Tackling low back pain in Brazil: a wake-up call

Comparing the efficacy of two E-learning programs on physiotherapists' knowledge, attitudes, and confidence in musculoskeletal pain management: A randomized trial

BACKGROUND

Physiotherapists play a crucial role in managing patients with musculoskeletal pain. However, their training often lacks focus on pain management.

OBJECTIVES

This randomized controlled trial evaluated the effects of two e-learning programs on physiotherapists' knowledge, attitudes, and confidence in musculoskeletal pain management.

METHODS

Eligible participants had active professional registration, treated patients with musculoskeletal pain, and had internet access. Participants were randomized into two groups (video-based and booklet-based), with interventions lasting 5 weeks. Assessments were conducted at baseline, 6 weeks (T1), and 12 weeks (T2) using the Neurophysiology of Pain Questionnaire, a pain attitude survey, and self-reported confidence.

RESULTS

A total of 211 physiotherapists were randomized (video = 106; booklet = 105). Both groups improved pain neurophysiology knowledge, with the booklet group scoring higher at T1 (adjusted mean difference = 1.25, 95%CI = 0.93 to 1.58) and T2 (adjusted mean difference = 1.30, 95%CI = 0.97 to 1.63). Attitudes varied: the booklet group improved in emotion (adjusted mean difference = -0.19, 95%CI = -0.35 to -0.03) and control (adjusted mean difference = -0.20, 95%CI = -0.37 to -0.03) at T2, while the video group improved in solicitude (adjusted mean difference = -0.37, 95% CI: 0.55 to -0.19) and disability at T1 and T2. No significant effects were found in the medical cure domain, and no interaction effects were observed in the physical harm domain. Confidence increased in both groups, with no between-group differences.

CONCLUSION

Both e-learning programs effectively enhanced physiotherapists' knowledge, attitudes, and confidence in musculoskeletal pain management, demonstrating the value of e-learning for continuing education.

Trends in work-absenteeism and return-to-work among people with spine pain in middle income countries: A need for evidence

BACKGROUND

Spine pain is a leading cause of functional disability and work absenteeism globally. Multiple prognostic factors influencing return-to-work(RTW) among people with spine pain are reported from high-income-countries. However, findings from high-income-countries with 16 percent world's population, cannot be extrapolated to low-middle-income countries (LMICs) which constitutes 84 percent world's population. Hence, paucity of evidence from LMICs motivated present literature review.

OBJECTIVE

To study work absenteeism and RTW profile of people with spine pain in LMICs, including intrinsic and extrinsic factors influencing RTW and time taken to RTW.

METHODS

Literature search in scientific databases: PubMed, Scopus, CINAHL, Cochrane and Google Scholar yielded 3 articles from middle-income countries; including 2 cohort studies and 1cross-sectional study. No study was identified from low-income countries.

RESULTS

Review findings reported cessation of work or work absenteeism due to spine-pain; factors influencing RTW; proportion of people returning to work and period of RTW. Intrinsic factors which influenced work absenteeism and RTW included-age, gender, BMI, stage of spine pain and pain severity. Extrinsic factors were heavy physically demanding occupation, informal employment, compensatory leave and lack of access to rehabilitation services at primary and secondary healthcare levels.

CONCLUSIONS

Scarce evidence on work absenteeism and RTW among people with spine pain is available only from middle-income countries. Trends of work practice underpinned by pain-coping strategies among people with spine pain in LMICs with inadequate access to evidence-based spine-care, out-of-pocket health expenditure and lack of compensation guidelines warrant urgent research attention.

The methodological quality of clinical trials of physical therapy for low back pain varies between countries with different income levels. A meta-epidemiological study

BACKGROUND

Low back pain is a severe global health problem. To face this issue, testing interventions using rigorously performed randomized controlled trials is essential. However, it is unclear if a country's income level is related to the quality of trials conducted.

OBJECTIVE

To compare the frequency and methodological quality of randomized controlled trials of physical therapy interventions for low back pain conducted in countries with different income levels.

METHODS

This meta-epidemiological study retrieved trials from the Physiotherapy Evidence Database (PEDro), Literatura Latino Americana em Ciências da Saúde (LILACS), and Scientific Electronic Library Online (SciELO). The methodological quality was evaluated using the 0-10 PEDro scale. Then we calculated the mean differences with a 95% confidence interval and performed an ANOVA test with Bonferroni correction to compare the PEDro scores between income groups.

RESULTS

We included 2552 trials; 70.4% were conducted in high-income countries. The mean (standard deviation) PEDro score of all trials was 5.5 (0.03) out of 10. Trials from low- or lower-middle-income countries had lower methodological quality than those from upper-middle- and high-income countries, but the mean difference was small (-0.6 points (95% CI -0.9, -0.3), and -0.7 points (95% CI -1.1, -0.5) respectively).

CONCLUSION

Income level influences the methodological quality of trials of physical therapy intervention but is not the only factor. Implementing strategies to improve the methodological rigor of trials in patients with low back pain is necessary in all countries, regardless of income level.

Clinical care standards for the management of low back pain: a scoping review

The objective of this study is to compare and contrast the quality statements and quality indicators across clinical care standards for low back pain. Searches were performed in Medline, guideline databases, and Google searches to identify clinical care standards for the management of low back pain targeting a multidisciplinary audience. Two independent reviewers reviewed the search results and extracted relevant information from the clinical care standards. We compared the quality statements and indicators of the clinical care standards to identify the consistent messages and the discrepancies between them. Three national clinical care standards from Australia, Canada, and the United Kingdom were included. They provided from 6 to 8 quality statements and from 12 to 18 quality indicators. The three standards provide consistent recommendations in the quality statements related to imaging, and patient education/advice and self-management. In addition, the Canadian and Australian standards also provide consistent recommendations regarding comprehensive assessment, psychological support, and review and patient referral. However, the three clinical care standards differ in the statements related to psychological assessment, opioid analgesics, non-opioid analgesics, and non-pharmacological therapies. The three national clinical care standards provide consistent recommendations on imaging and patient education/advice, self-management of the condition, and two standards (Canadian and Australian) agree on recommendations regarding comprehensive assessment, psychological support, and review and patient referral. The standards differ in the quality statements related to psychological assessment, opioid prescription, non-opioid analgesics, and non-pharmacological therapies.

The care pathway of individuals with spinal disorders in a Health Care Network in the Federal District, Brazil: a retrospective study

BACKGROUND

Understanding the care pathway is essential to identify how to effectively treat spinal disorders. However, there is no specific data on the pathway of these individuals in the Health Care Networks (HCN) in Brazil.

OBJECTIVE

To investigate the pathway of individuals with non-specific spinal disorders (NSD) in the HCN in the Federal District, Brazil, and verify the interventions adopted, and to test whether sociodemographic and clinical variables predict the number of imaging tests, prescribed medication, and the first HCN access.

METHODS

Retrospective study that analysed electronic records of 327 individuals with NSD between 2012 and 2018. Generalized linear models estimated the association between sociodemographic and clinical data and number of drugs prescribed and imaging tests requested. Multinomial logistic regression estimated the association between clinical and demographic variables and setting of first access.

RESULTS

The median age was 57 years, and 75.5% were women. Emergency Department (ED) was the most accessed setting (43.7%), and back pain was the most prevalent condition (84.5%). Most individuals underwent imaging tests (60%) and drug prescriptions (86%). Physical exercises were prescribed to 13%, and 55% were referred to physical therapy. Women were more likely to first access the ED.

CONCLUSION

The ED was the most used setting by people with NSD. Few participants received exercise prescriptions and half were referred to physical therapists. Individuals who used outpatient clinics and primary care received less drug prescriptions, and women were more likely to first access the ED. Increasing age was associated with greater chance of first accessing Outpatient Clinics.

