Short-term effects of manipulative treatment versus a therapeutic home exercise protocol for chronic cervical pain: A randomized clinical trial

The effectiveness of hands-off approaches alone or in combination with hands-on approaches in the treatment of chronic cervical pain within a biopsychosocial framework: A systematic review

PURPOSE

This study aimed to systematically review the current literature comparing hands-off approaches with hands-on approaches from a biopsychosocial perspective of pain processing in people suffering from chronic primary neck pain (CPNP).

METHODS

An electronic search was conducted on PubMed, Web of Science, Scopus, and Cochrane Library. Initial searches were carried out in November 2022, with electronic database searches repeated on November 25, 2024. Eligibility criteria which were randomized controlled trials comparing hands-off approaches alone or in combination with hands-on approaches and hands-on approaches alone in people with CPNP were checked by two independent authors. The risk of bias was assessed using the revised Cochrane Risk of Bias Tool (RoB). The strength of conclusion was determined using the evidence-based guideline development approach.

RESULTS

Fifteen studies with a total of 1029 participants were included in this review. The RoB was rated as low RoB for two studies, some concerns for two studies and high RoB for 11 studies. Pain processing was assessed by pain intensity(100 % of the studies), pain sensitivity(53 % of the studies), pain-related participation in social roles(46 % of the studies), pain-related emotions(26 % of the studies), and pain-related beliefs(6 % of the studies). Limited quality of evidence was found for the hands-off approaches alone being more effective on pain intensity than hands-on approaches alone in the long term. Limited- to moderate-quality of evidence was found for hands-off approaches combined with hands-on approaches, being more effective than hands-on approaches alone in improving pain intensity, pain sensitivity, pain-related participation in social roles, pain-related emotions, and pain-related beliefs in the short-, mid- or long-term.

CONCLUSIONS

The current findings suggest that hands-off approaches alone are superior to hands-on approaches in the long term, at least for pain intensity. Hands-off approaches in combination with hands-on approaches were also more effective than hands-on approaches for pain processing. However, substantial heterogeneity warrants a cautious interpretation of these results. More high-quality, randomized, controlled trials with homogenous data collection and larger sample sizes are needed.

Neuromuscular Response to High-Velocity, Low-Amplitude Spinal Manipulation-An Overview

The clinical use of spinal manipulation to treat musculoskeletal conditions has nearly tripled in the United States since 1980, and it is currently recommended by most global clinical guidelines as a conservative treatment for musculoskeletal pain, despite a lack of knowledge concerning its mechanisms of action. This overview highlights evidence of direct neuromuscular responses to high-velocity, low-amplitude spinal manipulation (HVLA-SM) as delivered by chiropractic, osteopathic, and physical therapy clinicians, with an intent to foster greater interprofessional dialogue and collaborative research to better address current gaps in mechanistic knowledge of the neuromuscular response to HVLA-SM. Three databases (PubMed, CINAHL Ultimate (EBSCO), EMBASE (Elsevier)) were searched from 2000 to December 2024 with specific search terms related to thrust HVLA-SM and the neuromuscular response. To focus strictly on neuromuscular responses related to HVLA-SM, this literature overview excluded articles using non-HVLA-SM manual therapy techniques (i.e., massage, non-thrust joint mobilization, and/or combined HVLA-SM with other forms of treatment such as exercise or non-thrust joint mobilization) and studies in which patient-centered outcomes (i.e., pain scores) were the primary outcomes of the HVLA-SM interventions. Pediatric studies, animal studies, and studies in languages other than English were also excluded. One-hundred and thirty six articles were identified and included in this overview. Neuromuscular findings related to HVLA-SM in the areas of electromyography (EMG), muscle thickness, muscle strength, reflexes, electroencephalogram (EEG), and evoked potential were often mixed; however, evidence is beginning to accumulate either in favor of or opposed to particular neuromuscular responses to HVLA-SM as larger and more scientifically rigorous studies are being performed. Recurrent limitations of many HVLA-SM-related studies are small sample sizes, leading to a lack of generalizability, and the non-standardization of HVLA-SM delivery, which has prevented researchers from arriving at definitive conclusions regarding neuromuscular responses to HVLA-SM. Discussions of future neuromuscular research needs related to HVLA-SM are included for clinicians and researchers inside and outside of the field of manual therapy, to advance this field.

