions for CGH.

Differences in musculoskeletal dysfunctions and in postural alterations between chronic migraine and chronic tension type headache: A cross-sectional study

OBJECTIVE

The aim of present study is to assess postural alterations and musculoskeletal dysfunctions over all spine in patients with chronic migraine and chronic tension type headache, moreover to highlight the differences between these two forms of primary headache.

METHODS

A Cross sectional study was adopted to evaluate the musculoskeletal profile in patients with chronic migraine and with chronic tension type headache. The Bio photogrammetric evaluation was performed using the postural assessment software PAS/SAPO, while unilateral passive accessory intervertebral motion (PAIMs) were applied for manual examinations of spine segments from C0 to L5 vertebra. The One-way Analysis of Variance (ANOVA) test was used to compare the three groups with the software GraphPad InStat 3.06.

RESULTS

A total of 60 patients were recruited, 20 for chronic tension type group, 20 for chronic migraine group and 20 healthy controls. The most interesting findings was that patients with chronic primary headaches presented postural alterations in all parameters (cranio-vertebral angle and lumbar-pelvic angle) and musculoskeletal dysfunctions in all spine with respect to healthy controls. Finally, the most clinically relevant finding was that no differences were found between chronic migraine and chronic tension type headache concerning the postural alterations nor the musculoskeletal dysfunctions.

CONCLUSION

The sensitization acts as a substrate or consequence of these musculoskeletal dysfunctions in chronic primary headache. Therefore, non-pharmacological treatments targeted in the musculoskeletal system may be a good option in the management of chronic primary headache, especially when these therapies integrate various techniques that involve all spine.

Clinical efficacy of the mulligan maneuver for cervicogenic headache: a randomized controlled trial

Cervicogenic headache is an often observed secondary headache in clinical settings, with patients who endure prolonged and persistent pain being particularly susceptible to mood changes. Currently, the Mulligan is one of the effective methods for CEH. However, there is a lack of evaluation about the strength and frequency of headaches, as well as the assessment of pain-induced emotions, in individuals with CEH using this particular procedure. Herein, we aimed to evaluate the effectiveness of the Mulligan maneuver from a multidimensional perspective of pain intensity and mood. A total of forty patients diagnosed with CEH who satisfied the specified inclusion criteria were recruited and allocated randomly into two groups: the control group and the treatment group, with each group consisting of twenty cases. The control group received health education, while the treatment group received the Mulligan maneuver once daily over a course of 10 treatment sessions.The clinical outcome of patients with CEH in two groups was assessed using the Visual Analog Scale (VAS), Hamilton Anxiety Scale (HAMA), and Hamilton Depression Scale (HAMD). Resting-state functional magnetic resonance imaging was employed to examine variations in brain function activities between the two CEH groups. Brain regions showing differences were identified as regions of interest and subsequently correlated with clinical behavioral measures using Pearson's correlation analysis. The differences in VAS, HAMA and HAMD between the two groups of CEH patients were also statistically significant. The brain regions that showed differences in the ReHo scores between the two groups of CEH patients included the left cerebellum, the frontal gyrus, and the middle temporal gyrus. There was a positive correlation between the left frontal gyrus and VAS, HAMA and HAMD. The left middle temporal gyrus had a negative correlation with VAS, HAMA, and HAMD and the left cerebellum had a positive correlation with VAS correlation. The Mulligan maneuver may improve pain levels and have a moderating effect on pain-related negative emotions by regulating the function of relevant brain regions in CEH patients.

The Role of Manual Therapies in the Treatment of Headache Disorders

PURPOSE OF REVIEW

A comprehensive headache treatment plan typically requires both medication and non-medication treatment strategies. Manual therapies offer another therapeutic approach to headache treatment. This article reviews the evidence for manual therapies in the treatment of headache disorders.

RECENT FINDINGS

Current evidence shows potential benefit from myofascial trigger point injections, myofascial release, and massage for the treatment of various headache types. There is also evidence for strain counterstrain technique, ischemic compression, and spinal manipulative therapies for cervicogenic headache. Although larger randomized clinical trials are necessary for many of these modalities, recent findings show that manual therapies could be an important tool for the treatment of some headache disorders.

Comparison of immediate and delayed effects of superficial and deep dry needling in patients with upper trapezius myofascial trigger points

BACKGROUND

Dry needling is one of the most common treatments for this condition. In this study the immediate and delayed effects of superficial dry needling (SDN) and deep dry needling (DDN) on upper trapezius muscle function and patients' pain and disability was evaluated.

METHODS

In this quasi-experimental study, 47 women with active MTrPs were randomly divided into SDN and DDN groups and received one session treatment. Pain and disability were assessed before and one week after intervention with visual analogue scale (VAS) and neck disability index (NDI) questionnaire. Muscle activity was assessed by surface electromyography (sEMG) before, immediately and one week after intervention.

RESULTS

Both groups showed significant decrease in VAS (p < 0.001) and NDI (p < 0.001) after one week, however no significant difference were found between the groups (p > 0.05). A significant increase in sEMG activity was observed only in DDN group after one week (p < 0.007), but there were no significant differences in sEMG activity in SDN group after intervention and between the two groups (p > 0.05).