Care seek behavior for low back pain in southern Brazil during the COVID-19 pandemic: a panel data analysis

BACKGROUND

During the COVID-19 pandemic, people with low back pain (LBP) might have avoided seeking care for their pain. We aimed to investigate how the COVID-19 pandemic has affected LBP care seeking behavior among adults.

METHODS

Data from four assessments of the PAMPA cohort were analyzed. Participants who reported experiencing LBP during wave one both before and during social restrictions (n = 1,753 and n = 1,712, respectively), wave two (n = 2,009), and wave three (n = 2,482) were included. We asked participants about sociodemographic, behavioral, and health factors and outcomes related to LBP. Poisson regression analyses were conducted, and data are presented as prevalence ratios (PR) and respective 95% confidence interval (95%CI).

RESULTS

Overall, care seeking behavior decreased by half in the first months of restrictions, from 51.5% to 25.2%. Although there was an increase in care seeking behavior observed in the other two assessments (nearly 10 and 16 months after restrictions), it was insufficient to reach pre-pandemic levels. In the first months of restrictions, a similar scenario was observed for specific care, such as general practitioner and exercise professional care, with proportions of pre-pandemic levels reached after 10 and 16 months. Women were more likely to seek care for LBP 10 and 16 months after restrictions (PR 1.30 95%CI 1.11; 1.52, PR 1.22 95%CI 1.06; 1.39, respectively). Also, those participants who worked, were physically active, and reported pain-related disability and high pain levels were more likely to seek care at all time points assessed.

CONCLUSION

Overall, care-seeking behavior for LBP significantly decreased in the first months of restrictions and increased in the following months; however, this behavior remained lower than pre-pandemic levels.

Recurrence of an Episode of Low Back Pain: An Inception Cohort Study in Emergency Departments

OBJECTIVES

To (1) determine the 1-year estimate of recurrence of low back pain (LBP) in a cohort of people presenting to emergency departments who have recently recovered from an episode of acute LBP in a middle-income country, (2) estimate a recurrence of LBP stratified by the STarT Back Screening Tool (SBST), and (3) determine prognostic factors for the recurrence of LBP.

DESIGN

Prospective inception cohort study.

METHODS

We included 238 patients who presented to emergency departments with recent-onset nonspecific LBP in São Paulo, Brazil. The outcome was the recurrence of an episode of LBP, assessed using 2 definitions: (1) 12-month recall alone and (2) pain measurements at follow-up. Prognostic factors were determined by logistic regression.

RESULTS

Within 1 year, the estimated recurrence of an episode of LBP ranged from 35% (79/225 events) (first definition) to 44% (100/226 events) (second definition). When patients were stratified by the SBST, the estimate of recurrence ranged from 29% to 37% (21-27/73 events) for low-risk patients, from 33% to 39% (24-28/72 events) for medium-risk patients, and from 43% to 56% (34-45/80 events) for high-risk patients. Age, perceived risk of persistent LBP, and disability were independent prognostic factors associated with LBP recurrence within 1 year.

CONCLUSION

After recovering from a previous episode of acute LBP, 4 in every 10 patients experienced a recurrence within 1 year. This estimate varied depending on the classification used in the SBST. Within 1 year, age, perceived risk of persistent LBP, and baseline disability were predictors of recurrence. J Orthop Sports Phys Ther 2022;52(7):484-492. Epub: 18 May 2022. doi:10.2519/jospt.2022.10775.

Magnetic resonance imaging findings among young adults with low back pain at Nsambya hospital

Background

Studies on MRI findings among patients with LBP have been conducted; especially among adolescents and young adult population in developed countries. However, MRI lumbar spine evaluation findings in young adult patients with low back pain in Uganda is not known. The purpose of this study was to determine the MRI findings and their correlation to clinical features in young adult patients with low back pain in Nsambya hospital.

Methods

This was a descriptive cross sectional study. One hundred and fifty-seven patients with low back pain in the 18–39 year age group underwent MRI lumbar spine evaluation. The MRI changes in the lumbar spine and correlation to clinical features were determined. Correlation was assessed by Pearson chi square tests (Fisher’s exact test) and p values reported at 0.05 level of significance.

Results

Of the 157 patients 129 (82.2%) had severe pain, whereas ninety (57.3%) had pain that had lasted more than 10 weeks. Sixty-five (41.4%) patients were found to have MRI evidence of disc desiccation, majority (61%) of whom had multiple level disease, mostly involving the lowest 2 disc levels. Facet joint arthropathy (47.8%), marginal osteophyte (31.8%) and disc contour irregularity [disc bulge] (31.2%) were other common MRI features seen. There was an association between duration of pain and limb weakness, and development of marginal osteophytes. There was also association between clinical presentation and disc bulge.

Conclusions

The MRI finding of disc degeneration among young adult patients with LBP is higher than reported. Age and pain distribution are predictors of developing disc desiccation.

A biopsychosocial examination of chronic back pain, limitations on usual activities, and treatment in Brazil, 2019

Background

Chronic back pain is prevalent in Brazil, leading to enormous healthcare costs and social burdens. It also disproportionately affects low-income and less-healthy people.

Objectives

This study examines the associations of chronic back pain with biological, psychological, and social factors; how it limits usual activities; and how chronic back pain influences the use of treatment services.

Methods

Using Brazil’s National Health Survey (PNS-2019), multivariate logistic regressions were conducted to examine how biological, psychological, and social factors correlate with chronic back pain, limitations on usual activities, and pain treatment.

Results

PNS-2019 data showed that 23.4% (95% CI 22.8–24.0) of Brazilian adults aged over 20 reported back pain. A higher prevalence of chronic back pain was associated with biological factors (older age, being female, overweight or obese, current smoking, and having more chronic conditions), lower social conditions (low education, low per capita household income, non-married, and living in rural areas), and poor psychological health (more depressive symptoms). Chronic back pain is more likely to limit usual activities among those with low social conditions (lower education, lower income), poor physical and behavioral health (obese, current smokers, and those with a greater number of chronic conditions), and worse psychological health (more depressive symptoms). However, married people and those who do not consume alcohol were also more likely to report limited activities. Among those with back pain, 68% received at least one form of treatment. Those with intense limitations on their usual activities were 2.2 times as likely to report treatment. People with higher social conditions (higher income, college education, and private health insurance) were more likely to receive treatment.

Conclusion

The results show significant biological, psychological, and social disparities in the prevalence of chronic back pain in Brazil. The findings point to the need for tailored policies and prevention programs with attention to vulnerable groups. Even though Brazil has universal health care, those with better socioeconomic conditions are more likely to receive treatment.

Which psychosocial factors are related to severe pain and functional limitation in patients with low back pain?: Psychosocial factors related to severe low back pain

BACKGROUND

Low back pain (LBP) is a global public health issue. Psychosocial factors are linked to LBP. However, there is a lack of knowledge about the relation of psychosocial factors to clinical outcomes of patients with severe LBP.

OBJECTIVE

To investigate the relationship between specific psychosocial factors with severe pain and functional limitation of patients with LBP.

METHODS

A cross-sectional study of 472 participants with LBP was conducted. Participants completed self-reported questionnaires, including psychosocial factors, characteristics of pain, and functional limitations. Two multivariable logistic regression models were performed with severe pain intensity (≥ 7 out of 10) and functional limitation (≥ 7 out of 10) (dependent variables) and 15 psychosocial factors (independent variables).

RESULTS

One hundred twenty-five (26.5%) participants had severe LBP. Patients with catastrophising symptoms were 2.21 [95%Confidence Interval (CI): 1.30, 3.77] times more likely to have severe pain and 2.72 (95%CI: 1.75, 4.23) times more likely to have severe functional limitation than patients without catastrophising symptoms. Patients with maladaptive beliefs about rest were 2.75 (95%CI: 1.37, 5.52) times more likely to present with severe pain and 1.72 (95%CI: 1.04, 2.83) times more likely to have severe functional limitation. Patients with kinesiophobia were 3.34 (95%CI: 1.36, 8.24) times more likely to present with severe pain, and patients with social isolation were 1.98 (95%CI: 1.25, 3.14) times more likely to have severe functional limitation.