Effects of therapeutic exercise on pain processing in people with chronic non-specific neck pain - A systematic review and meta-analysis

BACKGROUND

Emerging evidence suggests that individuals with chronic non-specific neck pain may experience altered sensory processing, potentially contributing to the modest response to therapeutic exercise treatments.

OBJECTIVE

This systematic review aims to explore the effect of therapeutic exercise on pain processing among patients with chronic non-specific neck pain.

METHODS

A systematic search was conducted in multiple databases (PubMed, EMBASE, CINAHL, PEDro, SportDiscus, and Cochrane CENTRAL) from inception to June 2023. Inclusion criteria included randomized controlled trials (RCT) comparing therapeutic exercise to non-exercise treatments or no treatment. The screening and data extraction was conducted by two reviewers. The methodological quality was evaluated using the PEDro scale and the certainty of evidence using GRADE. The primary outcomes assessed were pressure pain threshold (PPT), temporal summation, and conditioned pain modulation.

RESULTS

Thirteen trials included a total of 948 participants, with 586 in the exercise therapy group and 362 in the non-exercise group. The therapeutic exercise was not superior to non-exercise treatments for both local and PPT in the immediate (MD = 0.13, 95%CI = -0.18 to 0.43), and short-term follow-up (MD = 0.17, 95%CI = -0.27 to 0.61). In the medium term, therapeutic exercise demonstrated a small effect size in increasing local PPT (Kg/cm2) (MD = 0.64, 95%CI = 0.08 to 1.19) compared to non-exercise interventions. The certainty of evidence for these outcomes was very low.

CONCLUSIONS

There is very low certainty of evidence that therapeutic exercise is not superior than non-exercise treatment on pain processing in patients with chronic non-specific neck pain.

Efficacy of oropharyngeal exercises as an adjuvant therapy for obstructive sleep apnea: A randomized controlled trial

PURPOSE

Some patients with mild-to-moderate obstructive sleep apnea (OSA) undergoing mandibular advancement device (MAD) therapy may exhibit residual sleep-breathing abnormalities. These cases require adjunctive treatment to further reduce the remaining airway inadequacy, which may affect the health and quality of life. This clinical trial was conducted since the oropharyngeal exercise, which aims to enhance the muscular function of the upper airway, combined with MAD, is unknown. We assessed the possible improvements in respiratory event parameters and lip and tongue physiological properties in patients with OSA who received oropharyngeal exercises for 2 months as an adjunct to MAD therapy.

METHODS

Twenty-three participants with OSA who had been using MAD but still had residual apnea-hypopnea were randomly allocated to either the oropharyngeal exercise (OE group; N=12) or the sham exercise group (N=11). Lip and tongue strength, endurance, daytime sleepiness, respiratory event index (REI), and the lowest oxygen saturation (SpO2 nadir) were determined.

RESULTS

Within and between the treatment groups, no significant improvement in the REI or SpO2 nadir was found. In both groups, there was a significant reduction in the Epworth Sleepiness Scale at 2 months (OE, P = 0.02; control, P = 0.02). In the OE group, lip endurance (P = 0.03), anterior tongue strength (P = 0.02), and endurance (P = 0.02) increased after 2-month of exercise, but only anterior tongue endurance increased significantly compared with the sham control (P = 0.01).

CONCLUSIONS

This study found that adjunctive OE to MAD showed no additive effect in treating patients with moderate OSA who had a mild residual apnea-hypopnea index following MAD treatment. However, the exercises successfully enhanced lip and anterior tongue endurance, as well as anterior tongue strength.

The majority of clinical trials assessing mobilization and manipulation for neck pain lack a pragmatic approach: a systematic review of 174 trials

BACKGROUND

Disorders of the cervical spine are some of the costliest musculoskeletal conditions to manage globally. Joint mobilization and manipulation have been shown to be an effective treatment for neck pain. However, the generalizability and clinical translation depends on the nature of the trial designs that inform its use. The extent to which randomized control trials (RCTs) assessing manual therapy treatments for cervical spine disorders fall on the efficacy (explanatory) -effectiveness (pragmatic) spectrum often informs how the findings are translated into clinical practice.

OBJECTIVE

The aim of this systematic review was to determine where RCTs of manual therapy for neck disorders fall on the efficacy-effectiveness spectrum.

