Effectiveness of interventions designed to reduce the use of imaging for low-back pain: a systematic review

Assessing MRI referrals' appropriateness for low back pain post a radiology-initiated intervention

INTRODUCTION

This study evaluated a pilot intervention to reduce low-value Magnetic Resonance Imaging (MRI) referrals for Low Back Pain (LBP).

METHODS

This before-after intervention study analysed MRI referrals for LBP at two private imaging centres in Norway. MRI referrals for LBP obtained before and after an intervention of information campaigns and sending a return letter to clinicians for declined referrals were evaluated on information, quality, and justification rates. Four radiologists and two radiographers assessed the referrals. A point system was used to calculate referral quality. Each referral was given a score 'good' when rated above 5.5 and 'poor' below 2.5. Justification was based on assessors categorised rating as justified, unjustified or need more information. Stata Statistical Software (Release 18) was used for analysis. A mixed model analysed variations of the referrals pre- and post-intervention. A p-value of <.05 in variations was considered statistically significant.

RESULTS

A total n = 300 patients' referrals (150 referrals pre- and post-intervention) were collected and assessed. Post-intervention, 68% of referrals were justified, up from 63% pre-intervention. The assessment showed a 4% decrease in referrals with poor scores and a 2% increase in those rated as good or intermediate quality post-intervention. These changes were not statistically significant.

CONCLUSION

It is important to state that it was not possible in our study to identify the subgroup of referrals that are known to be from clinicians who had received a return letter, although the information campaign targeted all referrers. Despite the limitations our findings suggest that providing reasons for declined referrals can serve as an educational tool for clinicians and contribute to the reduction of low value MRI for LBP.

IMPLICATIONS FOR PRACTICE

Radiology department initiatives that raise awareness and offer referral criteria guidance to clinicians can serve as valuable educational tools, and further emphasize the importance of providing comprehensive information in MRI referrals for LBP.

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.

Behavioural 'nudging' interventions to reduce low-value care for low back pain in the emergency department (NUDG-ED): protocol for a 2×2 factorial, before-after, cluster randomised trial

INTRODUCTION

Opioids and imaging are considered low-value care for most people with low back pain. Yet around one in three people presenting to the emergency department (ED) will receive imaging, and two in three will receive an opioid. NUDG-ED aims to determine the effectiveness of two different behavioural 'nudge' interventions on low-value care for ED patients with low back pain.

METHODS AND ANALYSIS

NUDG-ED is a 2×2 factorial, open-label, before-after, cluster randomised controlled trial. The trial includes 8 ED sites in Sydney, Australia. Participants will be ED clinicians who manage back pain, and patients who are 18 years or over presenting to ED with musculoskeletal back pain. EDs will be randomly assigned to receive (i) patient nudges, (ii) clinician nudges, (iii) both interventions or (iv) no nudge control. The primary outcome will be the proportion of encounters in ED for musculoskeletal back pain where a person received a non-indicated lumbar imaging test, an opioid at discharge or both. We will require 2416 encounters over a 9-month study period (3-month before period and 6-month after period) to detect an absolute difference of 10% in use of low-value care due to either nudge, with 80% power, alpha set at 0.05 and assuming an intra-class correlation coefficient of 0.10, and an intraperiod correlation of 0.09. Patient-reported outcome measures will be collected in a subsample of patients (n≥456) 1 week after their initial ED visit. To estimate effects, we will use a multilevel regression model, with a random effect for cluster and patient, a fixed effect indicating the group assignment of each cluster and a fixed effect of time.

ETHICS AND DISSEMINATION

This study has ethical approval from Southwestern Sydney Local Health District Human Research Ethics Committee (2023/ETH00472). We will disseminate the results of this trial via media, presenting at conferences and scientific publications.

TRIAL REGISTRATION NUMBER

ACTRN12623001000695.

'It depends': what 86 systematic reviews tell us about what strategies to use to support the use of research in clinical practice

BACKGROUND

The gap between research findings and clinical practice is well documented and a range of strategies have been developed to support the implementation of research into clinical practice. The objective of this study was to update and extend two previous reviews of systematic reviews of strategies designed to implement research evidence into clinical practice.

METHODS

We developed a comprehensive systematic literature search strategy based on the terms used in the previous reviews to identify studies that looked explicitly at interventions designed to turn research evidence into practice. The search was performed in June 2022 in four electronic databases: Medline, Embase, Cochrane and Epistemonikos. We searched from January 2010 up to June 2022 and applied no language restrictions. Two independent reviewers appraised the quality of included studies using a quality assessment checklist. To reduce the risk of bias, papers were excluded following discussion between all members of the team. Data were synthesised using descriptive and narrative techniques to identify themes and patterns linked to intervention strategies, targeted behaviours, study settings and study outcomes.

RESULTS

We identified 32 reviews conducted between 2010 and 2022. The reviews are mainly of multi-faceted interventions (n = 20) although there are reviews focusing on single strategies (ICT, educational, reminders, local opinion leaders, audit and feedback, social media and toolkits). The majority of reviews report strategies achieving small impacts (normally on processes of care). There is much less evidence that these strategies have shifted patient outcomes. Furthermore, a lot of nuance lies behind these headline findings, and this is increasingly commented upon in the reviews themselves.

DISCUSSION

Combined with the two previous reviews, 86 systematic reviews of strategies to increase the implementation of research into clinical practice have been identified. We need to shift the emphasis away from isolating individual and multi-faceted interventions to better understanding and building more situated, relational and organisational capability to support the use of research in clinical practice. This will involve drawing on a wider range of research perspectives (including social science) in primary studies and diversifying the types of synthesis undertaken to include approaches such as realist synthesis which facilitate exploration of the context in which strategies are employed.

Imaging Wisely Campaign: Initiative to Reduce Imaging for Low Back Pain Across a Large Safety Net System

OBJECTIVES

Low back pain is a common clinical presentation that often results in expensive and unnecessary imaging that may lead to undue patient harm, including unnecessary procedures. We present an initiative in a safety net system to reduce imaging for low back pain.

METHODS

This quality improvement study was conducted across 70 ambulatory clinics and 11 teaching hospitals. Three electronic health record changes, using the concept of a nudge, were introduced into orders for lumbar radiography (x-ray), lumbar CT, and lumbar MRI. The primary outcome was the number of orders per 1,000 patient-days or encounters for each imaging test in the inpatient, ambulatory, and emergency department (ED) settings. Variation across facilities was assessed, along with selected indications.

RESULTS

Across all clinical environments, there were statistically significant decreases in level differences pre- and postintervention for lumbar x-ray (-52.9% for inpatient encounters, P < .001; -23.7% for ambulatory encounters, P < .001; and -17.3% for ED only encounters, P < .01). There was no decrease in ordering of lumbar CTs in the inpatient and ambulatory settings, although there was an increase in lumbar CTs in ED-only encounters. There was no difference in lumbar MRI ordering. Variation was seen across all hospitals and clinics.