CONCLUSION

Catastrophising, kinesiophobia, maladaptive beliefs about rest, and social isolation are related to unfavourable clinical outcomes of patients with LBP.

Management of acute low back pain in emergency departments in São Paulo, Brazil: a descriptive, cross-sectional analysis of baseline data from a prospective cohort study

OBJECTIVE

To describe management strategies used in public emergency departments in a middle-income country for patients with acute non-specific low back pain.

DESIGN

A descriptive, cross-sectional analysis of baseline data from a prospective cohort study.

SETTING AND PARTICIPANTS

A study with 600 patients with low back pain presenting in four public emergency departments from São Paulo, Brazil was conducted.

OUTCOME MEASURES

Diagnostic tests, pharmacological interventions, and/or referral to other healthcare professionals were collected. Descriptive analyses were used to report all outcomes.

RESULTS

Of all patients, 12.5% (n=75) underwent some diagnostic imaging tests. Medication was administered to 94.7% (n=568) of patients. The most common medications were non-steroidal anti-inflammatory drugs (71.3%; n=428), opioids (29%; n=174) and corticosteroids (22.5%; n=135). Only 7.5% (n=45) of patients were referred to another type of care.

CONCLUSION

There is a need for research data on low back pain from middle-income countries. There was an acceptable rate of prescription for diagnostic imaging tests. However, there were high medication prescriptions and small rates of referrals to other healthcare services. Our findings indicate that there is still a need to implement best practices in the management of acute low back pain at public emergency departments in Brazil.

Clinical outcome analysis in surgical patients enrolled in a Second Opinion Program in spine surgery

Objective

To analyze pain, functional capacity, quality of life, anxiety and depression outcomes in patients undergoing lumbar spine surgery following use of the Second Opinion Program, and to present disagreements regarding diagnoses and therapeutic indications between the first and second opinions.

Methods

A prospective, observational cohort study with 100 patients enrolled in the Second Opinion Program who underwent lumbar spine surgery. Questionnaires addressing pain intensity, level of disability, quality of life, anxiety and depression were applied prior to and within 1, 3, 6 and 12 months of surgery. Descriptive and comparative statistical analyses were performed. The following clinical outcomes were analyzed: pain intensity, level of disability, quality of life, anxiety, and depression.

Results

In this sample, 88% and 12% out of 100 patients were submitted to lumbar decompression and arthrodesis, respectively. Patients reported improvements in function, pain intensity, and quality of life factors following surgery and were able to attain the minimal clinically important difference relative to the preoperative period. Agreement between the first and second opinions was observed in 44% of diagnoses, and in 27% of therapeutic indications.

Conclusion

Patients had favorable postoperative outcomes regarding pain, disability, and quality of life. These findings and the high rates of diagnostic and therapeutic indication disagreements corroborate the need of a second opinion in cases of spine disease with surgical indications.

Incidence and factors associated with low back pain in adolescents: A prospective study

BACKGROUND

Low back pain (LBP) is a common complaint among children and adolescents and can negatively impact their physical and mental health. Although previous studies investigating the incidence of low back pain (LBP) in children and adolescents have been performed in high income countries, it is unclear whether countries such as Brazil would show similar incidence rates.

OBJECTIVE

To determine the incidence and to identify predictors of new episodes of LBP in high school students.

METHODS

This is a 1-year longitudinal study of high school students from public schools in the city of Bauru, Sao Paulo. Collected clinical data were: demographic and socioeconomic factors, information on the use of electronic devices, mental health status (the Strengths and Difficulties Questionnaires), level of habitual physical activity (Baecke Physical Activity Questionnaire), and incidence of LBP (measured with question about LBP in the past 12 months and the Nordic Musculoskeletal Questionnaire). Descriptive analysis and bivariate and multivariate logistic regressions were performed.

RESULTS

The cumulative incidence of new LBP episodes for the total cohort of 757 high school students was 18.9% (95% CI: 16.2, 21.8). The cumulative incidence was 14.8% (95% CI: 11.7, 18.5) for male students and 24.1% (95% CI: 19.8, 29.9) for female students. Being a female student (OR = 1.78; 95% CI: 1.23, 2.59), sitting posture while using tablet (OR = 4.34; 95% CI: 1.19, 16.60), daily time spent on tablet (OR = 3.21; 95% CI: 1.41, 7.30), daily time spent on mobile phone (OR =1.49; 95% CI: 1.11, 2.00), lying posture while using mobile phone (OR = 1.49; 95% CI: 1.05, 2.12), and mental health status (OR = 2.81; 95% CI: 1.76, 4.48) were identified as predictor variables.

CONCLUSION

Our findings showed that one in five high school students reported having a LBP episode over the last year. The predictors found to be associated with low back pain include those related to sex, time and posture while using electronic devices, and mental health status.

Low Back Pain in Elderly from Belém-Pa, Brazil: Prevalence and Association with Functional Disability

BACKGROUND

This cross-sectional study aimed to determine the prevalence of low back pain (LBP) in the elderly population living in Belém-Pará and to assess the spectrum of problems related to these diseases including the demographic, socioeconomic, occupational characteristics and disability in this population.

METHODS

Three structured questionnaires were applied in a randomly selected representative sample of 512 elderly people aged ≥60 years.

RESULTS

LBP prevalence in the elderly population was 55.7%. Among then, 56.1% had pain at the time of the interview (punctual prevalence), 91.7% had LBP in the last 365 days (prevalence in the last year), and 85.3% at some point in life (prevalence at some point in life). Overall, most studies are above average. LBP was positively associated with hypertension and the influence of the physical and mental health on their social activities ranged from slightly to extreme. LBP was negatively associated with characteristics, such as education (over 11 years), class A or B income, physical activity, high satisfaction with previous work, and excellent self-perceived health, corroborating to the literature.

CONCLUSIONS

Greater intensity of pain and functional disability were associated with the presence of comorbidities, smoking habits, and low physical activity. LBP prevalence was high, above the national average, mainly affecting the underprivileged classes related to several modifiable factors, highlighting the importance of preventive and interventionist actions for healthy aging.

Factors associated with intensity and frequent low back pain in high school students

Introduction: Low back pain is frequent among schoolchildren and the variables related to high intensity and high back frequency are important predictors for the increase of such complaints in adulthood. Objective: To determine the high intensity and high frequency of low back pain and its associated factors in high school students. Methods: This cross-sectional study included 760 students (319 boys and 441 girls) who reported low back pain. Demographic, socioeconomic, electronic devices, habitual physical activity practice, mental health, and high frequency and high intensity low back pain data were collected. Descriptive analyzes and bivariate and multivariate logistic regressions were used. Results: Of the total number of subjects with low back pain, 14.6% reported high frequency of pain, being 36.9% boys and 63.1% girls, while 42.6% reported high intensity, being 35.8% boys and 47.2% girls. The variables associated with the high frequency of low back pain were altered mental health, posture lying on the use of tablet, time of daily use of the cell phone and distance of the screen to the eyes of the computer user, while the female sex, mental health problem, posture lying on the use of cell phone and the distance of the screen to the eyes of the computer user with severe intensity of low back pain. Conclusion: The demographic factors and related to the use of electronic devices were associated with high intensity and high frequency of low back pain.