METHODS

A search of three electronic databases including PubMed, CINAHL, and CENTRAL were completed for trials published from inception to May 2023. RCTs in which joint mobilization or manipulation were used to treat cervical spine disorders were assessed on the effectiveness-efficacy spectrum using the Rating of Included Trials on the Efficacy-Effectiveness Spectrum (RITES) tool and risk of bias using the Revised Cochrane Risk of Bias tool.

RESULTS

A total of 174 trials met eligibility. RITES domain two trial setting (71.3% vs 16.1%), domain three flexibility of intervention(s) (62.1% vs 23%), and domain four clinical relevance of experimental and comparison intervention(s) (51.7% vs 29.3%) all favored efficacy over effectiveness. Domain one participant characteristic(s) had a slightly greater emphasis on effectiveness compared to efficacy (36.8% vs 44.8%). Most studies (96%) had at least some risk of bias.

CONCLUSION

Over half of the RCTs assessing the treatment effect of joint mobilization and manipulation for neck pain favor efficacy (explanatory) over effectiveness (pragmatic) designs. Future RCTs on this topic should consider a greater emphasis on pragmatic trial design components in order to better reflect real-world translation to clinical practice.

Reliability and usability of a novel inertial sensor-based system to test craniocervical flexion movement control

BACKGROUND

Neck pain has a significant global impact, ranking as the fourth leading cause of disability. Recurrent neck pain often leads to impaired sensorimotor control, particularly in craniocervical flexion (CFF). The Craniocervical Flexion Test (CCFT) has been widely investigated to assess the performance of deep cervical flexor muscles. However, its use requires skilled assessors who need to subjectively detect compensations, progressive increases in range of motion (ROM) or excessive superficial flexor activation during the test. The aim of this study was to design and develop a novel Craniocervical Flexion Movement Control Test (CFMCT) based on inertial sensor technology and real-time computer feedback and to evaluate its safety and usability, as well as inter and intra-rater reliability in both healthy individuals and patients with neck pain.

METHODS

We used inertial sensor technology associated with new software that provides real-time computer feedback to assess CCF movement control through two independent test protocols, the progressive consecutive stages protocol (including progressive incremental stages of ROM) and the random stages protocol (providing dynamic and less predictable movement patterns). We determined intra and inter-rater reliability and standard error of the measurement for both protocols. The participants rated their usability was analysed through the System Usability Scale (SUS) and possible secondary effects associated with the tests were registered.

RESULTS

The progressive consecutive stages protocol and the random stages protocol were safe and easy to use (SUS scores of 82.00 ± 11.55 in the pain group and 79.56 ± 13.36 in the asymptomatic group). The progressive consecutive stages protocol demonstrated good inter-rater reliability (intraclass correlation coefficient [ICC] ≥ 0.75) and moderate to good intra-rater reliability (ICC 0.62-0.80). However, the random stages protocol exhibited lower intra-rater reliability, especially in the neck pain group, where the reliability values were poor in some cases (ICC 0.48-0.72).

CONCLUSION

The CFMCT (progressive consecutive stages protocol) is a promising instrument to evaluate CCF motor control in patients with chronic neck pain. It has potential for telehealth assessment and easy adherence for exercise prescription and seems to be a safe and usable tool for patients with pain and asymptomatic individuals. Its use as a test or for exercise needs to be further investigated to facilitate its transfer to clinical practice.

Does manual therapy meaningfully change quantitative sensory testing and patient reported outcome measures in patients with musculoskeletal impairments related to the spine?: A 'trustworthy' systematic review and meta-analysis

OBJECTIVES

To perform a 'trustworthy' systematic review (SR) with meta-analysis on the potential mechanisms of manual therapy used to treat spinal impairments.

DESIGN

SR with meta-analysis.

LITERATURE SEARCH

Articles published between January 2010 and October 2022 from CENTRAL, CINAHL, MEDLINE, PubMed, ProQuest, and PEDro.

METHODS

This SR included English-language randomized clinical trials (RCTs) involving manual therapy to treat spinal impairments in adults. The primary outcome was pressure pain thresholds (PPTs). To synthesize RCTs with high confidence in estimated effects using the GRADE, RCTs with questionable prospective, external, and internal validity, and high risk of bias (RoB) were excluded.