CONCLUSION

Both SDN and DDN could be effective in reducing pain and disability in patients with active MTrPs of upper trapezius muscle. Regarding muscle function DDN seems to be more effective. So that based on evaluation of the therapist in some cases with not significant muscle dysfunction SDN as a gentle and less invasive method could be used but for long term effectiveness and in those with significant muscle dysfunction DDN could be used.

Correlation between thoracic kyphosis and dry needle length required to reach the pleural space needling the upper trapezius: A cadaveric fluoroscopic assessment

BACKGROUND

It is unknown whether greater prone thoracic kyphosis increases pneumothorax risk during upper trapezius dry needling.

OBJECTIVES

To fluoroscopically assess for a correlation between prone thoracic kyphosis and needle length required to reach the pleural space dry needling the upper trapezius in prone.

DESIGN

Cadaveric study.

METHODS

Prone thoracic kyphosis was assessed using dual bubble inclinometers. A 30 mm dry needle was inserted into the midsubstance of the upper trapezius perpendicular to the thoracic kyphosis. A single C-arm fluoroscopic image was obtained. This procedure was repeated with 40, 50, and 60 mm needles. Images were independently viewed by a radiologist to make a binary decision (yes vs. no) whether the needle had potentially broached the pleural space.

RESULTS

Fifteen cadaveric specimens with a mean age of 74.9 ± 9.7 and mean kyphosis of 21.5° ±7.7 were used. A 30 mm needle never reached the pleural space. The pleural space was potentially broached on one, four and six occasions by the 40, 50, and 60 mm needle respectively. The correlation between needle depth penetration and kyphosis was not significant (r = 0.03, p = 0.93). Longer needles (50 and 60 mm) were significantly (p = 0.0049) more likely to reach the pleural space than shorter needles (30 and 40 mm).

CONCLUSION

Thoracic kyphosis was not correlated with needle length required to reach the pleural space. Clinicians may consider selecting shorter needles (<40 mm) to mitigate potential risk while dry needling the upper trapezius in prone.

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.

Short-Term Effects of Dry Needling with a Standard Exercise Program on Pain and Quality of Life in Patients with Chronic Mechanical Neck Pain

BACKGROUND

This study aimed to determine the short-term effects of dry needling (DN) combined with a standard exercise program on pain and quality of life in patients with chronic mechanical neck pain (CMNP).

METHODS

Thirty-one patients with CMNP were randomly allocated to the experimental and control groups. The experimental group received DN and underwent a standard exercise program (one DN session and six exercise sessions) for two weeks, whereas the control group underwent the same exercise program alone for two weeks. The participants' scores in the Numeric Pain Rating Scale (NPRS), Neck Disability Index (NDI), Short Form-36 Quality of Life Scale (SF-36 QOLS), and Beck Depression Inventory (BDI) before and after the intervention were assessed.

RESULTS

The control and experimental groups' post-test NDI, NPRS, SF-36 QOLS, and BDI scores significantly differed from their baseline scores (p ≤ 0.05). The between-group comparison of the post-test scores using Wilcoxon rank-sum test revealed no significant differences between the NDI, NPRS, BDI, and SF-36 QOLS scores of both groups (p ≥ 0.05).

CONCLUSIONS

One session of trigger point DN (TrP-DN) with exercise and exercise alone showed the same pain and quality-of-life outcomes after a two-week intervention. We did not recognise TrP-DN as an efficient intervention, not because we obtained evidence that it is ineffective, but because there were inadequate high-quality studies on the subject and unavailable data on the minimum quantity of injections required for better DN outcomes in CMNP patients.

Effectiveness of dry needling for headache: A systematic review

INTRODUCTION

Non-pharmacological treatment of patients with headache, such as dry needling (DN), is associated with less morbidity and mortality and lower costs than pharmacological treatment. Some of these techniques are useful in clinical practice. The aim of this study was to review the level of evidence for DN in patients with headache.

METHODS

We performed a systematic review of randomised clinical trials on headache and DN on the PubMed, Web of Science, Scopus, and PEDro databases. Methodological quality was evaluated with the Spanish version of the PEDro scale by 2 independent reviewers.

RESULTS

Of a total of 136 studies, we selected 8 randomised clinical trials published between 1994 and 2019, including a total of 577 patients. Two studies evaluated patients with cervicogenic headache, 2 evaluated patients with tension-type headache, one study assessed patients with migraine, and the remaining 3 evaluated patients with mixed-type headache (tension-type headache/migraine). Quality ratings ranged from low (3/10) to high (7/10). The effectiveness of DN was similar to that of the other interventions. DN was associated with significant improvements in functional and sensory outcomes.

CONCLUSIONS

Dry needling should be considered for the treatment of headache, and may be applied either alone or in combination with pharmacological treatments.