Low Back Pain: A Comprehensive Review on the Diagnosis, Treatment Options, and the Role of Other Contributing Factors

BACKGROUND: In recent years, low back pain (LBP) is a growing major health issue around the world and mostly addressed in primary healthcare settings. This may be due to changing work environment including the nature of long sitting work hours, especially in the booming information and technology (IT) and Business Process Outsourcing (BPO) industry. LBP is normally considered as a combination of various types of pain and its related conditions, which eventually lead to disabilities. AIM: In this article, the aim is to discuss the current and future perspectives of LBP mainly on diagnosis and therapeutic front of LBP. METHODS: A search was performed using electronic databases, which include PubMed Central and Google Scholar, using the related key words “back pain and low back pain.” All related peer reviewed published articles were included regardless of the language, region, or the publication date. RESULTS: Although the management of LBP both in terms of diagnosis as well as in the therapeutic options has witnessed considerable progress but challenges are still exist not only within countries but also in the regions and continents among various medical professionals. However, in the past few years, a huge array of coordinated but randomized multi-center clinical studies were performed and various detailed insight investigations have been done, and substantial clinical guidelines have become available. Hence, a new view on evidence-based management approach for LBP has significantly improved recently and discussed here. CONCLUSION: Based on the available evidence and literature, this comprehensive review discusses the present and future perspectives of LBP mainly on diagnosis and therapeutic front for LBP. In addition, current intervention and prevention plans have failed to lessen the considerable burden of LBP and hence several areas which require more details, which deserves additional discussion to augment us through an understanding of this very important topic on improvements of multi tasked outcomes to benefit the affected patients.

Low back pain prevalence in Sao Paulo, Brazil: A cross-sectional study

BACKGROUND

Low back pain (LBP) is the leading cause of disability worldwide, and the burden of LBP is expected to increase in coming decades, particularly in middle-income countries. There is a lack of large and high-quality studies investigating the prevalence of LBP in Brazil.

OBJECTIVE

To estimate the point, one-year, and lifetime prevalence of non-specific LBP in adults from the city of São Paulo, Brazil.

METHODS

This community-based, cross-sectional study recruited 3000 participants in flow point locations randomly selected from census sectors of São Paulo. Interviews and self-administered questionnaires were used to estimate point prevalence, one-year prevalence, and lifetime prevalence of LBP.

RESULTS

The estimate of point prevalence was 9.8% (95% CI: 8.8, 11.0), one-year prevalence was 48.1% (95% CI: 46.3, 49.9), and lifetime prevalence was 62.6% (95% CI: 60.8, 64.3). One-year and lifetime prevalence were higher in females, obese people, people insufficiently active and sedentary, current smokers, people who are exposed to repetitive movements, crouched or kneeling position, people dissatisfied with their job, people a little bit or very stressed, a little bit or very anxious, and a little bit depressed, and people with good and fair or poor general health. Lifetime prevalence was also higher in people exposed to standing positions and exposure to carrying weight.

CONCLUSIONS

The high point, one-year, and lifetime prevalence of LBP in Brazil indicates that there is a need for coordinated efforts from government, the private sector, universities, health workers, and civil society to deliver appropriate management of LBP in middle-income countries.

Myofascial Release for Chronic Low Back Pain: A Systematic Review and Meta-Analysis

Background: Chronic low back pain (CLBP) is one of the most common musculoskeletal diseases in the elderly, which has a severe impact on the health of the elderly. However, CLBP treatment is very challenging, and more effective treatment methods are needed. Myofascial release may be an effective therapy for the management of chronic musculoskeletal pain. It is widely used clinically to treat CLBP, but its clinical efficacy is still controversial. Objective: This study aims to systematically evaluate the effectiveness of myofascial release for patients with CLBP. Methods: We selected PubMed, Cochrane Library, EMBASE database, and Web of Science database articles published until April 5, 2021. Randomized controlled trials (RCTs) of myofascial release for CLBP were included. Outcome measures included pain, physical function, quality of life, balance function, pain pressure-threshold, trunk mobility, and mental health. For each outcome, Standardized mean differences (SMD) or mean differences (MD) and 95% confidence intervals (CIs) were calculated. Results: Eight RCTs (n = 375) were included based on inclusion and exclusion criteria. The meta-analysis showed that the overall efficacy of myofascial release for CLBP was significant, including two aspects: pain [SMD = -0.37, 95% CI (-0.67, -0.08), I 2 = 46%, P = 0.01] and physical function [SMD = -0.43, 95% CI (-0.75, -0.12), I 2 = 44%, P = 0.007]. However, myofascial release did not significantly improve quality of life [SMD = 0.13, 95% CI (-0.38, 0.64), I 2 = 53%, P = 0.62], balance function [SMD = 0.58, 95% CI (-0.49, 1.64), I 2 = 82%, P = 0.29], pain pressure-threshold [SMD = 0.03,95% CI (-0.75, 0.69), I 2 = 73%, P = 0.93], trunk mobility [SMD = 1.02, 95% CI (-0.09, 2.13), I 2 = 92%, P = 0.07] and mental health [SMD = -0.06, 95% CI (-0.83, 0.71), I 2 = 73%, P = 0.88]. Conclusions: In this study, we systematically reviewed and quantified the efficacy of myofascial release in treating CLBP. The meta-analysis results showed that myofascial release significantly improved pain and physical function in patients with CLBP but had no significant effects on balance function, pain pressure-threshold, trunk mobility, mental health, and quality of life. However, due to the low quality and a small number of included literature, more and more rigorously designed RCTs should be included in the future to verify these conclusions.

The challenging scenario of beliefs and attitudes toward chronic low back pain among final year undergraduate students: A cross-sectional investigation

OBJECTIVE

To identify the beliefs and attitudes of students in four health courses about chronic low back pain (CLBP) management, and to investigate personal and undergraduate training-related factors associated with their beliefs.

METHODS

Cross-sectional study conducted with 173 Brazilian medicine, physiotherapy, nursing and pharmacy students. Participants provided information on age, personal experience with LPB, training or class on CLBP management, and contact with patients with CLBP, followed by their first therapeutic choices. HC-PAIRS (0-90) was applied to understand the beliefs and attitudes related to CLBP. We built a One-Way ANOVA with Tukey post hoc tests to compare the results among courses. We built multivariate linear regression models to investigate associated factors with HC-PAIRS score.

RESULTS

Mean HC-PAIRS for all participants was 49.8 (±10.2). Physiotherapy students presented more positive CLBP beliefs compared to medicine, pharmacy and nursing students. Only 41.67% of the responses about the first therapeutic choices were according to the main guidelines of care for CLBP. Total HC-PAIRS score was positive and significantly associated with being a student from medicine, nursing and pharmacy.

CONCLUSION

Physiotherapy students had more positive beliefs about the association between pain and disability in those with CLBP. Still, the beliefs and attitudes of the majority of health students concerning CLBP are not yet in line with the current management framework.

Factors associated with the reporting quality of low back pain systematic review abstracts in physical therapy: a methodological study

BACKGROUND

Abstracts of systematic reviews (SR) are frequently used to guide clinical decision-making. However, if the abstract is inadequately reported, key information may be missing and it may not accurately summarize the results of the review.

OBJECTIVE

We aimed to investigate 1) if abstracts are fully reported; 2) if abstract reporting is associated with review/journal characteristics in physical therapy for low back pain (LBP); and 3) if these abstracts are consistent with the corresponding full texts.

METHODS

We searched the Physiotherapy Evidence Database for SRs in physical therapy for LBP published between 2015 and 2017. Associations between abstract reporting quality and review/journal characteristics were explored with linear regression. Abstract reporting was assessed with the 12 item Preferred Reporting Items for Systematic Reviews and Meta-Analyses for abstracts (PRISMA-A) checklist. Consistency of reporting between abstracts and the full text was evaluated by comparing responses to each item of the PRISMA-A using Kappa coefficients. Methodological quality of the reviews was assessed with A MeaSurement Tool to Assess systematic Reviews (AMSTAR-2).

RESULTS

We included 66 SRs, 9 Cochrane and 57 non-Cochrane. Review methodological quality ranged from 'high' (8%) to 'critically low' (76%). The mean ± SD of the "total number of PRISMA-A fully reported items" (range 0-12 points for fully reported items) was 4.1 ± 1.9 points for non-Cochrane review abstracts and 9.9 ± 1.1 points for Cochrane abstracts. Factors associated with reporting quality of abstracts were: journal impact factor (ß 0.20; 95% CI: 0.06, 0.35), number of words in abstract (ß 0.01; 95% CI: 0.00, 0.01) and review methodological quality ('critically low' with ß -3.06; 95% CI: -5.30, -0.82; with 'high' as reference variable). There was typically inconsistent reporting between abstract and full text, with most Kappa values lower than 0.60.