RESULTS

Following title and abstract screening, 89 full-text RCTs were reviewed. Twenty-two studies included the criteria of interest. Sixteen were not prospectively registered, two contained discussion/conclusions judged to be inconsistent with the registry, and one was rated as having a high RoB. Three studies met the inclusion criteria; heterogeneous interventions and locations for PPT testing prevented synthesis into practice recommendations. The two studies with high confidence in estimated effects had small effect sizes, and one study had confidence intervals that crossed zero for the outcome measures of interest.

DISCUSSION

Standardized PPT testing, as a potential measure of centrally mediated pain, could provide clues regarding the mechanisms of manual therapy or help identify/refine research questions.

CONCLUSION

High-quality RCTs could not be synthesized into strong conclusions secondary to the dissimilarity in research designs. Future research regarding quantitative sensory testing should develop RCTs with high confidence in estimated effects that can be translated into strong recommendations.

The effects of basic body awareness therapy on balance in patients with chronic neck pain: a randomised crossover trial

PURPOSE

This study aimed to compare the effects of basic body awareness therapy (BBAT) and conventional treatments (CT) on balance in patients with chronic neck pain.

METHODS

Thirty-five patients with neck pain participated in this randomised two-period crossover trial. Patients were divided into A (BBAT/CT) (n = 17) and B (CT/BBAT) (n = 18) groups. Group A received BBAT twice a week for 6 weeks, whereas Group B received CT within the same parameters. After a 5-week washout period, the treatments received by the groups were changed. The primary outcome was balance, assessed via the sensory organisation test (SOT) using the computerised dynamic posturography device. The secondary outcome was pain assessed by the visual analogue scale. Assessments were performed before and after primary and secondary treatments.

RESULTS

In Group A, the SOT conditions 4, 5, 6; composites score; and visual and vestibular system scores increased after BBAT; however, only condition five scores and vestibular system scores increased (p < .05) in Group B, which started with CT. Within the groups, both treatments were effective for easing pain (p < .05).

CONCLUSIONS

Although patients who started the therapy with BBAT showed more improvement in balance, no differences were observed between the therapies.

Resistance, Motor Control, and Mindfulness-Based Exercises Are Effective for Treating Chronic Nonspecific Neck Pain: A Systematic Review With Meta-Analysis and Dose-Response Meta-Regression

OBJECTIVE: We aimed to analyze the effects and dose-response relationship of the most effective exercises for improving pain and disability in people with chronic nonspecific neck pain. DESIGN: Intervention systematic review with meta-analysis. LITERATURE SEARCH: We searched the PubMed, PEDro, and CENTRAL databases from their inception to September 30, 2022. STUDY SELECTION CRITERIA: We included randomized controlled trials that involved people with chronic neck pain adopting a longitudinal exercise intervention and assessed one pain and/or disability outcome. DATA SYNTHESIS: Restricted maximum-likelihood random-effects meta-analyses were modeled separately for resistance, mindfulness-based, and motor control exercises; standardized mean differences (Hedge's g, standardized mean difference [SMD]) were effect estimators. Meta-regressions (dependent variable: effect sizes of the interventions; independent variables: training dose and control group effects) were conducted to explore the dose-response relationship for therapy success of any exercise type. RESULTS: We included 68 trials. Compared to true control, effects on pain and disability were significantly larger for resistance exercise (pain: SMD, -1.27; 95% confidence interval [CI]: -2.26, -0.28; |2 = 96%; disability: SMD, -1.76; 95% CI: -3.16, -0.37; |2 = 98%), motor control exercise (pain: SMD, -2.29; 95% CI: -3.82, -0.75; |2 = 98%; disability: SMD, -2.42; 95% CI: -3.38, -1.47; |2 = 94%), and Yoga/Pilates/Tai Chi/Qui Gong exercise (pain: SMD, 1.91; 95% CI:-3.28, -0.55; |2 = 96%; disability: SMD, -0.62; 95% CI: -0.85, -0.38; |2 = 0%). Yoga/Pilates/Tai Chi/Qui Gong exercise was more effective than other exercises (SMD, -0.84; 95% CI: -1.553, -0.13; |2 = 86%) for reducing pain. For disability, motor control exercise was superior to other exercises (SMD, -0.70; 95% CI: -1.23, -0.17; |2 = 98%). There was no dose-response relationship for resistance exercise (R2 = 0.32). Higher frequencies (estimate = -0.10) and longer durations (estimate = -0.11) of motor control exercise had larger effects on pain (R2 = 0.72). Longer sessions (estimate = -0.13) of motor control exercise had larger effects on disability (R2 = 0.61). CONCLUSION: Resistance, mindfulness-based, and motor control exercises were effective for reducing neck pain (very low- to moderate-certainty evidence). Higher frequencies and longer duration of sessions had a significant effect on pain for motor control exercise. J Orthop Sports Phys Ther 2023;53(8):1-41. Epub: 20 June 2023. doi:10.2519/jospt.2023.11820.