Selected needling techniques in pain associated with musculoskeletal disorders: a narrative review

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Effectiveness of manual therapy in the treatment of cervicogenic headache: A systematic review

OBJECTIVE

The aim of this study was to identify the manual therapy (MT) methods and techniques that have been evaluated for the treatment of cervicogenic headache (CH) and their effectiveness.

BACKGROUND

MT seems to be one of the options with the greatest potential for the treatment of CH, but the techniques to be applied are varied and there is no consensus on which are the most indicated.

METHODS

A systematic search in Scopus, Medline, PubMed, Cinahl, PEDro, and Web of Science with the terms: secondary headache disorders, physical therapy modalities, musculoskeletal manipulations, cervicogenic headache, manual therapy, and physical therapy. We included articles published from 2015 to the present that studied interventions with MT techniques in patients with CH. Two reviewers independently screened 365 articles for demographic information, characteristics of study design, study-specific intervention, and results. The Oxford 2011 Levels of Evidence and the Jadad scale were used.

RESULTS

Of a total of 14 articles selected, 11 were randomized control trials and three were quasi-experimental studies. The techniques studied were: spinal manipulative therapy, Mulligan's Sustained Natural Apophyseal Glides, muscle techniques, and translatory vertebral mobilization. In the short-term, the Jones technique on the trapezius and ischemic compression on the sternocleidomastoid achieved immediate improvements, whereas adding spinal manipulative therapy to the treatment can maintain long-term results.

CONCLUSIONS

The manual therapy techniques could be effective in the treatment of patients with CH. The combined use of MT techniques improved the results compared with using them separately. This review has methodological limitations, such as the inclusion of quasi-experimental studies and studies with small sample sizes that reduced the generalizability of the results obtained.

Acupuncture plus massage for cervicogenic headache: A protocol for systematic review and meta-analysis

BACKGROUND

Cervicogenic headache (CGH), one of the most common headaches. It is characterized by pain starting from the neck and gradually involving the eyes, frontal and temporal regions. Acupuncture and massage therapy has been widely used in the treatment of CGH, the purpose of this study was to evaluate the effectiveness and safety of acupuncture combined with massage in the treatment of CGH.

METHODS

The databases of PubMed, Embase, Cochrane library, Medicine, Web of Science, China National Knowledge Infrastructure, Wan-Fang Database, China Biomedical Literature Service System, and Chongqing VIP Chinese Science will be searched. This study will include randomized controlled trials of acupuncture combined with massage in the treatment of CGH published before November 2021. The primary outcomes included the overall efficiency, visual simulation score, neck activity score, quality of life score, and adverse reactions as secondary outcomes were assessed. Cochrane bias risk assessment tool will be used for literature data screening and quality evaluation, and using RevMan5.4 to collect data for statistical analysis. We then will use the Grading of Recommendations Assessment, Development, and Evaluation approach to assess the overall quality of evidence supporting the primary outcomes.

RESULTS

This systematic review will provide a high-quality synthesis to evaluate the efficacy and safety of acupuncture combined with massage therapy in the treatment of CGH, providing a reference for the safe and effective treatment plan.

CONCLUSION

This study provides evidence that acupuncture combined with massage is effective and safe for patients with CGH.

SYSTEMATIC REVIEW REGISTRATION

INPLASY2021120049U1.

The Effect of Adding Dry Needling to Physical Therapy in the Treatment of Cervicogenic Headache: A Randomized Controlled Trial

OBJECTIVE

To compare the long-term effect of adding real or sham dry needling with conventional physiotherapy in cervicogenic headache.

DESIGN

A randomized controlled trial.

SETTING

Physiotherapy Clinic, Rouhani Hospital of Babol University of Medical Sciences, Iran.

SUBJECTS

Sixty-nine patients with cervicogenic headache.

METHODS

Patients were randomly assigned into a control group (n = 23) receiving conventional physical therapy; a dry needling group (n = 23) receiving conventional physical therapy and dry needling on the cervical muscles; placebo needling group (n = 23) receiving conventional physical therapy and superficial dry needling at a point away from the trigger point. The primary outcome was the headache intensity and frequency. Neck disability, deep cervical flexor performance and range of motion were secondary outcomes. Outcomes were assessed immediately after treatment and one, three and six months later.

RESULTS

Sixty-five patients were finally included in the analysis. Headache intensity and neck disability decreased significantly more in the dry needling compared to sham and control groups after treatment and during all follow-ups. The frequency of headaches also reduced more in the dry needling than in control and sham groups, but it did not reach statistical significance. Higher cervical range of motion and enhancement of deep cervical flexors performance was also observed in the dry needling compared to sham and control groups.

CONCLUSION

Dry needling has a positive effect on pain and disability reduction, cervical range of motion and deep cervical flexor muscles performance in patients with cervicogenic headache and active trigger points, although the clinical relevance of the results was small.