DISCUSSION

Our intervention successfully decreased lumbar radiography across all clinical settings, with a reduction in lumbar CTs in the inpatient and ambulatory settings. There were no changes for lumbar MRI orders.

CHIME-GP trial of online education for prescribing, pathology and imaging ordering in general practice - how did it bring about behaviour change?

BACKGROUND

There is a need for scalable clinician education in rational medication prescribing and rational ordering of pathology and imaging to help improve patient safety and enable more efficient utilisation of healthcare resources. Our wider study evaluated the effectiveness of a multifaceted education intervention for general practitioners (GPs) in rational prescribing and ordering of pathology and imaging tests, in the context of Australia's online patient-controlled health record system, My Health Record (MHR), and found evidence for measurable behaviour change in pathology ordering among participants who completed the educational activities. This current study explored the mechanisms of behaviour change brought about by the intervention, with a view to informing the development of similar interventions in the future.

METHODS

This mixed methods investigation used self-reported questionnaires at baseline and post-education on MHR use and rational prescribing and test ordering. These were analysed using multi-level ordinal logistic regression models. Semi-structured interviews pre- and post-intervention were also conducted and were analysed thematically using the COM-B framework.

RESULTS

Of the 106 GPs recruited into the study, 60 completed baseline and 37 completed post-education questionnaires. Nineteen participants were interviewed at baseline and completion. Analysis of questionnaires demonstrated a significant increase in confidence using MHR and in self-reported frequency of MHR use, post-education compared with baseline. There were also similar improvements in confidence across the cohort pre-post education in deprescribing, frequency of review of pathology ordering regimens and evidence-based imaging. The qualitative findings showed an increase in GPs' perceived capability with, and the use of MHR, at post-education compared with baseline. Participants saw the education as an opportunity for learning, for reinforcing what they already knew, and for motivating change of behaviour in increasing their utilisation of MHR, and ordering fewer unnecessary tests and prescriptions.

CONCLUSIONS

Our education intervention appeared to provide its effects through providing opportunity, increasing capability and enhancing motivation to increase MHR knowledge and usage, as well as rational prescribing and test ordering behaviour. There were overlapping effects of skills acquisition and confidence across intervention arms, which may have contributed to wider changes in behaviour than the specific topic area addressed in the education.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry (ACTRN12620000010998) (09/01/2020).

Randomised trial of general practitioner online education for prescribing and test ordering

INTRODUCTION

Potentially inappropriate medicine prescriptions and low-value diagnostic testing pose risks to patient safety and increases in health system costs. The aim of the Clinical and Healthcare Improvement through My Health Record usage and Education in General Practice study was to evaluate a scalable online quality improvement intervention, integrating online education regarding a national shared electronic health record and rational prescribing, pathology and imaging ordering by Australian general practitioners (GPs).

METHODS

The study was a parallel three-arm randomised trial comprising a prescribing education arm, a pathology education arm and an imaging education arm. Currently practising GPs in Australia were eligible to participate and randomised on a 1:1:1 basis to the study arms after consenting. The response to the intervention in reducing potentially unnecessary medicine prescriptions and tests in each arm was assessed using the other two arms as controls. The primary outcome was the cost per 100 consultations of predefined medication prescriptions, pathology and radiology test ordering 6 months following the intervention, compared with 6 months prior. Outcomes were assessed on intention-to-treat and post hoc per-protocol bases using multilevel regression models, with the analysts blinded to allocation.

RESULTS

In total, 106 GPs were enrolled and randomised (prescribing n=35, pathology n=36, imaging n=35). Data were available for 97 GPs at the end of trial (prescribing n=33, pathology n=32, imaging n=32) with 44 fully completing the intervention. In intention-to-treat analysis, there were no significant differences in the rates of change in costs across the three arms. Per protocol, there was a statistically significant difference in the rate of change in pathology costs (p=0.03). In the pathology arm, the rate of increase in pathology costs was significantly lower by $A187 (95% CI -$A340, -$A33) than the prescribing arm, and non-significantly $A9 (95% CI -$A128, $A110) lower than the imaging arm.

DISCUSSION

This study provides some evidence for reductions in costs for low-value pathology test ordering in those that completed the relevant online education. The study experienced slow uptake and low completion of the education intervention during the COVID-19 pandemic. Changes were not significant for the primary endpoint, which included all participants. Improving completion rates and combining real-time feedback on prescribing or test ordering may increase the overall effectiveness of the intervention. Given the purely online delivery of the education, there is scope for upscaling the intervention, which may provide cost-effectiveness benefits.

TRIAL REGISTRATION NUMBER

ACTRN12620000010998.

"You're stuck in the middle here": a qualitative study of GPs' experiences of managing knee pain attributed to a degenerative meniscal tear

BACKGROUND

Exercise is the recommended first-line therapy for a degenerative meniscal tear (DMT). Despite this, knee pain attributed to DMTs are a common presentation to specialist orthopaedic clinics. In the primary care setting, the general practitioner (GP) plays a central role in managing patients with knee pain, but to date their perspective has not been explored in relation to DMTs. This study explored GPs' experiences of managing people with knee pain attributed to a DMT.

METHODS

A qualitative research design was adopted and practices in the South and Mid-West of Ireland were contacted via recruitment emails circulated through professional and research networks. Interested GPs contacted the researchers via email, and purposive and snowball sampling was used for recruitment. Semi-structured interviews were conducted online or over the telephone. Interviews were digitally recorded and transcribed. Data was analysed using an inductive approach to thematic analysis. Ethical approval was granted by the Irish College of General Practitioners (ICGP_REC_21_0031).

RESULTS

Seventeen semi-structured one-on-one interviews were conducted. Three main themes were identified with related subthemes: (1) GPs' experiences of relational aspects of care, (2) GP beliefs about what constitutes best care for patients with a DMT, and (3) how GP practice is enacted within the current healthcare setting. GPs described the challenge of maintaining a strong clinical alliance, while managing perceived patient expectations of a 'quick fix' and advanced imaging. They reported slowing down clinical decisions and feeling 'stuck' with limited options when conservative treatment had failed. GPs believed that exercise should be the core treatment for DMTs and emphasised engaging patients in an active approach to recovery. Some GPs believed arthroscopy had a role in circumstances where patients didn't improve with physiotherapy. Limited access to public physiotherapy and orthopaedic services hampered GPs' management plans and negatively impacted patient outcomes.