CONCLUSIONS

The abstracts of SRs in physical therapy for LBP were poorly reported and inconsistent with the full text. The reporting quality of abstracts was higher in journals with a higher impact factor, in abstracts with a greater number of words, and when the review was of higher methodological quality.

Back pain attitudes questionnaire: Cross-cultural adaptation to brazilian-portuguese and measurement properties

BACKGROUND

The Back Pain Attitudes Questionnaire (Back-PAQ) was developed to evaluate attitudes and beliefs of the general public, people with back pain, and healthcare professionals about the spine.

OBJECTIVES

To translate and cross-culturally adapt the Back-PAQ (34-item and 10-item versions) into Brazilian-Portuguese (Back-PAQ-Br) and test its measurement properties in a Brazilian sample.

METHODS

The cross-cultural adaptation and testing of the measurement properties followed the recommendations of international guidelines. Members of the general public, people with back pain, and healthcare professionals, for a total of 139 individuals, took part in the assessment of internal consistency, construct validity, and ceiling and floor effects. The Hospital Anxiety and Depression Scale (HADS) and the Brazilian-Portuguese version of the Tampa Scale of Kinesiophobia (TSK) were used to evaluate construct validity. Test-retest reproducibility was determined on 77 participants. Retest was performed a minimum of 1 week and a maximum of 2 weeks from the original test.

RESULTS

There was very high agreement between translators (88.2%). The Back-PAQ-Br showed excellent internal consistency (Cronbach's alpha 0.92) and excellent reproducibility (ICC 0.94; SEM 5.14 points on a 136 point scale), with a smallest detectable change (90% confidence level) of 11.93 points. There was strong correlation between Back-PAQ-Br and TSK (r = -0.72) and very weak correlation between Back-PAQ-Br and HADS (r = -0.23 for both depression and anxiety domains). No ceiling/floor effects were observed.

CONCLUSION

The translation process and cross-cultural adaptation had very high agreement between translators. The Back-PAQ-Br has excellent measurement properties that are similar to the properties of the original version.

Choosing Wisely Brazil: top 5 low-value practices that should be avoided in musculoskeletal physical therapy

BACKGROUND

The Choosing Wisely initiative aims to promote discussions among healthcare professionals and patients about low-value, or potentially harmful, health practices.

OBJECTIVES

To describe the process of development of the Brazilian Choosing Wisely list for musculoskeletal physical therapy.

METHODS

The Brazilian Choosing Wisely list was developed in accordance with the recommendations of the American Board of Internal Medicine. A three-step procedure was used. First, an expert panel was selected, and a modified Delphi approach was used to obtain a list of evidence-based statements. Second, members of the research team performed content analysis. Third, a national survey was conducted to present selected statements to a sample of physical therapists. Participants were invited to vote considering the level of importance of selected statements for physical therapists and patients.

RESULTS

The expert panel comprised 17 physical therapists. The median age of the expert panel was 33 [interquartile range (IQR) 29 to 37; range 26 to 60] years and the median length of professional experience was 12 (IQR 10 to 18) years. A list of eight recommendations was presented to a national sample composed of 1127 physical therapists. The median length of professional experience of the national sample was 10 (IQR 5 to 15) years. Based on the number of votes, the five most important recommendations were included in the Brazilian Choosing Wisely list for musculoskeletal physical therapy. Descriptive and frequency analysis were used to report the results.

CONCLUSION

The Brazilian Choosing Wisely list for musculoskeletal physical therapy provides an opportunity for physical therapists, patients, society and policy makers to collaboratively discuss tests and treatments that are unnecessary or potentially harmful.

ADAPTATION AND TRANSCULTURAL VALIDATION OF THE BRAZILIAN VERSION OF THE BACK PAIN FUNCTIONAL SCALE

ABSTRACT Objective: The Back Pain Functional Scale (BPFS) was designed to evaluate the functional state of individuals with low back pain. The scale consists of twelve items, covering functional aspects of the daily life activities of these individuals. The final score is calculated by summing the responses to each item, the values of which range from 0 to 5, obtaining a total result of 0 to 60 points. Methods: The validation process was developed in accordance with the World Health Organization (WHO) protocol, covering translation, back translation, semantic equivalence, evaluation by specialists from previous stages, pre-test of the tool, and final version. Subsequently, the final version was applied in a sample of 90 individuals and the data obtained were subjected to descriptive statistical analysis, factorial analysis, evaluation of internal consistency, and correlation with other validated tools. Results: The tool was adapted to Brazilian Portuguese, making use of terms to approximate the language of everyday expressions. The final version presented results similar to those from the original version, as demonstrated by the factorial analysis, the internal consistency (Cronbach's alpha: 0.990), and the strong correlation with tools validated for the Portuguese language. Conclusion: The Brazilian version of BPFS proved to be easy to apply and understand, and presented high internal consistency and construct validity similar to that of the original instrument. Level of evidence 1B; Study of adaptation of a valid score.

Effectiveness of mechanical diagnosis and therapy in patients with non-specific chronic low back pain: a literature review with meta-analysis

OBJECTIVE

To determine the effectiveness of mechanical diagnosis and therapy (MDT) in patients with chronic low back pain (CLBP) compared to other traditional physical therapy interventions.

METHODS

Randomized controlled trials investigating the effect of MDT compared to other traditional physical therapy interventions in individuals with CLBP were considered eligible. For the purpose of this review, MDT was compared to active and passive physical therapy interventions. Independent reviewers assessed the eligibility of studies, extracted data, and assessed the risk of bias. The primary outcomes investigated were pain and disability.

RESULTS

Fourteen studies were included in the review. Of these, 11 provided data to be included in the meta-analyses. Our findings showed that MDT was no more effective in decreasing pain (standardized mean difference [SMD]=0.01, 95% confidence interval [CI]: -0.44, 0.46) and disability (SMD=0.08, 95% CI: -0.53, 0.68) than other active treatments. Similar results were found when comparing MDT to other passive treatments for pain (SMD=-0.39, 95% CI: -0.90, 0.11) and disability (SMD=-0.13, 95% CI: -0.29, 0.03).

CONCLUSION

There is low to moderate quality evidence that MDT is not superior than other traditional physical therapy interventions in improving pain and disability in people with CLBP.

Low back pain presentations to New South Wales emergency departments: Trends over time and geographical variation

OBJECTIVE

To determine whether rates of ED presentations because of low back pain (LBP) have increased from 2016 to 2019 in New South Wales and map the geographical distribution of ED presentations because of LBP across New South Wales.

METHODS

We sourced data from the New South Wales Emergency Department Records for Epidemiology. We included all ED presentations aged 15 years and older with a diagnosis of LBP to the 178 public EDs across New South Wales from 1 January 2016 to 31 December 2019. We calculated the ratio (95% confidence interval) between the 2016 and 2019 age-standardised rates to determine whether an increase in the rate of ED LBP presentations has occurred. To assess geographical variation, we aggregated presentations by their home postcode. We calculated age-standardised rates per 100 000 person year for each of those areas using data from 2016 to 2019.

RESULTS

We included 188 275 LBP presentations for patients aged 15 years or older. Their mean (standard deviation) age was 51.3 (20.0) years. From 2016 to 2019, we observed a 5.3% increase in the age-adjusted LBP ED presentation rates (age-standardised ratio 1.05, 95% confidence interval 1.04-1.06). We found a 20-fold variation in LBP ED age-standardised presentation rates across the different local government areas of New South Wales. Higher rates were mostly observed in rural and regional areas.