Current advances and novel research on minimal invasive techniques for musculoskeletal disorders

The present review summarized the current advances and novel research on minimal invasive techniques for musculoskeletal disorders. Different invasive approaches were proposed in the physical therapy field for the management of musculoskeletal disorders, such as ultrasound-guided percutaneous needle electrolysis, dry needling, acupuncture and other invasive therapy techniques, discussing about their worldwide status, safety and interventional ultrasound imaging. Indeed, dry needling may be one of the most useful and studies invasive physical therapy applications in musculoskeletal disorders of different body regions, such as back, upper limb, shoulder, arm, hand, pelvis, lower limb, neck, head, or temporomandibular joint, and multiple soreness location disorders, such as fibromyalgia. In addition, the assessment and treatment by acupuncture or electro-acupuncture was considered and detailed for different conditions such as plantar fasciitis, osteoarthritis, spasticity, myofascial pain syndrome, osteoporosis and rheumatoid arthritis. As an increasing technique in physical therapy, the use of ultrasound-guided percutaneous needle electrolysis was discussed in injuries of the musculoskeletal system and entrapment neuropathies. Also, ultrasound-guided percutaneous neuromodulation was established as a rising technique combined with ultrasound evaluation of the peripheral nerve system with different clinical applications which need further studies to detail their effectiveness in different musculoskeletal conditions. Thus, invasive physical therapy may be considered as a promising approach with different novel applications in several musculoskeletal disorders and a rising use in the physiotherapy field.

Dry Needling for the Treatment of Tension-Type, Cervicogenic, or Migraine Headaches: A Systematic Review and Meta-Analysis

OBJECTIVE

Dry needling is a treatment technique used by clinicians to relieve symptoms in patients with tension-type headache (TTH), cervicogenic headache (CGH), or migraine. This systematic review's main objective was to assess the effectiveness of dry needling on headache pain intensity and related disability in patients with TTH, CGH, or migraine.

METHODS

Medline/PubMed, Scopus, Embase, PEDro, Web of Science, Ovid, Allied and Complementary Medicine Database/EBSCO, Cochrane Central Register of Controlled Clinical Trials, Google Scholar, and trial registries were searched until April 1, 2020, along with reference lists of eligible studies and related reviews. Randomized clinical trials or observational studies that compared the effectiveness of dry needling with any other interventions were eligible for inclusion. Three reviewers independently selected studies, extracted data, and assessed risk of bias. Random-effects meta-analyses were performed to produce pooled-effect estimates (Morris dppc2) and their respective CIs.

RESULTS

Of 2715 identified studies, 11 randomized clinical trials were eligible for qualitative synthesis and 9 for meta-analysis. Only 4 trials were of high quality. Very low-quality evidence suggested that dry needling is not statistically better than other interventions for improving headache pain intensity in the short term in patients with TTH (SMD -1.27, 95% CI = -3.56 to 1.03, n = 230), CGH (SMD -0.41, 95% CI = -4.69 to 3.87, n = 104), or mixed headache (TTH and migraine; SMD 0.03; 95% CI = -0.42 to 0.48, n = 90). Dry needling provided significantly greater improvement in related disability in the short term in patients with TTH (SMD -2.28, 95% CI = -2.66 to -1.91, n = 160) and CGH (SMD -0.72, 95% CI = -1.09 to -0.34, n = 144). The synthesis of results showed that dry needling could significantly improve headache frequency, health-related quality of life, trigger point tenderness, and cervical range of motion in TTH and CGH.

CONCLUSIONS

Dry needling produces similar effects to other interventions for short-term headache pain relief, whereas dry needling seems to be better than other therapies for improvement in related disability in the short term.

IMPACT

Although further high-methodological quality studies are warranted to provide a more robust conclusion, our systematic review suggested that for every 1 or 2 patients with TTH treated by dry needling, 1 patient will likely show decreased headache intensity (number needed to treat [NNT] = 2; large effect) and improved related disability (NNT = 1; very large effect). In CGH, for every 3 or 4 patients treated by dry needling, 1 patient will likely exhibit decreased headache intensity (NNT = 4; small effect) and improved related disability (NNT = 3; medium effect).

Influence of clinical experience on accuracy and safety of obliquus capitus inferior dry needling in unembalmed cadavers

Background: Suboccipital myofascial trigger points are common in tension-type headaches.Objectives: Compare the influence of clinical experience on the accuracy and safety of dry needle placement on the C2 laminar arch using a cranial-medial and caudal-medial technique to target obliquus capitus inferior in unembalmed cadavers.Methods: Three physical therapists inserted three 50 mm dry needles, per technique, individually toward the C2 laminar arch targeting the obliquus capitus inferior. Ultrasound video of each trial was recorded, and an investigator trained in ultrasound interpretation and blinded to experience level recorded needling accuracy.Results: The novice, experienced and expert clinicians were accurate on 73.8%, 59.5% and 71.4% of caudal-medial trials, and 14.3%, 16.7% and 66.7% of cranial-medial trials, respectively, with each clinician striking the spinal cord at least once. The expert clinician was 10 times more likely to accurately reach the C2 laminar arch using the cranial-medial direction than the experienced and novice clinicians.Conclusion: Increased clinical experience improved accuracy reaching the C2 laminar arch, with all investigators being more accurate with the caudal-medial technique. Greater experience did not eliminate risk as all investigators recorded at least one incident of striking the spinal cord. Fewer spinal cord strikes occurred with the cranial-medial than the caudal-medial technique.