CONCLUSIONS

GP beliefs around what constitutes best care for a DMT generally aligned with the evidence base. Nonetheless, there was sometimes tension between these beliefs and the patient's own treatment expectations. The ability to enact their beliefs was hampered by limited access to conservative management options, sometimes leading to early escalation of care.

Use of Decision-Analytic Modelling to Assess the Cost-Effectiveness of Diagnostic Imaging of the Spine, Shoulder, and Knee: A Scoping Review

BACKGROUND

Limited evidence is available on the cost-effectiveness of diagnostic imaging for back, neck, knee, and shoulder complaints. Decision analytic modelling may be an appropriate method to synthesise evidence from multiple sources, and overcomes issues with trial-based economic evaluations.

OBJECTIVE

The aim was to describe the reporting of methods and objectives utilised in existing decision analytic modelling studies that assess the cost-effectiveness of diagnostic imaging for back, neck, knee, and shoulder complaints.

METHODS

Decision analytic modelling studies investigating the use of any imaging modality for people of any age with back, neck, knee, or shoulder complaints were included. No restrictions on comparators were applied, and included studies were required to estimate both costs and benefits. A systematic search (5 January 2023) of four databases was conducted with no date limits imposed. Methodological and knowledge gaps were identified through a narrative summary.

RESULTS

Eighteen studies were included. Methodological issues were identified relating to the poor reporting of methods, and measures of effectiveness did not incorporate changes in quantity and/or quality of life (cost-utility analysis in only ten of 18 studies). Included studies, particularly those investigating back or neck complaints, focused on conditions that were of low prevalence but have a serious impact on health (i.e. cervical spine trauma, cancer-related back pain).

CONCLUSIONS

Future models should pay particular attention to the identified methodological and knowledge gaps. Investment in the health technology assessment of these commonly utilised diagnostic imaging services is needed to justify the current level of utilisation and ensure that these services represent value for money.

A qualitative study exploring perceived barriers and enablers to fidelity of training and delivery for an intervention to reduce non-indicated imaging for low back pain

BACKGROUND

Non-specific low back pain (LBP) commonly presents to primary care, where inappropriate use of imaging remains common despite guideline recommendations against its routine use. Little is known about strategies to enhance intervention fidelity (i.e., whether interventions were implemented as intended) for interventions developed to reduce non-indicated imaging for LBP.

OBJECTIVES

We aim to inform the development of an intervention to reduce non-indicated imaging among general practitioners (GPs) and chiropractors in Newfoundland and Labrador (NL), Canada. The study objectives are: [1] To explore perceived barriers and enablers to enhancing fidelity of training of GPs and chiropractors to deliver a proposed intervention to reduce non-indicated imaging for LBP and [2] To explore perceived barriers and enablers to enhancing fidelity of delivery of the proposed intervention.

METHODS

An exploratory, qualitative study was conducted with GPs and chiropractors in NL. The interview guide was informed by the National Institutes of Health Behavior Change Consortium fidelity checklist; data analysis was guided by the Theoretical Domains Framework (TDF). Participant quotes were coded into TDF domains, belief statements were generated at each domain, and domains relevant to enhancing fidelity of provider training or intervention delivery were identified.

RESULTS

The study included five GPs and five chiropractors from urban and rural settings. Barriers and enablers to enhancing fidelity to provider training related to seven TDF domains: [1] Beliefs about capabilities, [2] Optimism, [3] Reinforcement, [4] Memory, attention, and decision processes, [5] Environmental context and resources, [6] Emotion, and [7] Behavioural regulation. Barriers and enablers to enhancing fidelity to intervention delivery related to seven TDF domains: [1] Beliefs about capabilities, [2] Optimism, [3] Goals, [4] Memory, attention, and decision processes, [5] Environmental context and resources, [6] Social influences, and [7] Behavioural regulation.

CONCLUSION

The largest perceived barrier to attending training was time; perceived enablers were incentives and flexible training. Patient pressure, time, and established habits were perceived barriers to delivering the intervention as intended. Participants suggested enhancement strategies to improve their ability to deliver the intervention as intended, including reminders and check-ins with researchers. Most participants perceived intervention fidelity as important. These results may aid in the development of a more feasible and pragmatic intervention to reduce non-indicated imaging for GPs and chiropractors in NL.

Translation and Validation of Low Back Pain Knowledge Questionnaire Among Hindi-Speaking Indian Women

Low back pain (LBP) is a common problem encountered among women worldwide. This research aimed at the cross-cultural translation, adaptation, and equivalence assessment of the Low Back Pain Knowledge Questionnaire (LBPKQ) in the Hindi language. The LBPKQ, originally in English (E-LBPKQ) was translated and validated in the Hindi language (H-LBPKQ). The forward-backward procedure was adapted from the recommended guidelines for cross-cultural adaptation of measures. Psychometric properties of the H-LBPKQ were evaluated among 250 Hindi-speaking Indian women with LBP. Test-retest reliability was evaluated in the first 161 participants of the study sample. The overall LBPKQ scores obtained a mean of 3.1 ± 1.1. The internal consistency was excellent for both E-LBPKQ and H-LBPKQ, with Cronbach's alpha of 0.983 (95% confidence interval [CI], 0.980-0.986) and 0.975 (95% CI, 0.970-0.979), respectively. Construct validity was good, with Kaiser-Meyer-Olkin value of 0.892 for E-LBPKQ and 0.852 for H-LBPKQ. Bartlett's test of sphericity (P < .0001) was significant for E-LBPKQ and H-LBPKQ. Two factors were extracted through principal component analysis. The H-LBPKQ is valid and reliable to assess LBP knowledge among Hindi speaking population. Low LBPKQ scores indicate poor LBP knowledge; hence, LBP sensitization is needed among Indian women.

Feasibility of testing the effectiveness of a theory-informed intervention to reduce imaging for low back pain: a pilot cluster randomised controlled trial

BACKGROUND

General medical practitioner (GP) recruitment and subsequent data collection in clinical practice are challenging and may limit successful completion of a large-scale trial. The aim of this study was to assess the feasibility of undertaking a cluster randomised controlled trial to test an intervention to reduce non-indicated imaging for low back pain in general medical practice.

METHODS

A pilot cluster randomised controlled trial was performed, with recruitment of GPs and randomisation of GP clinics. All GPs attended a training session and were asked to record low back pain codes in electronic medical records for any low back pain presentations. Intervention group GPs were trained in the use of a patient education booklet to be used during low back pain patient visits. Control group GPs provided usual care. Outcomes for the proposed trial were collected to determine feasibility. GP recruitment was assessed as the proportion of GPs approached who consented to participate. Low back pain imaging outcomes were collected from electronic medical records (counts of patients presenting with low back pain) and from Australian healthcare administrative (Medicare) data (counts of imaging use). GP compliance with study procedures was assessed and qualitative data reported.