CONCLUSIONS

The demand for ED services because of LBP has increased in New South Wales over time, and we observed a 20-fold variation in presentation rates across different regions.

What triggers an episode of acute low back pain? A protocol of a replication case-crossover study

OBJECTIVE

To describe all the procedures of a study that will replicate a previous case-crossover study investigating physical and psychosocial transient exposure risk factors for triggering an episode of acute non-specific low back pain (LBP) at emergency departments in an emerging country.

METHODS

This case-crossover study will recruit 350 patients, aged between 18 and 80 years, with a new episode of acute non-specific LBP seeking care at emergency departments from public hospitals in Brazil. We will collect information about exposure to a range of physical (eg, awkward postures, lifting children or animals, vigorous physical activity) and psychosocial triggers (eg, distraction, tiredness, alcohol consumption) that were examined in the previous study. The exposure to each trigger during the 2 hours preceding the onset of LBP (case window) will be compared with exposure in the 2-hour periods ending 24 (24-26 hours) and 48 (48-50 hours) hours before the onset of back pain (control window). Conditional logistic regression models will be built to estimate ORs expressing the magnitude of increased risk of developing LBP associated with each factor.

DISCUSSION

This study will enable the confirmation of previous findings regarding transient exposure to factors that increase risk for an episode of acute LBP in a different setting (at emergency departments of an emerging country). To minimise the potential for recall bias, the maximum time between episode onset and interview will be 7 days; we will encourage participants to use their smartphones and diaries to remember the investigated period. Also, our interview script asked participants to nominate the key aspects of each day. Despite these efforts, the retrospective study design means it is not possible to completely exclude potential for recall bias. Furthermore, participants will be blinded to the case and control periods.

ETHICS AND DISSEMINATION

Ethics were granted by the Research Ethics Committee (#20310219.8.0000.0064). Study findings will be disseminated through publications and conference presentations.

Assessing health empowerment - Brazilian cross-cultural adaptation and validity testing of the health education impact questionnaire (heiQ) among people with chronic low back pain

BACKGROUND

There is no patient reported outcome measure available in Brazilian Portuguese to comprehensively assess outcomes following administration of patient education programs for people with chronic conditions.

OBJECTIVE

To describe the cross-cultural adaptation and measurement properties of the Brazilian Portuguese version of the Health Education Impact Questionnaire (heiQ), a multidimensional questionnaire designed for the evaluation of patient education programs, which was tested in people with chronic low back pain (LBP).

METHODS

One hundred thirty-seven individuals with non-specific chronic LBP (age: 38.7 ± 13.2) were enrolled in the study. The translation was performed according to international standards. Intraclass correlation coefficient (ICC) was used to assess test-retest reliability, Cronbach's α to assess internal consistency, Pearson rank correlation to compare the heiQ scales with comparator scales, and confirmatory factor analysis (CFA) for structural validity.

RESULTS

The test-retest analysis yielded ICC values ranging from 0.75 to 0.91. Cronbach's alphas for the seven scales ranged from 0.70 to 0.89. Significant correlations between affective and general health constructs and the heiQ scales (72%) were observed. For the majority of the scales, the CFA fit statistics showed to be good to excellent.

CONCLUSION

Overall, the Brazilian Portuguese version of the heiQ showed acceptable reliability, internal consistency, construct validity, and structural validity in individuals with chronic LBP. The heiQ scales may serve as direct outcomes to assess education and self-management programs for the Brazilian Portuguese speaker population.

The impact of low back pain systematic reviews and clinical practice guidelines measured by the Altmetric score: Cross-Sectional study

BACKGROUND

Although Altmetric has been widely used by researchers to monitor the audience of their articles, there are no studies that have analysed factors associated with Altmetric score for systematic reviews and clinical practice guidelines.

OBJECTIVES

1) To analyse factors that could be associated with Altmetric scores for low back pain systematic reviews and clinical practice guidelines. 2) To describe the characteristics of these articles and their Altmetric scores.

METHODS

We searched for all low back pain systematic reviews and guidelines indexed on the Physiotherapy Evidence Database published between 2015 and 2017. We extracted data related to the published paper, the publishing journal, and Altmetric scores.

RESULTS

A total of 66 systematic reviews and 5 guidelines were included. The variable impact factor (independent variable) was associated with Altmetric mentioned score (dependent variable) with a β coefficient of 15.4 (95% CI: 0.97, 29.7) ajusted to all remaining variables. The variable number of citations normalized by year of publication (independent variable) was associated with Altmetric reader score (dependent variable) with a β coefficient of 6.4 (95% CI: 4.03, 8.72) ajusted to all remaining variables. We also found that the majority of the systematic reviews and guidelines were published in English, had a descriptive title, were published as open access, included multicenter studies, and had media release generated by the publishing journal.

CONCLUSION

Metrics related to the number of citations, such as the impact factor are associated with Altmetric scores.

Transcutaneous electrical nerve stimulation and heat to reduce pain in a chronic low back pain population: a randomized controlled clinical trial

BACKGROUND

Low back pain is the leading cause of disability worldwide. The therapeutic management of patients with chronic LBP is challenging.

OBJECTIVES

The aim of this study is to evaluate the effects of heat and transcutaneous electrical nerve stimulation combined on pain relief in participants with chronic low back pain.

METHODS

Fifty participants with chronic (≥3 months) low back pain were randomly assigned to two groups: HeatTens (n=25) and control group (n=25). Primary outcome was pain. Secondary outcomes were pressure pain thresholds, temporal summation, conditioned pain modulation, fear-avoidance and beliefs questionnaire, central sensitization inventory, quality of life, and medication use. The control group received no treatment and continued usual care. After four weeks of treatment, all measurements were repeated.

RESULTS

Fifty individuals participated in this study. Significant higher pressure pain threshold measures after both 30min and 4 weeks for the lower back region and the second plantar toe were found only in the experimental group.

CONCLUSION

The combination of heat and transcutaneous electrical nerve stimulation does not reduce pain scores in patients with chronic low back pain. Pressure pain threshold values significantly improved, showing beneficial effects of the experimental treatment. ClinicalTrials.gov: NCT03643731 (https://clinicaltrials.gov/ct2/show/NCT03643731).

Profile and management of patients with low back pain complaints in a Brazilian Emergency Department: a cross-sectional retrospective study

Objective: To describe the demographic profile and the management of patients with low back pain (LBP) complaints presenting to the Emergency Department (ED) of a Brazilian public hospital. Methods: Retrospective, cross-sectional study using a convenience sample of patients with LBP triaged at the studied ED through the Manchester Triage System along a year. Data were extracted from electronic medical records. LBP presentations were classified as non-traumatic, traumatic, and non-spinal related pain according to the signs and symptoms reported. Data included patients’ demographic profile, pain severity and management (e.g., imaging exams, medication prescription and hospitalization). Results: Data from 2016 patients was analyzed. Most were middle-aged adults (mean age = 40.5years, SD 15.7), female (n = 1043, 51.7%) and presented moderate pain intensity (score range 4 to 7 on the Visual Analogue Scale, n=1,471; 74.1%). Non-traumatic pain (n = 1,016; 50.4%) was the main cause of care-seeking. A total of 36.9% (n = 743) underwent imaging exams and 42.2% (n = 850) received medication. Patients with non-spinal related pain were three times more likely to receive opioid medication (OR = 2.96; 95%CI 2.30 to 3.79). Conclusion: Non-traumatic LBP (i.e., no history of trauma or red flags) was the main cause of LBP care-seeking in a Brazilian ED. Most patients were treated conservatively and without hospitalization. Opioids prescription and imaging exams, although performed on a smaller scale, were still used for of the management of this type of LBP.