The Effectiveness of Sternocleidomastoid Muscle Dry Needling in Patients with Cervicogenic Headache

BACKGROUND

Cervicogenic headache (CGH) is a secondary headache with a cervical source that radiates pain to the head or face. Accordingly, one reason of CGH is myofascial trigger points. The purpose of this study was to investigate the effect of one session dry needling (DN) of myofascial trigger points of the sternocleidomastoid (SCM) muscle in patients with CGH.

MATERIALS AND METHODS

In this before-and-after clinical trial, 16 females aged 18-60 years with a clinical diagnosis of CGH were enrolled. All of the patients received one session DN into the myofascial trigger points of the SCM muscle. Headache index (HI), headache duration, headache frequency, and headache disability index (HDI) were assessed at 2 weeks before and 2 weeks after the intervention. This study was registered in Clinical Trials as IRCT20181109041599N1.

RESULTS

One session DN into myofascial trigger points of the SCM muscle showed a significant improvement in HI (P < 0.001). Duration and frequency of headache as well as HDI significantly reduced after intervention (P < 0.001).

CONCLUSION

One session DN into myofascial trigger points of the SCM muscle was effective on improvement of HI, headache duration, headache frequency, and HDI in patients with CGH.

A sonographic comparison of the effect of dry needling and ischemic compression on the active trigger point of the sternocleidomastoid muscle associated with cervicogenic headache: A randomized trial

BACKGROUND

Cervicogenic headache (CeH) is among the common types of headache which has an undesirable influence on the quality of life. The myofascial trigger point (MTrP) within the sternocleidomastoid (SCM) muscle is one of the most important causes of CeH.

OBJECTIVE

The purpose of this study was to compare the effect of dry needling (DN) and ischemic compression (IC) on the headache symptoms as well as MTrP-related features in subjects with CeH originating from MTrPs of the SCM muscle using a sonographic method.

METHODS

A total of 29 female subjects aged 35.34 ± 12.19 on average with a clinical diagnosis of CeH originating from MTrP in the SCM muscle were randomly divided into the DN, IC, and control groups. Both DN and IC groups received 4 treatment sessions. Headache intensity, duration, frequency, MTrP elastic modulus, MTrP area, and pressure pain threshold (PPT) were assessed 2 weeks before and after treatments.

RESULTS

In both DN and IC groups, a significant improvement was found in the headache intensity, duration, frequency, PPT, and MTrP area (P< 0.05). No significant differences were observed between DN and IC (P> 0.05). Pearson correlation revealed a significant correlation between headache intensity and the MTrP elastic modulus (P< 0.05).

CONCLUSIONS

Both interventions could reduce headache symptoms, PPT, and MTrP area. Neither intervention was found to be superior to the other in short-term follow-up. IC may be preferred since it has fewer unwanted side effects compared to DN. Based on the data, it may be concluded that some MTrP biomechanical features such as stiffness may influence the produced headache symptoms.

Dry needling strategies for musculoskeletal conditions: Do the number of needles and needle retention time matter? A narrative literature review

Acupuncture and dry needling are both minimally invasive procedures that use thin, filiform needles without injectate for the management of a variety of neuromusculoskeletal pain conditions. While the theoretical constructs underlying the use of acupuncture and dry needling are unique, both appear to have the ability to elicit biochemical, biomechanical, endocrinological and neurovascular changes associated with reductions in pain and disability. However, optimal treatment dosage has yet to be determined, and there is a lack of consistency in the literature on the number of needles that should be inserted and the needle retention time. Therefore, the purpose of this narrative review is to further explore the importance of these two variables. While trigger point dry needling advocates single needle insertions via repetitive, quick in-and-out pistoning, most acupuncture and dry needling clinical trials have incorporated multiple needles for five to 40 min. Notably and to date, using a single needle to repeatedly prick trigger points one at a time with fast-in and fast-out pistoning maneuvers has not yet been shown to produce significant and clinically meaningful long term improvements in pain and disability in a wide array of musculoskeletal conditions. Insertion of multiple needles for typically 20-30 min durations has been shown to produce larger treatment effect sizes and longer-lasting outcomes than brief, single-needle strategies. Moreover, the number of needles and needle retention time are two variables associated with treatment dosage and must be carefully matched with specific musculoskeletal conditions and the patient's goals.

Criteria Used for the Diagnosis of Myofascial Trigger Points in Clinical Trials on Physical Therapy: Updated Systematic Review

OBJECTIVE

The objective of this study was to conduct an updated systematic review of diagnostic criteria for myofascial trigger points (MTrPs) used in clinical trials of physical therapy interventions from 2007 to 2019.