RESULTS

Thirty-four GP clinics were approached, with four participating (12%). At these clinics, 13/19 (68%) GPs consented to participate, and 10/19 (53%) started the study. Outcome data were collected from medical records for all GPs. Three GPs (30%) withdrew consent to access Medicare data, limiting reporting of imaging outcome measures. Three GPs (30%) self-reported low compliance entering low back pain codes.

CONCLUSIONS

This pilot cluster randomised controlled trial demonstrated the feasibility of many aspects of a full-scale effectiveness study, while also identifying a number of challenges that need to be resolved. Recommendations related to GP recruitment, study compliance, data collection, and outcome measures were made to increase the success of a future trial.

TRIAL REGISTRATION

Australia and New Zealand Clinical Trials Register (ANZCTR), Trial ID: ACTRN12619000991112; Registered 11 July 2019, https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=376973.

General practitioner experiences using a low back pain management booklet aiming to decrease non-indicated imaging for low back pain

Background

Imaging is overused in the management of low back pain, resulting in overdiagnosis, increased healthcare utilisation, and increased costs. Few effective interventions to decrease inappropriate use have been developed and have typically not been developed using behaviour change theory. An intervention to reduce non-indicated imaging for low back pain was developed using behavioural change theory, incorporating a novel low back pain management booklet to facilitate patient education and reassurance. The aim of this study was to assess the adoption and feasibility of use of the developed intervention within clinical practice and to determine appropriate implementation strategies to address identified barriers to use.

Methods

Fourteen general medical practitioners were recruited and trained to use the booklet with low back pain patients over a minimum 5-month period. Quantitative data on use of the booklet were collected and analysed descriptively. Qualitative data on use of the booklet and training session were collected in general medical practitioner interviews and thematically analysed. Barriers to use were identified and mapped to suitable implementation strategies using the Behaviour Change Wheel.

Results

Practitioners used the booklet with 73 patients. The booklet was used with 63% of patients presenting with low back pain. Facilitators for using the booklet included patient’s requesting imaging and lower practitioner confidence in managing low back pain. Barriers included accessible storage and remembering to use the booklet. Implementation strategies were identified to increase adoption and feasibility of use, including development of a digital version of the booklet.

Conclusions

General medical practitioners reported that the low back pain management booklet and training were useful for clinical practice, particularly with patients requesting imaging. Barriers to use were identified and implementation strategies to address these barriers will be incorporated into future effectiveness studies. This study forms one of a series of studies to thoroughly develop and test an intervention to reduce non-indicated imaging for low back pain; a successful intervention would decrease healthcare costs and improve patient management.

A Systematic Review of Interventions to Reduce Computed Tomography Usage in the Emergency Department

STUDY OBJECTIVE

Unnecessary computed tomography (CT) scans burden the health care system, leading to increased emergency department (ED) wait times and lengths of stay, costing almost a billion dollars annually. This study aimed to describe ED-based interventions that are most effective at reducing CT imaging while maintaining diagnostic accuracy and patient safety.

METHODS

Adhering to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, MEDLINE, Embase, CINAHL, Cochrane Central Register of Controlled Trials, and Google Scholar were searched until December 31, 2020. Randomized and nonrandomized studies that assessed the effect of an ED-based intervention on CT scan usage were included. Abstract screening, data extraction, and quality assessment were conducted in duplicate. The Grading of Recommendation Assessment, Development and Evaluation framework, with the Risk of Bias 2 and Risk of Bias in Nonrandomized Studies - of Interventions tools, was used to determine the certainty of evidence. Significant clinical and statistical heterogeneity precluded meta-analysis; hence, a narrative synthesis was conducted.

RESULTS

A total of 149 studies were included of 5,667 screened abstracts, with substantial interrater reliability among reviewers (Cohen's κ>0.60). The CT reduction strategies were categorized into 15 single and 11 multimodal interventions by consensus review. Interventions that consistently reduced CT usage included diagnostic pathways, alternative test availability, specialist involvement, and provider feedback. Family/patient education, clinical decision support tools, or passive guideline dissemination did not consistently reduce usage. Only 44% of studies reported unintended consequences of reduction strategies; however, these showed no increase in missed diagnoses or patient harm. The interventions that engaged multiple specialties during planning/implementation had a greater reduction effect than ED only. The certainty of evidence for the primary outcome was very low.

CONCLUSION

Multidisciplinary-led interventions that provided an alternative to CT imaging were the most effective at reducing usage and did so without compromising patient safety.

Novel use of an OSCE to assess medical students' responses to a request for a low value diagnostic imaging test: A mixed methods analysis

OBJECTIVE

Evaluate medical students' communication skills with a standardized patient (SP) requesting a low value test and describe challenges students identify in addressing the request.

METHODS

In this mixed-methods study, third-year students from two medical schools obtained a history, performed a physical examination, and counseled an SP presenting with uncomplicated low back pain who requests an MRI which is not indicated. SP raters evaluated student communication skills using a 14-item checklist. Post-encounter, students reported whether they ordered an MRI and challenges faced.

RESULTS

Students who discussed practice guidelines and risks of unnecessary testing with the SP were less likely to order an MRI. Students cited several challenges in responding to the SP request including patient characteristics and circumstances, lack of knowledge about MRI indications and alternatives, and lack of communication skills to address the patient request.

CONCLUSIONS

Most students did not order an MRI for uncomplicated LBP, but only a small number of students educated the patient about the evidence to avoid unnecessary imaging or the harm of unnecessary testing.

PRACTICE IMPLICATIONS

Knowledge about unnecessary imaging in uncomplicated LBP may be insufficient to adhere to best practices and longitudinal training in challenging conversations is needed.

Identifying and prioritizing do-not-do recommendations in Dutch primary care

BACKGROUND

Low-value care provides minimal or no benefit for the patient, wastes resources, and can cause harm. Explicit do-not-do recommendations in clinical guidelines are a first step in reducing low-value care. The aim of this study was to identify and prioritize do-not-do recommendations in general practice guidelines with priority for implementation.

METHODS

We used a mixed method design in Dutch primary care. First, we identified do-not-do recommendations through a systematic assessment of 92 Dutch guidelines for general practitioners (GPs), resulting in 385 do-not-do recommendations. Second, we selected 146 recommendations addressing high prevalent conditions. Third, a random sample of 5000 Dutch GPs was invited for an online survey to prioritize recommendations based on the prevalence of the condition and low-value care practice, potential harm, and potential cost reduction on a scale from 1 to 5/6. Total scores could range from 4 to 22. Recommendations with a median score > 12 were included. In total, 440 GPs completed the survey.