A look into the challenges and complexities of managing low back pain in Mexico

Low back pain is a global health problem. In Mexico it is one of the most common musculoskeletal conditions as well as the leading cause of disability. This review provides an overview of the challenges and complexities of managing low back pain in Mexico. It begins with an explanation of the Mexican healthcare system and an overview of the burden of low back pain. Usual care for low back pain in Mexico is then contrasted with recommended best practice care to highlight common evidence-practice gaps and drivers of poor care. Finally, solutions are proposed based on positive experiences from other countries. Delving into the Mexican health framework and the burden of low back pain will provide a better understanding of why it is important to pay attention to this musculoskeletal disorder. Potential steps required to reduce the burden are also outlined to benefit not only the people suffering from low back pain but also the Mexican economy and society.

Use of the STarT Back Screening Tool in patients with chronic low back pain receiving physical therapy interventions

BACKGROUND

The STarT Back Screening Tool (SBST) is used to stratify care. It is unclear if the SBST approach works as well for patients in low- and medium-income countries as for patients from high-income countries.

OBJECTIVES

(1) To investigate whether patients with chronic low back pain (LBP) stratified by the SBST are different at baseline; (2) to describe the clinical course for each SBST subgroup; (3) to investigate the SBST utility to predict clinical outcomes; and (4) to determine which SBST subgroup show greater clinical improvement.

DESIGN

This is a secondary analysis of data derived from a previously published clinical trial.

METHODS

148 patients with chronic nonspecific LBP were included. Pain intensity, disability, global perceived effect, and the SBST were assessed at baseline and at 5, 12, and 24 weeks after baseline. Descriptive data were provided and ANOVA, unadjusted and adjusted regression models, and linear mixed models were used for data analysis.

RESULTS

Duration of symptoms, use of medication, pain, disability, and global perceived effect were different between SBST subgroups. Clinical improvements over a 6-month period were consistently greater in patients classified as high risk. The SBST was able to predict disability but this predictability decreased when the analysis was adjusted for possible confounders.

CONCLUSION

Clinical outcomes were different between SBST subgroups over 6 months. Adjusting for confounders influenced the predictability of SBST. Patients classified as high risk presented higher improvements in terms of disability.

Directed vertebral manipulation is not better than generic vertebral manipulation in patients with chronic low back pain: a randomised trial

QUESTION

In people with chronic low back pain, what is the average effect of directing manipulation at the most painful lumbar level compared with generic manipulation of the spine?

DESIGN

Randomised controlled trial with concealed allocation, a blinded assessor and intention-to-treat analysis.

PARTICIPANTS

148 people with non-specific chronic low back pain with a minimum level of pain intensity of 3 points (measured from 0 to 10 on the Pain Numerical Rating Scale).

INTERVENTIONS

All participants received 10 spinal manipulation sessions over a 4-week period. The experimental group received treatment to the most painful segment of the lower back. The control group received treatment to the thoracic spine.

OUTCOME MEASURES

The primary outcome was pain intensity, measured at the end of the intervention (Week 4). Secondary outcomes were: pain intensity at Weeks 12 and 26; pressure pain threshold at Week 4; and global perceived change since onset and disability, both measured at Weeks 4, 12 and 26.

RESULTS

Each group was randomly allocated 74 participants. Data were collected at all time points for 71 participants (96%) in the experimental group and 72 (97%) in the control group. There were no clinically important between-group differences for pain intensity, disability or global perceived effect at any time point. The estimate of the effect of directing manipulation at the most painful lumbar level, as compared with generic manipulation, on pain intensity was too small to be considered clinically important: MD 0 (95% CI -0.9 to 0.9) at Week 4 and -0.1 (95% CI -1.0 to 0.8) at Week 26.

CONCLUSION

No clinically important differences were observed between directed manipulation and generic manipulation in people with chronic low back pain.

TRIAL REGISTRATION

NCT02883634.

TOPS - a randomized controlled trial of exercise and education to prevent recurrence of low back pain: statistical analysis plan

BACKGROUND

This a priori statistical analysis plan describes the methods of analysis for the Trial Of Prevention Strategies for low back pain (TOPS).

OBJECTIVES

TOPS aimed to investigate the effectiveness and cost-effectiveness of exercise and education classes compared with a minimal intervention control in preventing recurrence of low back pain (LBP) in people who have recently recovered from an episode of LBP.

METHODS

TOPS is a superiority, pragmatic, parallel-group randomized controlled trial with allocation concealment, blinded outcome assessors, and intention-to-treat analysis. Participants were randomized to a physical therapist-led exercise and education program for 12 weeks or minimal intervention. The primary outcome was days to recurrence of an episode of LBP. The three key secondary outcomes were days to recurrence of an episode of LBP resulting in (1) activity limitation, (2) care seeking for LBP; and (3) work absence of at least 1 day. Differences in survival curves for the primary (days to recurrence) and secondary outcome (days to LBP with activity limitation, days to care seeking due to LBP, and days to work absence due to LBP) will be compared using Cox regression. Hazard ratios (HRs) and median survival times with 95% confidence intervals (CI) will be calculated. The number of adverse events, including serious adverse events will be reported and the proportion of adverse events between groups will be compared using a Chi-squared test.

DISCUSSION

This paper will provide a detailed description of the planned analyses for the TOPS trial.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry (ACTRN12615000939594).

Profile of Patients With Acute Low Back Pain Who Sought Emergency Departments: A Cross-sectional Study

STUDY DESIGN

A cross-sectional study.

OBJECTIVE

The aim of this study is to describe the profile of patients with acute low back pain (LBP) who sought emergency departments (EDs) in Brazilian public hospitals. We also described the profile of these patients according to the STarT Back Screening Tool (SBST).

SUMMARY OF BACKGROUND DATA

LBP is the most common musculoskeletal condition worldwide and is one of the main complaints in EDs. There is a lack of evidence describing the profile of these patients from low- to middle-income countries.

METHODS

This is a cross-sectional study involving patients with a new episode of nonspecific acute LBP that was conducted between August 2014 and August 2016. Variables related to clinical, psychological, sociodemographic and work status characteristics were investigated through structured, in-person oral questionnaire.

RESULTS

A total of 600 patients were included in the study. The majority of the patients were women (58%), with a median of eight points on pain intensity (measured on an 11-point scale) and 17 points on disability (measured on a 24-item questionnaire). With regards to the SBST evaluation, 295 (49.2%) patients were classified as being at high risk of developing an unfavorable prognosis with a median pain intensity of nine points on pain intensity, 20 points on disability, and seven points on depression (measured on an 11-point scale). Despite this, the majority of the patients (74%) continued working normally without interference from LBP.

CONCLUSION

Identifying the profile of patients seeking care in EDs can help to define effective management for LBP in low- and middle-income countries. Patients with nonspecific acute LBP who seek EDs in Brazil present high levels of pain intensity and disability. Most patients were classified as having a high risk of developing an unfavorable prognosis.

LEVEL OF EVIDENCE

2.

Psychometric properties of the Brazilian version of the Bournemouth questionnaire for low back pain: validity and reliability

OBJECTIVES

The Bournemouth Questionnaire is a comprehensive and short form multidimensional instrument developed to evaluate the health status of individuals with low back pain. The objective of this study was to verify the construct validity and the test-retest reliability of the Brazilian version of Bournemouth Questionnaire in individuals with low back pain.

METHODS

This is a methodological study that included 65 patients with low back pain. The Brazilian Bournemouth Questionnaire was applied twice, and the test-retest reliability was assessed using intraclass correlation coefficient (ICC), standard error of measurement (SEM), minimum detectable change (MDC), and internal consistency. The construct validity of the Brazilian Bournemouth Questionnaire was assessed using the numeric pain rating scale (NPRS) and also with the following questionnaires: Roland-Morris Questionnaire (RMDQ), Oswestry Disability Index (ODI), and the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36).

RESULTS

The total score of the Brazilian Bournemouth Questionnaire showed ICC of 0.82 (95% CI: 0.72, 0.90), Cronbach´s alpha of 0.85, SEM of 5.97, and MDC of 15.54, without evidence of ceiling and floor effects. The total score of the Brazilian Bournemouth Questionnaire was correlated to the NPRS for current (r = 0.64), highest (r = 0.49), and lowest (r = 0.67) pain as well as scores on the RMDQ (r = 0.58), ODI (r = 0.42), and SF-36 (r = -0.58).