METHODS

MEDLINE and Physiotherapy Evidence Database (PEDro) were searched using the following MeSH keywords: "trigger points," "trigger point," "myofascial trigger point," "myofascial trigger points," "myofascial pain," and "myofascial pain syndrome." The MeSH keywords were combined by using Boolean operators "OR"/"AND." All physiotherapy clinical trials including patients with musculoskeletal conditions characterized by at least 1 active MTrP or latent MTrP in any body area were selected. We pooled data from an individual criterion and criteria combinations used to diagnose MTrPs. The protocol was developed in accordance with the PRISMA-P guidelines.

RESULTS

Of 478 possibly relevant publications, 198 met the inclusion criteria. Of these 198 studies, 129 studies (65.1%) stated specifically the diagnostic criteria used for MTrPs in the main text, 56 studies (28.3%) failed to report any method whereby MTrP was diagnosed, and 13 studies (6.6%) adopted expert-based definitions for MTrPs without specification. Of 129 studies, the 6 criteria applied most commonly were: "spot tenderness" (n=125, 96.9%), "referred pain" (95, 73.6%), "local twitch response" (63, 48.8%), pain recognition (59, 45.7%), limited range of motion" (29, 22.5%), and "jump sign" (10, 7.8%). Twenty-three combinations of diagnostic criteria were identified. The most frequently used combination was "spot tenderness," "referred pain," and "local twitch response" (n=28 studies, 22%).

CONCLUSIONS

A number of the included studies failed in properly reporting the MTrP diagnostic criteria. Moreover, high variability in the use of MTrP diagnostic was also observed. Spot tenderness, referred pain, and local twitch response were the 3 most popular criteria (and the most frequently used combination). A lack of transparency in the reporting of MTrP diagnostic criteria is present in the literature.

REGISTRY

This systematic review was registered under the Centre for Reviews and Dissemination, PROSPERO number: CRD42018087420.

Comparison of the effect of two different types of dry-needling techniques on subacromial impingement syndrome

INTRODUCTION

Infraspinatus is one of the main muscles that is involved in the subacromial impingement syndrome. Dry needling and routine physical therapy can improve this syndrome. However, the dry needling technique is not well defined.

DESIGN

randomized controlled clinical trial, single-blind study.

METHOD

Sixty-six patients diagnosed with shoulder impingement syndrome were recruited and randomly divided into three groups.

INTERVENTIONS

In 1st group; patients received deep dry needling technique in addition to routine physical therapy, in Hong's group; patients received Hong's dry needling technique in addition to routine physiotherapy and in third group; patient just received routine physical therapy.

MAIN OUTCOME MEASURE(S)

Before, immediately after and 4 weeks after the intervention, pain, disability and the pressure pain threshold were measured.

RESULTS

The findings of this study indicated that in DDN group, pain and disability reduction was significantly more than two other groups. Although, the pressure pain tolerance increased in all three groups after treatment, but the increase between groups was not significantly different. All study groups showed reduction in pain, while there was no significant difference between the three groups.

CONCLUSION

Pain and disability reduction in the DDN group compared to the other two groups may reveal the treatment with deep dry needling technique along with routine physiotherapy is more effective than receiving dry needling with Hong's technique or routine physiotherapy alone. However, there was no significant difference between the three groups in pressure pain tolerance threshold and pain reduction.

Post-traumatic cephalalgia

After traumatic brain injury (TBI), a host of symptoms of varying severity and associated functional impairment may occur. One of the most commonly encountered and challenging to treat are the post-traumatic cephalalgias. Post-traumatic cephalalgia (PTC) or headache is often conceptualized as a single entity as currently classified using the ICHD-3. Yet, the terminology applicable to the major primary, non-traumatic, headache disorders such as migraine, tension headache, and cervicogenic headache are often used to specify the specific type of headache the patients experiences seemingly disparate from the unitary definition of post-traumatic headache adopted by ICHD-3. More complex post-traumatic presentations attributable to brain injury as well as other headache conditions are important to consider as well as other causes such as medication overuse headache and medication induced headache. Treatment of any post-traumatic cephalalgia must be optimized by understanding that there may be more than one headache pain generator, that comorbid traumatic problems may contribute to the pain presentation and that pre-existing conditions could impact both symptom complaint, clinical presentation and recovery. Any treatment for PTC must harmonize with ongoing medical and psychosocial aspects of recovery.

Effects of Dry Needling Technique Into Trigger Points of the Sternocleidomastoid Muscle in Migraine Headache: A Randomized Controlled Trial

OBJECTIVE

The study aimed to investigate the effect of dry needling into trigger points of the sternocleidomastoid muscle in migraine headache patients.

DESIGN

Forty subjects with a migraine headache, originating from myofacial trigger points into the sternocleidomastoid muscle (20 subjects in dry needling group and 20 subjects in control group) volunteered to participate in this study. The subjects in the treatment group received three sessions of dry needling in the myofascial trigger point region. Headache frequency, headache intensity, headache duration, drug consumption, muscle thickness, pressure pain threshold, and cervical range of motion were assessed before, immediately after intervention, and at 1-mo follow-up period. In addition, this article was extracted from Iranian Register of Clinical Trials Number IRCT20171219037956N1.