RESULTS

The selection process led to 30 prioritised recommendations. These covered drug treatments (n = 12), diagnostics (n = 10), referral to other healthcare professions (n = 5), and non-drug treatment (n = 3).

CONCLUSION

Dutch clinical guidelines include many do-not-do recommendations that are perceived as highly relevant by the GPs. The list of 30 high-priority do-not-do recommendations can be used to raise awareness of low-value care among GPs. As the recommendations are supported with the latest evidence from international studies, primary healthcare professionals and policy makers worldwide can use the list for further validating the list in their local context and designing strategies to reduce low-value care.

Patients with low back pain presenting for chiropractic care who want diagnostic imaging are more likely to receive referral for imaging: a cross-sectional study

BACKGROUND

It is unclear if the use of imaging for low back pain (LBP) is impacted by patient beliefs. This study aimed to: (1) describe beliefs about the importance of imaging and whether patients wanted imaging when presenting for chiropractic care for LBP; (2) describe associations between baseline patient characteristics and imaging beliefs and whether patients wanted imaging; and (3) determine whether patients who believed imaging to be important in the management of LBP, or who wanted to receive imaging, were more likely to receive an imaging referral.

METHODS

Cross-sectional observational data was collected between November 2016 to December 2019 from 10 primary care chiropractic clinics in Denmark. Consecutive patients aged 18 or older and presenting with a new episode of LBP were included (N = 2818). Beliefs about the importance of imaging (two questions) and whether imaging was wanted (one question) were collected at the initial visit, together with baseline participant characteristics and whether an imaging referral was provided. Associations between imaging beliefs/desire to receive imaging and participant characteristics were explored using multivariable logistic regression analysis. The relationships between imaging beliefs and desire to receive imaging with subsequent imaging referral were assessed using multivariable logistic regression analysis adjusted for pre-selected confounder variables.

RESULTS

Approximately one third of participants believed imaging to be important for the management of LBP (29.5% (95%CI 27.8, 31.3) or 41.5% (95%CI 39.6, 43.3) depending on the two imaging beliefs questions). Approximately one quarter (26.1%, 95%CI 24.5, 27.7) of participants wanted to receive an imaging referral. Participants were more likely to believe in the importance of imaging or want an imaging referral if they had a longer duration of LBP, history of previous imaging for LBP, or a lower completed education level. Participants who wanted imaging at the initial consult were more likely to receive an imaging referral (Odds ratio; 95%CI 1.6; 1.2, 2.1).

CONCLUSIONS

Approximately one third of patients presenting for chiropractic care in Denmark believed imaging to be important in the management of LBP. One quarter wanted imaging at the initial consult. Patients' desire for imaging appeared to impact the use of diagnostic imaging.

Reducing Low-Value Imaging for Low Back Pain: Systematic Review With Meta-analysis

OBJECTIVE

To examine the effectiveness of implementing interventions to improve guideline-recommended imaging referrals in low back pain.

DESIGN

Systematic review with meta-analysis.

LITERATURE SEARCH

We searched MEDLINE, EMBASE, the Cumulative Index to Nursing and Allied Health Literature, Web of Science Core Collection, and the Cochrane Central Register of Controlled Trials from inception to June 14, 2021, as well as Google Scholar and reference lists of relevant systematic reviews published in the last 10 years. We conducted forward and backward citation tracking.

STUDY SELECTION CRITERIA

Randomized controlled or clinical trials in adults with low back pain to improve imaging referrals.

DATA SYNTHESIS

Bias was assessed using the Cochrane Risk of Bias 2 tool. Data were synthesized using narrative synthesis and random-effects meta-analysis (Hartung-Knapp-Sidik-Jonkman method). We assessed the certainty of evidence using the Grading of Recommendations Assessment, Development and Evaluation approach.

RESULTS

Of the 2719 identified records, 8 trials were included, with 6 studies eligible for meta-analysis (participants: N = 170 460). All trials incorporated clinician education; 4 included audit and/or feedback components. Comparators were no-intervention control and passive dissemination of guidelines. Five trials were rated as low risk of bias, and 2 trials were rated as having some concerns. There was low-certainty evidence that implementing interventions to improve guideline-recommended imaging referrals had no effect (odds ratio [95% confidence interval]: 0.87 [0.72, 1.05]; I² = 0%; studies: n = 6). The main finding was robust to sensitivity analyses.

CONCLUSION

We found low-certainty evidence that interventions to reduce imaging referrals or use in low back pain had no effect. Education interventions are unlikely to be effective. Organizational- and policy-level interventions are more likely to be effective. J Orthop Sports Phys Ther 2022;52(4):175-191. Epub 05 Feb 2022. doi:10.2519/jospt.2022.10731.

Characteristics and Effectiveness of Interventions That Target the Reporting, Communication, or Clinical Interpretation of Lumbar Imaging Findings: A Systematic Review

BACKGROUND

Patients and clinicians may misinterpret the clinical importance of imaging findings in patients with low back pain, leading to potential harm related to overdiagnosis.

PURPOSE

Our aims were to qualitatively summarize the characteristics of tested interventions that target the reporting, communication, or clinical interpretation of lumbar imaging findings and determine whether interventions are effective in improving low back pain-related health outcomes, health care use, or health care costs.

DATA SOURCES

PubMed, MEDLINE, CINAHL, EMBASE, PsycINFO, and the Cochrane Library were searched from inception to October 20, 2021.

STUDY SELECTION

The search retrieved 4394 articles, nine articles (seven studies) met the inclusion criteria to summarize intervention characteristics. Five of these studies had an adequate design for evaluating intervention effectiveness.

DATA ANALYSES

Intervention characteristics were summarized using the Template for Intervention Description and Replication checklist. Effectiveness data were extracted from short, intermediate, and long-term follow-up points. Studies were assessed for risk of bias, and Grading of Recommendations Assessment, Development and Evaluation methodology was used to determine the certainty of the evidence.

DATA SYNTHESIS

Four studies investigated the insertion of prevalence information into imaging reports. Single studies investigated withholding diagnostic information, education, and reassurance. Moderate-quality evidence (from 1 study) suggests that inserting prevalence information into imaging reports probably does not change the overall health care use in the long-term but may reduce opioid prescribing.

LIMITATIONS

The available evidence is limited, and a meta-analysis was not possible.

CONCLUSIONS

Further work is required to develop and test interventions that target the reporting, communication, and clinical interpretation of lumbar imaging findings that may reduce overdiagnosis and improve the management of low back pain.