CONCLUSION

The total score of the Brazilian version of the Bournemouth Questionnaire is valid and reliable to be used with patients with low back pain.

Can Kinesio Taping® influence the electromyographic signal intensity of trunk extensor muscles in patients with chronic low back pain? A randomized controlled trial

BACKGROUND

The evidence of the influence of Kinesio Taping® in changing electromyographic signal intensity of the lumbar musculature in patients with chronic non-specific low back pain (LBP) is very sparse.

OBJECTIVES

To evaluate if Kinesio Taping® changes the electromyographic signal intensity of the longissimus and iliocostalis muscles in patients with chronic non-specific LBP.

METHODS

Prospectively registered, three-arm randomized controlled trial with a blinded assessor. Patients were randomly allocated to the following interventions: 1) Kinesio Taping® Group (n=21), where patients received the tape according to the manufacturer's manual; 2) Placebo Group (i.e. normal surgical tape) (n=21); and 3) Non-treatment control Group (n=21). Assessments were performed at baseline, immediately after, and 30min after the intervention. The primary outcome was muscle activity of the iliocostalis and longissimus muscles as measured by surface electromyography. The secondary outcome was pain intensity (measured with a 0-10 Numerical Rating Scale). The effects of treatment were calculated using linear mixed models.

RESULTS

A total of 63 patients were recruited. Follow up rate was high (98.4%). Patients were mostly women with moderate levels of pain and disability. Kinesio Taping® was better than the control and placebo groups in only 4 of 96 statistical comparisons, likely reflective of type I error due to multiple comparisons. No statistically significant differences were identified for the immediate reduction in pain intensity between groups.

CONCLUSION

Kinesio Taping® did not change the electromyographic signal intensity of the longissimus and iliocostalis muscles or reduce pain intensity in patients with chronic low back pain. Clinicaltrials.gov: NCT02759757 (https://clinicaltrials.gov/ct2/show/NCT02759757).

Chronic pain is associated with increased health care use among community-dwelling older adults in Brazil: the Pain in the Elderly (PAINEL) Study

BACKGROUND

Chronic pain is known to increase health care use in high-income countries, but in Brazil, little is known.

OBJECTIVE

To investigate the association between chronic pain and health care use among Brazilian older adults and explore the relationship between pain severity and health care use.

METHODS

This cross-sectional study was derived from the population-based study Frailty in Brazilian Older People-FIBRA. Chronic pain, pain intensity and pain-related disability were assessed through additional telephone interviews. Health care use was measured by the number of doctor visits, hospitalization events and high health care use (highest quartile of the distribution for number of doctor visits) in the last 12 months. Associations were tested in regression analyses adjusted for predisposing, enabling and illness-level components from the Andersen Model.

RESULTS

The 383 participants were predominantly female (71.0%), mean age was 75.6 (6.1 SD). The prevalence of chronic pain was 30.0%. Chronic pain was associated with number of doctor visits [unstandardized B coefficient 1.48; 95% confidence interval (CI) = 0.35-2.62] and high health care use [odds ratios (OR) = 2.27; 95% CI = 1.39-3.72]. Pain intensity was associated with high health care use in univariate (OR = 1.13; 95% CI = 1.06-1.20) but not multivariate analysis (OR = 1.12; 95% CI = 0.94-1.33). Pain-related disability was not associated with any outcome.

CONCLUSION

Chronic pain increased health care use among Brazilian older adults. Improving the quality of primary care management of individuals at greater risk of chronic pain should be a cornerstone of health policies directed towards reducing the personal and societal burden of ageing.

A Responsiveness Analysis of the Subgroups for Targeted Treatment (STarT) Back Screening Tool in Patients With Nonspecific Low Back Pain

BACKGROUND

The Subgroups for Targeted Treatment (STarT) Back Screening Tool (SBST) screens patients with low back pain and directs them to different levels of physical therapy treatment. The SBST is also used to monitor changes in a range of modifiable prognostic factors. However, the current evidence on the responsiveness of the SBST is limited.

OBJECTIVES

To test the responsiveness of the SBST at 6 weeks and 6 months.

METHODS

This measurement property study is a secondary analysis of data from 2 previous studies that included 348 participants with nonspecific low back pain. All participants were assessed at baseline, 6 weeks, and 6 months. To detect clinical changes, the SBST was compared to 3 one-dimensional constructs: global perceived effect, disability, and pain intensity. To assess responsiveness, we tested 15 specific predefined hypotheses based on correlation, effect size, and receiver operating characteristic curve analyses. If 75% or more of the hypotheses were accepted, then responsiveness was considered to be high.

RESULTS

Most of the hypotheses were accepted. Testing the SBST as a continuous score, 85.7% and 87.5% of the hypotheses were accepted at 6 weeks and 6 months, respectively. For medium- and high-risk subgroups, 85.7% and 87.5% of the hypotheses were accepted at 6 weeks and 6 months. The low-risk subgroup had 42.9% of the hypotheses accepted at 6 weeks and 100% of the hypotheses accepted at 6 months.

CONCLUSION

The SBST had high responsiveness at 6 weeks in subgroups of patients with a medium and high risk, and poor responsiveness in those with a low risk, of persistent disability. The SBST has high responsiveness in all SBST subgroups at 6 months. Clinicians can confidently use the SBST to measure changes over time in terms of subgroups.

LEVEL OF EVIDENCE

Longitudinal clinical measurement, level 1b. J Orthop Sports Phys Ther 2019;49(10):725-735. Epub 23 Aug 2019. doi:10.2519/jospt.2019.8776.

The contemporary management of nonspecific lower back pain

Low back pain (LBP) is extremely common and causes an enormous burden on the society. This perspective article aims to provide an evidence-based summary in the field of LBP. More specifically, we aimed to present epidemiological data on cost, diagnosis, prognosis, prevention and interventions for patients with LBP. It is critical that both clinicians and policymakers follow best practices by using high-value care for patients with LBP. In addition, nonevidence-based procedures must be immediately abandoned. These actions are likely to reduce societal costs and will improve the quality of life of these patients.

Overall confidence in the results of systematic reviews on exercise therapy for chronic low back pain: a cross-sectional analysis using the Assessing the Methodological Quality of Systematic Reviews (AMSTAR) 2 tool

OBJECTIVE

To evaluate the overall confidence in the results of systematic reviews of exercise therapy for chronic non-specific low back pain using the AMSTAR 2 tool.

METHODS

PubMed, Embase, Cochrane Database of Systematic Reviews, PEDro and CINAHL was searched up to February 2017. Two independent reviewers selected systematic reviews of randomized controlled trials that investigated exercise therapy in patients with low back pain. AMSTAR 2 assessment was performed by pairs of reviewers, and the overall confidence in the results of the systematic reviews were rated as 'High', 'Moderate', 'Low' and 'Critically low'. Descriptive analysis was used to summarize the characteristics of included systematic reviews. The percentage of systematic reviews achieving each item from the AMSTAR 2 and the overall confidence in the results were tabulated.

RESULTS

The search identified 38 systematic reviews. Most of the reviews included a median of 10 clinical trials and total sample size of 813 participants per review. Five of 38 (13%) reviews were Cochrane reviews, and 8 (21%) systematic reviews had a protocol published or registered prospectively. The overall confidence in the results of 28 reviews (74%) was rated as 'Critically low', 6 (16%) as 'Low', 1 (2%) as Moderate, while 3 of 38 reviews (8%) were rated as 'High'.

CONCLUSION

The results demonstrate very low confidence in the results of most systematic reviews of exercise in chronic non-specific low back pain. Clinicians are more likely to deliver the most efficacious interventions to patients by critically appraising systematic reviews using AMSTAR 2 before making their decisions.