Effects of isometric training on the treatment of patients with neck pain: A meta-analysis

BACKGROUND

The aim of this meta-analysis was to evaluate the effects of isometric training interventions on the treatment of patients with neck pain.

METHODS

Electronic databases, including PubMed, The Cochrane Library, Web of Science, etc., were retrieved and screened by computer, and 18 articles with a total of 868 samples were included. Review Manager 5.4 software was used for the meta-analysis.

RESULTS

The meta-analysis results showed that isometric training can reduce visual analogue scale scores of patients[weighted mean difference (95% confidence interval) = -0.80(-0.88, -0.73), P < .00001]; decrease patients neck disability index score, isometric training was better than the control group [weighted mean difference (95% confidence interval) = 5.55 (4.57, 6.53), P < .0001]; in improving patients' motion of the sagittal plane [weighted mean difference (95% confidence interval) = 1.53 (-0.40, 3.63), P = .12], coronal plane [weighted mean difference (95% confidence interval) = 2.12 (0.56, 3.68), P = .008], horizontal plane [weighted mean difference (95% confidence interval) = 3.58 (1.56, 5.59), P = .0005], isometric training was superior to the control group. More than 20 isometric training interventions had more significant effects on visual analogue scale and range of motion. And isometric training for more than 8 weeks had more significant effects on the visual analogue scale and neck disability index scores.

CONCLUSION

Isometric training has significant effects on relieving neck pain, improving neck dysfunction, and improving joint mobility. However, the two indicators of visual analogue scale and neck disability index had more influential factors; the sample size of most studies was relatively small, and the intervention measures in the control group were relatively simple. It is expected that more abundant research will expand and deepen in the future, laying the foundation for meta-analysis.

Comparison of the efficacy of mud-pack and hot-pack treatments in chronic non-specific neck pain: A single-blind, randomized-controlled study

Objectives

This study aims to compare the short-term efficacy of mud-pack (MP) and hot-pack (HP) treatments with the same temperature and duration on sleep, function, depression, and quality of life for chronic non-specific neck pain (CNNP) patients.

Patients and methods

Between December 2018 and September 2019, a total of 70 patients with CNNP diagnosis (12 males, 58 females; mean age: 50.2±9.4 years; range, 24 to 65 years) were included. The patients were divided into two groups. The MP group (n=35) had a total of 15 sessions of MP for 20 min + transcutaneous electrical nerve stimulation (TENS) for 20 min + home exercise (HE) on five days per week for three weeks. The HP group (n=35) had 15 similar sessions of HP for 20 min + TENS for 20 min + HE. The patients were assessed with the Visual Analog Scale (VAS-pain), VAS physician's and patient's global assessments, modified Neck Disability Index (mNDI), Beck Depression Inventory (BDI), Pittsburgh Sleep Quality Index (PSQI), and Short Form-36 (SF-36) measures before treatment, at the end of post-treatment third week and one month later.

Results

In the MP group, there were statistically significant improvements in all parameters at the end of treatment three-week and one-month follow-up (p<0.05), apart from SF-36 Vitality/Energy (SF-36V/E) at the end of treatment and SF-36 General Health (SF-36GH) at one month. In the HP group, there were statistically significant improvements observed for all parameters (p<0.05), apart from the SF-36 Physical Role and SF-36GH at the end of treatment third week and SF-36V/E at the first-month assessment. The VAS-pain(p<0.001), mNDI (p=0.019), BDI (p=0.002), SF-36GH (p<0.001), SF-36V/E (p<0.001) and SF-36 mental health (p<0.001) showed statistically significantly superior improvements in the MP group (p<0.05).

Conclusion

In CNNP patients, both MP and HP treatments are effective. However, MP therapy has more positive effects on pain, function, depression, and quality of life parameters. The MP treatment may be used in addition to TENS treatment for CNNP patients.