Improving adherence to acute low back pain guideline recommendations with chiropractors and physiotherapists: the ALIGN cluster randomised controlled trial

Background

Acute low back pain is a common condition, has high burden, and there are evidence-to-practice gaps in the chiropractic and physiotherapy setting for imaging and giving advice to stay active. The aim of this cluster randomised trial was to estimate the effects of a theory- and evidence-based implementation intervention to increase chiropractors’ and physiotherapists’ adherence to a guideline for acute low back pain compared with the comparator (passive dissemination of the guideline). In particular, the primary aim of the intervention was to reduce inappropriate imaging referral and improve patient low back pain outcomes, and to determine whether this intervention was cost-effective.

Methods

Physiotherapy and chiropractic practices in the state of Victoria, Australia, comprising at least one practising clinician who provided care to patients with acute low back pain, were invited to participate. Patients attending these practices were included if they had acute non-specific low back pain (duration less than 3 months), were 18 years of age or older, and were able to understand and read English. Practices were randomly assigned either to a tailored, multi-faceted intervention based on the guideline (interactive educational symposium plus academic detailing) or passive dissemination of the guideline (comparator). A statistician independent of the study team undertook stratified randomisation using computer-generated random numbers; four strata were defined by professional group and the rural or metropolitan location of the practice. Investigators not involved in intervention delivery were blinded to allocation. Primary outcomes were X-ray referral self-reported by clinicians using a checklist and patient low back pain-specific disability (at 3 months).

Results

A total of 104 practices (43 chiropractors, 85 physiotherapists; 755 patients) were assigned to the intervention and 106 practices (45 chiropractors, 97 physiotherapists; 603 patients) to the comparator; 449 patients were available for the patient-level primary outcome. There was no important difference in the odds of patients being referred for X-ray (adjusted (Adj) OR: 1.40; 95% CI 0.51, 3.87; Adj risk difference (RD): 0.01; 95% CI − 0.02, 0.04) or patient low back pain-specific disability (Adj mean difference: 0.37; 95% CI − 0.48, 1.21, scale 0–24). The intervention did lead to improvement for some key secondary outcomes, including giving advice to stay active (Adj OR: 1.96; 95% CI 1.20, 3.22; Adj RD: 0.10; 95% CI 0.01, 0.19) and intending to adhere to the guideline recommendations (e.g. intention to refer for X-ray: Adj OR: 0.27; 95% CI 0.17, 0.44; intention to give advice to stay active: Adj OR: 2.37; 95% CI 1.51, 3.74).

Conclusions

Intervention group clinicians were more likely to give advice to stay active and to intend to adhere to the guideline recommendations about X-ray referral. The intervention did not change the primary study outcomes, with no important differences in X-ray referral and patient disability between groups, implying that hypothesised reductions in health service utilisation and/or productivity gains are unlikely to offset the direct costs of the intervention. We report these results with the caveat that we enrolled less patients into the trial than our determined sample size. We cannot recommend this intervention as a cost-effective use of resources.

Trial registration

Australian New Zealand Clinical Trials Registry ACTRN12609001022257. Retrospectively registered on 25 November 2009

Supplementary Information

The online version contains supplementary material available at 10.1186/s13063-022-06053-x.

Effectiveness of Clinical Decision Support Systems on the Appropriate Use of Imaging for Central Nervous System Injuries: A Systematic Review

BACKGROUND

One of the best practices for timely and efficient diagnoses of central nervous system (CNS) trauma and complex diseases is imaging. However, rates of imaging for CNS are high and impose a lot of costs to health care facilities in addition to exposing patients with negative impact of ionizing radiation.

OBJECTIVES

This study aimed to systematically review the effects and features of clinical decision support systems (CDSSs) for the appropriate use of imaging for CNS injuries.

METHOD

We searched MEDLINE, SCOPUS, Web of Science, and Cochrane without time period restriction. We included experimental and quasiexperimental studies that assessed the effectiveness of CDSSs designed for the appropriate use of imaging for CNS injuries in any clinical setting, including primary, emergency, and specialist care. The outcomes were categorized based on imaging-related, physician-related, and patient-related groups.

RESULT

A total of 3,223 records were identified through the online literature search. Of the 55 potential papers for the full-text review, 11 eligible studies were included. Reduction of CNS imaging proportion varied from 2.6 to 40% among the included studies. Physician-related outcomes, including guideline adherence, diagnostic yield, and knowledge, were reported in five studies, and all demonstrated positive impact of CDSSs. Four studies had addressed patient-related outcomes, including missed or delayed diagnosis, as well as length of stay. These studies reported a very low rate of missed diagnosis due to the cancellation of computed tomography (CT) examine according to the CDSS recommendations.

CONCLUSION

This systematic review reports that CDSSs decrease the utilization of CNS CT scan, while increasing physicians' adherence to the rules. However, the possible harm of CDSSs to patients was not well addressed by the included studies and needs additional investigation. The actual effect of CDSSs on appropriate imaging would be realized when the saved cost of examinations is compared with the cost of missed diagnosis.

Effectiveness of brief patient information materials for promoting correct beliefs about imaging and inevitable consequences of low back pain: A randomised controlled trial

OBJECTIVE

To investigate what format for providing patient information (i.e. written summary, infographic or video animation) is most effective for promoting correct beliefs about imaging and inevitable consequences of low back pain (LBP).

DESIGN

Randomised controlled trial.

SETTING/PATIENTS

One hundred and fifty-nine patients with non-specific LBP were recruited from outpatient physiotherapy clinics.

INTERVENTION

Participants were randomised to receive patient information in one of three formats: video animation, infographic or written summary. Patients were allowed to read or watch the materials for up to 20 min.

MEASUREMENTS

Outcome were assessed before and immediately after the intervention. The primary outcome was the Back Beliefs Questionnaire. The secondary outcome was beliefs about imaging for LBP assessed by two questions.

RESULTS

All 159 patients completed the study. Our findings revealed no difference between groups for the Back Beliefs Questionnaire. Correct beliefs about imaging were more likely with the infographic than the video animation (Question 1- Odds Ratio [OR] = 3.9, 95% confidence interval [CI]: 1.7, 8.7; Question 2- OR = 6.8, 95%CI: 2.7, 17.2) and more likely with the written summary than the video animation (Question 1- OR = 3.3, 95%CI: 1.5, 7.4; Question 2- OR = 3.7, 95%CI: 1.6, 8.5). No difference between infographic and written summary formats were reported for the questions assessing LBP imaging beliefs.

CONCLUSION

The three materials were equally effective in improving patient's general beliefs about LBP care. However, the traditional written summary or infographic formats were more effective than the video animation format for improving beliefs about imaging for LBP.

Effect of a waiting room communication strategy on imaging rates and awareness of public health messages for low back pain

BACKGROUND

Few studies have investigated the effects of waiting room communication strategies on health-care behavior.