RESULTS

The experimental group showed significant reduction in the headache parameters immediately after the intervention and at 1-mo follow-up, as compared with the control group. The pressure pain threshold of sternocleidomastoid muscle, cervical range of motion, and muscle thickness significantly increased in the dry needling group in comparison with the control group (P < 0.001).

CONCLUSIONS

The application of dry needling technique caused an improvement in symptoms of migraine patients. Therefore, this technique may be prescribed for treating migraine patients with myofacial trigger points in the sternocleidomastoid muscle.

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.

Dry needling for spine related disorders: a scoping review

Introduction/Background

The depth and breadth of research on dry needling (DN) has not been evaluated specifically for symptomatic spine related disorders (SRD) from myofascial trigger points (TrP), disc, nerve and articular structures not due to serious pathologies. Current literature appears to support DN for treatment of TrP. Goals of this review include identifying research published on DN treatment for SRD, sites of treatment and outcomes studied.

Methods

A scoping review was conducted following Levac et al.’s five part methodological framework to determine the current state of the literature regarding DN for patients with SRD.

Results

Initial and secondary search strategies yielded 55 studies in the cervical (C) region (71.43%) and 22 in the thoracolumbar-pelvic (TLP) region (28.57%). Most were randomized controlled trials (60% in C, 45.45% in TLP) and clinical trials (18.18% in C, 22.78% in TLP). The most commonly treated condition was TrP for both the C and TLP regions. In the C region, DN was provided to 23 different muscles, with the trapezius as treatment site in 41.88% of studies. DN was applied to 31 different structures in the TLP region. In the C region, there was one treatment session in 23 studies (41.82%) and 2–6 treatments in 25 (45.45%%). For the TLP region, one DN treatment was provided in 8 of the 22 total studies (36.36%) and 2–6 in 9 (40.9%). The majority of experimental designs had DN as the sole intervention. For both C and TLP regions, visual analogue scale, pressure pain threshold and range of motion were the most common outcomes.

Conclusion

For SRD, DN was primarily applied to myofascial structures for pain or TrP diagnoses. Many outcomes were improved regardless of diagnosis or treatment parameters. Most studies applied just one treatment which may not reflect common clinical practice. Further research is warranted to determine optimal treatment duration and frequency. Most studies looked at DN as the sole intervention. It is unclear whether DN alone or in addition to other treatment procedures would provide superior outcomes. Functional outcome tools best suited to tracking the outcomes of DN for SRD should be explored.

Cadaveric and ultrasonographic validation of needling placement in the obliquus capitis inferior muscle

BACKGROUND

Evidence suggests that suboccipital musculature plays an important role in headache. Proper therapeutic approaches targeting this muscle are needed.

OBJECTIVE

Our aim was to determine with fresh cadavers and ultrasound imaging if a solid needle is able to properly penetrate the obliquus capitis inferior muscle during the application of dry needling.

DESIGN

A cadaveric and human descriptive study.

METHODS

Needling insertion and ultrasound imaging of the obliquus capitis inferior muscle was conducted on 10 pain-free healthy subjects and 5 fresh cadavers. Needling insertion was performed using a 40 mm needle inserted midway between the spinous process of C2 and transverse process of C1. The needle was advanced from a posterior to anterior direction into the obliquus capitis inferior muscle with an inferior-lateral angle to reach the lamina of C2. For the cadaveric study, the obliquus capitis inferior placement was verified by resecting the superficial upper trapezius, splenius capitis, and semispinalis capitis muscles. For ultrasographic study, a linear transducer was aligned with the long axis of the obliquus capitis inferior muscle after needle insertion.

RESULTS

Both the cadaveric and ultrasonic studies showed that the needle penetrated the obliquus capitis inferior muscle during its insertion and that the tip of the needle rested against C2 laminae, thereby reaching the targeted muscle.

CONCLUSION

This anatomical and ultrasound imaging study supports the assertion that needling insertion of the obliquus capitis inferior muscle can be properly conducted by an experienced clinician.

Effectiveness of dry needling for headache: A systematic review

INTRODUCTION

Non-pharmacological treatment of patients with headache, such as dry needling (DN), is associated with less morbidity and mortality and lower costs than pharmacological treatment. Some of these techniques are useful in clinical practice. The aim of this study was to review the level of evidence for DN in patients with headache.

METHODS

We performed a systematic review of randomised clinical trials on headache and DN on the PubMed, Web of Science, Scopus, and PEDro databases. Methodological quality was evaluated with the Spanish version of the PEDro scale by 2 independent reviewers.

RESULTS

Of a total of 136 studies, we selected 8 randomised clinical trials published between 1994 and 2019, including a total of 577 patients. Two studies evaluated patients with cervicogenic headache, 2 evaluated patients with tension-type headache, one study assessed patients with migraine, and the remaining 3 evaluated patients with mixed-type headache (tension-type headache/migraine). Quality ratings ranged from low (3/10) to high (7/10). The effectiveness of DN was similar to that of the other interventions. DN was associated with significant improvements in functional and sensory outcomes.

CONCLUSIONS

Dry needling should be considered for the treatment of headache, and may be applied either alone or in combination with pharmacological treatments.