A Single-Center Study Comparing the Effects of Thoracic Spine Manipulation vs Mobility Exercises in 26 Office Workers with Chronic Neck Pain: A Randomized Controlled Clinical Study

Background

Neck pain is associated with computer work, poor posture, imbalanced neck muscles, and fatigue, particularly in office workers. This study from a single center aimed to compare the effects of thoracic spine mobility exercise and thoracic spine manipulation to improve cervical spine range of motion in 26 office workers who had chronic neck pain for more than 12 weeks.

Material/Methods

The participants were 26 office workers with neck pain lasting >12 weeks. These participants were randomly assigned to undergo TSME (n=13) or TSM (n=13). Both groups underwent cervical joint mobilization and deep cervical flexor muscle exercises for 25 min a day, twice weekly, for 6 weeks. The TSME group additionally performed TSME 15 min a day, twice a week, for 6 weeks, while the TSM group received TSM 2 times a day, twice a week, for 6 weeks. Cervical and thoracic spine ROM, numeric pain rating scale (NPRS), and neck disability index (NDI) were measured before and after interventions. The ROM of cervical and thoracic spine was measured using a dual inclinometer.

Results

Both groups showed significant changes in cervical spine ROM, thoracic spine ROM, NPRS, and NDI after intervention compared to before intervention (P<0.05). Cervical spine right lateral flexion and right rotation differed significantly between the groups (P<0.05), while thoracic spine ROM, NPRS, and NDI did not.

Conclusions

TSME and TSM have similar effects in improving pain and disability in office workers with non-specific chronic neck pain.

Results of a feasibility randomised controlled trial of osteopathy on neck-shoulder pain in computer users

BACKGROUND

Computer use is a well-known source of chronic pain, leading to absenteeism and reduced productivity and well-being. This study evaluated the feasibility of conducting a full-scale randomised controlled trial. Several methodological variables defined trial feasibility.

MATERIALS AND METHODS

Thirty adults, daily computer users reporting pain, were recruited. Data collection took place at LABIOMEP. Participants were randomised into 1 of 3 parallel groups and received either osteopathic, sham or no treatment. Only the volunteers were blind to group assignments. The primary objective was to study the feasibility and acceptability of the protocol.

RESULTS

Of 77 participants interested, 30 were included and randomised into three groups of ten. All participants concluded the study, and all the data was analysed. The feasibility outcomes were deemed appropriate. No adverse events or severe side effects were reported or identified.

CONCLUSION

Studying the efficacy of osteopathic consultation on computer users by conducting an RCT is feasible and safe. With adjustments, a full-scale study can be designed.

TRIAL REGISTRATION

ClinicalTrials.gov with the identifier: NCT04501575. Date registered August 06, 2020.

Clinical Effectiveness and Efficacy of Chiropractic Spinal Manipulation for Spine Pain

Spine pain is a highly prevalent condition affecting over 11% of the world's population. It is the single leading cause of activity limitation and ranks fourth in years lost to disability globally, representing a significant personal, social, and economic burden. For the vast majority of patients with back and neck pain, a specific pathology cannot be identified as the cause for their pain, which is then labeled as non-specific. In a growing proportion of these cases, pain persists beyond 3 months and is referred to as chronic primary back or neck pain. To decrease the global burden of spine pain, current data suggest that a conservative approach may be preferable. One of the conservative management options available is spinal manipulative therapy (SMT), the main intervention used by chiropractors and other manual therapists. The aim of this narrative review is to highlight the most relevant and up-to-date evidence on the effectiveness (as it compares to other interventions in more pragmatic settings) and efficacy (as it compares to inactive controls under highly controlled conditions) of SMT for the management of neck pain and low back pain. Additionally, a perspective on the current recommendations on SMT for spine pain and the needs for future research will be provided. In summary, SMT may be as effective as other recommended therapies for the management of non-specific and chronic primary spine pain, including standard medical care or physical therapy. Currently, SMT is recommended in combination with exercise for neck pain as part of a multimodal approach. It may also be recommended as a frontline intervention for low back pain. Despite some remaining discrepancies, current clinical practice guidelines almost universally recommend the use of SMT for spine pain. Due to the low quality of evidence, the efficacy of SMT compared with a placebo or no treatment remains uncertain. Therefore, future research is needed to clarify the specific effects of SMT to further validate this intervention. In addition, factors that predict these effects remain to be determined to target patients who are more likely to obtain positive outcomes from SMT.