OBJECTIVE

We aimed to determine the effect of a waiting room communication strategy, designed to raise awareness of potential harms of unnecessary imaging, on lumbar imaging rates in the emergency department (ED).

METHODS

We conducted a controlled experimental study with a replicated time series design. The design included a 6-week run-in time. Following this there were alternating 1-week intervention and control periods. The intervention group received a communication strategy describing the potential harms of unnecessary imaging for low back pain, shown on a 55" LCD screen positioned in the ED waiting room. The communication strategy was designed by a creative innovation agency and included five digital posters and a patient leaflet. The control group received standard messaging for the waiting room at the time, shown on the same 55" LCD screen, and access to the patient leaflet. The primary outcome was the number and proportion of people presenting to ED with low back pain who received at least one lumbar imaging test, measured using routinely collected ED data. Secondary patient-reported outcomes (patient satisfaction and awareness of campaign messages) were collected from a sample of people presenting for any condition who responded to a text-message-based survey.

RESULTS

For the imaging outcome, 337 people presenting to ED with low back pain were included over a 4-month period (intervention n = 99; control n = 238). All had available data on lumbar imaging. Use of lumbar imaging was 25% in those exposed to the communication strategy [95% confidence interval (CI) = 18% to 35%] compared with 29% in those exposed to the standard waiting room messaging [95% CI = 23% to 35%; odds ratio (OR) = 0.83, 95% CI = 0.49 to 1.41]. For the patient-reported outcomes, 349 patients presenting to ED for any condition responded to the survey (intervention n = 170; control n = 179; response rate = 33%). There was uncertain evidence that the intervention increased awareness of the communication strategy leaflet (OR = 2.00, 95% CI = 0.90 to 4.47). Other measures did not suggest between-group differences in patient satisfaction or awareness of the campaign messages.

CONCLUSION

A communication strategy displayed in the ED waiting room may slightly reduce the proportion of patients with low back pain who receive lumbar imaging, although there is uncertainty due to imprecision. The campaign did not appear to increase awareness of campaign messages or affect patient satisfaction in a sample of patients presenting to the ED for any reason. Larger studies should investigate whether simple, low-cost waiting room communication strategies can raise awareness of unnecessary healthcare and influence health-care quality.

TRIAL REGISTRATION

ACTRN12620000300976, 05/03/2020.

Patient education booklet to support evidence-based low back pain care in primary care - a cluster randomized controlled trial

BACKGROUND

Inappropriate imaging and low-value care for low back pain (LBP) are common. A new patient-education booklet was created to overcome identified barriers to the delivery of recommended care, including the use of inappropriate imaging. Our aim was to assess the effectiveness of this booklet as part of primary care for LBP patients in comparison to usual care.

METHODS

A cluster-randomized trial was performed. The intervention involved providing practitioners with the new patient-education booklet and a 30-min training session on its use. The booklet was provided during the clinical consult to all consenting LBP patients in the intervention group. Primary outcomes were the proportion of patients presenting with LBP who underwent imaging examinations during the first three months of follow-up and PROMIS PF-20 (Patient-Reported Outcomes Measurement Information System, 20-item physical functioning short form) change between baseline and three-month follow-up. Secondary outcomes, including sick leave and imaging examinations at 12 months, were investigated. Logistic regression using GEE-estimation was used for dichotomous outcomes, Poisson regression using GEE-estimation for count outcomes, and linear mixed models for continuous outcomes.

RESULTS

Using the patient education booklet appeared to substantially reduce the proportion of LBP patients who underwent an imaging examination at three months, but the result was not statistically significant (OR 0.57, 95% confidence interval (Cl) 0.27 to 1.22). At 12 months, the effect was slightly larger and statistically significant (OR 0.50, 95%Cl 0.30 to 0.83, p = 0.008). No difference was observed in the PROMIS PF-20 T-score change between baseline and 3 months or 12 months (p = 0.365 and p = 0.923, respectively). The number of sick leave days in the intervention group was less than that in the control group at 3 months (RR 0.47, 95%Cl 0.26 to 0.83, p = 0.010) and at 12 months (RR 0.36, 95%Cl 0.18 to 0.72, p = 0.004).

CONCLUSIONS

The booklet appeared to be effective in reducing the proportion of LBP patients who underwent imaging examinations over 12 months. The intervention had no discernible effect on the PROMIS PF20 T-score change. The number of sick leave days was substantially lower in the intervention group.

TRIAL REGISTRATION

ISRCTN, ISRCTN14389368 , Registered 4 April 2019-Retrospectively registered.

Combined lumbar spine MRI and CT appropriateness checklist: a quality improvement project in Saskatchewan, Canada

Background

As rates of advanced imaging for lower back pain (LBP) continue to increase, there is a need to ensure the appropriateness of imaging.

Objective

The goal of this project was to reduce the number of inappropriate magnetic resonance imaging (MRI) and computed tomography (CT) requests for LBP patients and facilitate appropriate imaging by developing a combined imaging appropriateness checklist for lumbar spine MRI and CT.

Methods

In prior work, we developed and adopted individual evidence-based lumbar spine MRI and CT checklists into the radiology requisition process. In the current project, a combined checklist was developed and trialed in one of the former Saskatchewan health regions (Five Hills) beginning in May 2018. Using statistical process control, control charts compared the monthly number of imaging requests pre-checklist implementation and post-checklist implementation from May 2017 to February 2020. The monthly number of lumbar spine MRI and CT requisitions in the nearby former Saskatchewan Regina Qu’Appelle Health Region, in which the combined checklist was not trialed, was also plotted and compared as a balancing measure.

Results

In Five Hills, a shift (decrease) was observed in the monthly number of lumbar spine MRI requisitions 7 months following the implementation of the combined checklist. However, the monthly number of lumbar spine CT requisitions did not change significantly. In the Regina Qu’Appelle Health Region, there was a shift (increase) in the monthly number of lumbar spine MRI requisitions, while the monthly number of lumbar spine CT requests decreased after the implementation of the combined checklist.

Conclusions

The combined checklist with evidence-based indications for lumbar spine MRI and CT imaging in LBP patients appeared to reduce the complexity associated with two previous individual checklists and facilitate imaging appropriateness. Accountable benefits may include the reduction of radiation exposure as a result of unnecessary and repeated imaging and reduction in wait times for CT and/or MRI.

Clinical and healthcare improvement through My Health Record usage and education in general practice (CHIME-GP): a study protocol for a cluster-randomised controlled trial

BACKGROUND

There is an international interest in whether improved primary care can lead to a more rational use of health resources. There is evidence that educational interventions can lead to improvements in the quality of rational prescribing and test ordering. A new national platform for shared medical records in Australia, My Health Record (MHR), poses new opportunities and challenges for system-wide implementation. This trial (CHIME-GP) will investigate whether components of a multifaceted education intervention in an Australian general practice setting on rational prescribing and investigation ordering leads to reductions in health-service utilisation and costs in the context of the use of a national digital health record system.