Physical therapist clinical reasoning and classification inconsistencies in headache disorders: a United States survey

Objective: The purpose of this study was to investigate the decision-making processes of physical therapists relating to evaluation and categorization of patients with headaches, including consistency with criteria proposed by the International Headache Society (IHS).Methods: A national online survey was distributed in cooperation with the Academy of Orthopaedic Physical Therapy of the American Physical Therapy Association. Three hypothetical patient case vignettes featuring headache disorders were used as assessment instruments. Additionally, data on physical therapist education, clinical experience, manual therapy training, self-efficacy, and familiarity & consistency with IHS criteria were collected. Physical therapist identification and valuation of clinical features of headache disorders were also examined in the decision-making processes.Results: Among the 384 respondents, 32.3% classified the tension-type headache case consistent with IHS criteria. The cervicogenic and migraine headache cases were classified at 54.8% and 41.7% consistent with IHS categories, respectively. Experienced clinicians and those with formal manual training categorized patient presentations with greater consistency. Clinician familiarity with IHS classification criteria was low with 73.6% collectively somewhat and not familiar, while 26.4% of physical therapists were self-described as very or moderately familiar.Discussion: Clinicians' headache categorization was significantly affected by symptom misattribution and weighting of individual examination findings. Weighting by practitioners of clinical features varied markedly with greatest emphasis being placed on detailed manual examination procedures, including passive intervertebral movements. Inconsistencies in valuation of clinical features in headache categorization suggest a need for further formal education in physical therapy educational curricula and in post-graduate education, including of IHS criteria and classification.Level of Evidence: 2a.

Cervicogenic headache treated by acupuncture based on jin theory: study protocol for a randomized controlled trial

BACKGROUND

Numerous randomized trials involving acupuncture treatment for cervicogenic headache (CEH) have been conducted in recent years, but the evidence for its effectiveness is not clear. Hence, we designed a randomized trial to evaluate the efficacy and advantages of acupuncture for treating CEH.

DESIGN

This is a parallel-design, two-arm, patient-assessor blinded, randomized, sham-controlled clinical trial. A total of 166 patients with CEH aged from 18 to 70 will be recruited and assigned randomly into a jin acupuncture group and a pseudo acupuncture group at a 1:1 ratio; they will receive 12 sessions of real acupuncture and sham acupuncture for 4 weeks, respectively, during the study. The primary outcomes are pain degree (PD) and pain rate (PR) calculated by the PainVision analyzer, as well as parameters detected by surface electromyography (SEMG). The secondary outcomes will be measured with the short-form McGill Pain Questionnaire (SF-MPQ), range of motion (ROM) of the neck, the Northwick Park Neck Pain Questionnaire (NPQ), the 36-item short-form Health Survey (SF-36), the Self-Rating Anxiety Scale (SAS), and the Self-Rating Depression Scale (SDS). Clinical assessments will be evaluated at baseline and in the fourth week as well as in the eighth and sixteenth weeks. Adverse events will be noted and recorded for the safety evaluation.

DISCUSSION

This study will provide high-quality evidence of the value of acupuncture based on jin theory for treating CEH.

TRIAL REGISTRATION

Chinese Clinical Trial Registry, ChiCTR1800015316 . Registered on 22 March 2018. Updated version AMCTR-IOR-18000157 . Registered on 1 April 2018.

The effectiveness of superficial versus deep dry needling or acupuncture for reducing pain and disability in individuals with spine-related painful conditions: a systematic review with meta-analysis

Objective: The purpose of this systematic review was to evaluate the effects of deep versus superficial dry needling or acupuncture on pain and disability for spine-related painful conditions. A secondary purpose was to account for the differences of needling location in relation to the painful area. Methods: This PROSPERO (#CRD42018106237) registered review found 691 titles through a multi-database search. Following a comprehensive search, 12 manuscripts were included in the systematic review and 10 in the meta-analysis. Standardized mean differences (SMD) with 95% confidence intervals were calculated for pain and disability. Results: The included studies demonstrated an unclear to high risk of bias recommending a cautious interpretation of the results. A consistent effect supporting deep needling over superficial with an SMD of 0.585 [0.335, 0.835], p < 0.001 from 10 articles for pain but a non-significant effect of 0.197 [-0.066, 0.461], p = 0.14 from 2 studies for disability. A temporal examination was similar for effects on pain with an SMD of 0.450 [0.104, 0.796] immediately, 0.711 [0.375, 1.048] short-term (1 to 11 weeks), and 0.470 [0.135, 0.805] for time-points ≥12 weeks. Regionally, there was a greater effect needling the area of pain locally (SMD = 0.754) compared to remotely (SMD = 0.501). Discussion: Statistically significant between-group differences were observed favoring deep needling over superficial. Both superficial and deep needling resulted in clinically meaningful changes in pain scores over time. However, differences between groups may not be clinically meaningful. More high-quality trials are needed to better estimate the effect size of deep versus superficial needling while controlling for location and depth of the lesion. Level of evidence: 1a.