Pain Pathways and Nervous System Plasticity: Learning and Memory in Pain

Objective This article reviews the structural and functional changes in pain chronification and explores the association between memory and the development of chronic pain. Methods PubMed was searched using the terms "chronic pain," "central sensitization," "learning," "memory," "long-term potentiation," "long-term depression," and "pain memory." Relevant findings were synthesized into a narrative of the processes affecting pain chronification. Results Pain pathways represent a complex sensory system with cognitive, emotional, and behavioral influences. Anatomically, the hippocampus, amygdala, and anterior cortex-central to the encoding and consolidation of memory-are also implicated in experiential aspects of pain. Common neurotransmitters and similar mechanisms of neural plasticity (eg, central sensitization, long-term potentiation) suggest a mechanistic overlap between chronic pain and memory. These anatomic and mechanistic correlates indicate that chronic pain and memory intimately interact on several levels. Longitudinal imaging studies suggest that spatiotemporal reorganization of brain activity accompanies the transition to chronic pain, during which the representation of pain gradually shifts from sensory to emotional and limbic structures. Conclusions The chronification of pain can be conceptualized as activity-induced plasticity of the limbic-cortical circuitry resulting in reorganization of the neocortex. The state of the limbic-cortical network determines whether nociceptive signals are transient or chronic by extinguishing pathways or amplifying signals that intensify the emotional component of nociceptive inputs. Thus, chronic pain can be seen as the persistence of the memory of pain and/or the inability to extinguish painful memories. Ideally, pharmacologic, physical, and/or psychological approaches should reverse the reorganization accompanying chronic pain.

Completeness of the description of manipulation and mobilisation techniques in randomized controlled trials in neck pain; A review using the TiDieR checklist

STUDY DESIGN

A secondary analysis of a systematic review.

BACKGROUND

Manipulations or mobilizations are commonly used interventions in patients with mechanical neck pain. The treatment effects have often been studied in randomized controlled trials (RCT) which are generally considered the gold standard in evaluating the treatment effects, mainly due to its high internal validity. External validity is defined as the extent to which the effects can be generalised to clinical practice. An important prerequisite for this is that interventions used in clinical trials can be replicated in clinical practice. It can be questioned if interventions utilized in randomized controlled trials can be translated into clinical practice.

OBJECTIVES

The overall aim of this study is to examine whether the quality of the description of manipulation and mobilization interventions is sufficient for to replication of these interventions in clinical practice.

METHODS

A comprehensive literature search was performed. Two independent researchers used the Template for Intervention Description and Replication (TIDieR) which is a 12-item checklist for describing the completeness of the interventions.

RESULTS

Sixty-seven articles were included that used manipulation and/or mobilization interventions for patients with mechanical neck pain. None of the articles describe the intervention e.g. all the items on the TIDieR list. Considering item 8 (a-f) of the TIDieR checklist only one article described the used techniques completely.

CONCLUSION

Manipulation or a mobilization interventions are poorly reported in RCTs, which jeopardize the external validity of RCTs, making it difficult for clinicians and researchers to replicate these interventions.

Physiotherapy Based on a Biobehavioral Approach with or Without Orthopedic Manual Physical Therapy in the Treatment of Nonspecific Chronic Low Back Pain: A Randomized Controlled Trial

Objective

To compare the effectiveness of a biobehavioral approach with and without orthopedic manual physical therapy on the intensity and frequency of pain in patients diagnosed with nonspecific chronic low back pain.

Methods

A single-blind randomized controlled trial. Fifty patients were randomly allocated into two groups: one group received biobehavioral therapy with orthopedic manual physical therapy, and the other group received only biobehavioral therapy. Both groups completed a total of eight sessions, with a frequency of two sessions per week. The somatosensory, physical, and psychological variables were recorded at baseline and during the first and third month after initiation of treatment.

Results

In both groups, the treatment was effective, presenting significant differences for all the variables in the time factor. There were no significant differences between groups in intensity or frequency of pain, with a large effect size (&gt;0.80), but there were intragroup differences for both intervention groups at one- and three-month follow-up. There were also no significant differences between groups in the secondary variables during the same follow-up period.

Conclusions

The results of this study suggest that orthopedic manual physical therapy does not increase the effects of a treatment based on biobehavioral therapy in the short or medium term, but these results should be interpreted with caution.