METHODS

The trial will be undertaken in Australian general practices. The aim of the research is to evaluate the effectiveness of components of a web-based educational intervention for general practitioners, regarding rational use of medicines, pathology and imaging in the context of the use of the MHR system. Our target is to recruit 120 general practitioners from urban and regional regions across Australia. We will use a mixed methods approach incorporating a three-arm pragmatic cluster randomised parallel trial and a prospective qualitative inquiry. The effect of each education component in each arm will be assessed, using the other two arms as controls. The evaluation will synthesise the results embedding qualitative pre/post interviews in the quantitative results to investigate implementation of the intervention, clinical behaviour change and mechanisms such as attitudes, that may influence change. The primary outcome will be an economic analysis of the cost per 100 consultations of selected prescriptions, pathology and radiology test ordering in the 6 months following the intervention compared with 6 months prior to the intervention. Secondary outcome measures include the rates per 100 consultations of selected prescriptions, pathology and radiology test ordering 6 months pre- and post-intervention, and comparison of knowledge assessment tests pre- and post-intervention.

DISCUSSION

The trial will produce robust health economic analyses on the evidence on educational intervention in reducing unnecessary prescribing, pathology and imaging ordering, in the context of MHR. In addition, the study will contribute to the evidence-base concerning the implementation of interventions to improve the quality of care in primary care practice.

TRIAL REGISTRATION

ClinicalTrials.gov ACTRN12620000010998 . Registered on 09 January 2020 with the Australian New Zealand Clinical Trials Registry.

Appropriateness of imaging decisions for low back pain presenting to the emergency department: a retrospective chart review study

BACKGROUND

Imaging for low back pain is widely regarded as a target for efforts to reduce low-value care.

OBJECTIVE

We aimed to estimate the prevalence of the overuse and underuse of lumbar imaging in patients presenting with low back pain to the emergency department (ED).

METHODS

This was a retrospective chart review study of five public hospital EDs in Sydney, Australia, in 2019-20. We reviewed the clinical charts of consecutive adult patients who presented with a complaint of low back pain and extracted clinical features relevant to a decision to request lumbar imaging. We estimated the proportion of encounters where a decision to request lumbar imaging was inappropriate (overuse) or where a clinician did not request an appropriate and informative lumbar imaging test when indicated (underuse).

RESULTS

Six hundred and forty-nine patients presented with a complaint of low back pain, of which 158 (24.3%) were referred for imaging. Seventy-nine (12.2%) had a combination of features suggesting that lumbar imaging was indicated according to clinical guidelines. The prevalence of overuse and underuse of lumbar imaging was 8.8% (57 of 649 cases, 95% CI 6.8-11.2%) and 4.3% (28 of 649 cases, 95% CI 3.0-6.1%), respectively. Thirteen cases were classified as underuse because the patients were referred for uninformative imaging modalities (e.g. referred for radiography for suspected cauda equina syndrome).

CONCLUSION

In this study of emergency care, there was evidence of not only overuse of lumbar imaging but also underuse through failure to request lumbar imaging when indicated or referral for an uninformative imaging modality. These three issues seem more important targets for quality improvement than solely focusing on overuse.

What behaviour change techniques have been used to improve adherence to evidence-based low back pain imaging?

Background

Despite international guideline recommendations, low back pain (LBP) imaging rates have been increasing over the last 20 years. Previous systematic reviews report limited effectiveness of implementation interventions aimed at reducing unnecessary LBP imaging. No previous reviews have analysed these implementation interventions to ascertain what behaviour change techniques (BCTs) have been used in this field. Understanding what techniques have been implemented in this field is an essential first step before exploring intervention effectiveness.

Methods

We searched EMBASE, Ovid (Medline), CINAHL and Cochrane CENTRAL from inception to February 1, 2021, as well as and hand-searched 6 relevant systematic reviews and conducted citation tracking of included studies. Two authors independently screened titles, abstracts, and full texts for eligibility and extracted data on study and intervention characteristics. Study interventions were qualitatively analysed by three coders to identify BCTs, which were mapped to mechanisms of action from the theoretical domains framework (TDF) using the Theory and Techniques Tool.

Results

We identified 36 eligible studies from 1984 citations in our electronic search and a further 2 studies from hand-searching resulting in 38 studies that targeted physician behaviour to reduce unnecessary LBP imaging. The studies were conducted in 6 countries in primary (n = 31) or emergency care (n = 7) settings. Thirty-four studies were included in our BCT synthesis which found the most frequently used BCTs were ‘4.1 instruction on how to perform the behaviour’ (e.g. Active/passive guideline dissemination and/or educational seminars/workshops), followed by ‘9.1 credible source’, ‘2.2 feedback on behaviour’ (e.g. electronic feedback reports on physicians’ image ordering) and 7.1 prompts and cues (electronic decision support or hard-copy posters/booklets for the office). This review highlighted that the majority of studies used education and/or feedback on behaviour to target the domains of knowledge and in some cases also skills and beliefs about capabilities to bring about a change in LBP imaging behaviour. Additionally, we found there to be a growing use of electronic or hard copy reminders to target the domains of memory and environmental context and resources.

Conclusions

This is the first study to identify what BCTs have been used to target a reduction in physician image ordering behaviour. The majority of included studies lacked the use of theory to inform their intervention design and failed to target known physician-reported barriers to following LBP imaging guidelines.

Protocol Registation

PROSPERO CRD42017072518

Supplementary Information

The online version contains supplementary material available at 10.1186/s13012-021-01136-w.

Categorisation of lumbar spine MRI referrals in Denmark as compliant or non-compliant to international imaging guidelines: an inter-rater reliability study

BACKGROUND

Managing low back pain (LBP) often involves MRI despite the fact that international guidelines do not recommend routine imaging. To allow us to explore the topic and use this knowledge in further research, a reliable method to review the MRI referrals is needed. Consequently, this study aimed to assess the inter-rater reliability of a method evaluating lumbar spine MRI referrals' appropriateness.

METHODS

Four inexperienced students (chiropractic master's students) and a senior clinician (chiropractor) were included as independent raters in this inter-rater reliability study. Lumbar spine MRI referrals from primary care on patients (> 18 years) with LBP with or without leg pain were included. The referrals were classified using a modified version of the American College of Radiology (ACR) imaging appropriateness criteria for LBP. Categories of appropriate referrals included; fractures, cancer, previous surgery, candidate for surgery or suspicion of cauda equina. Inappropriate referrals included lacking information on previous non-surgical treatment, no word on non-surgical treatment duration, or "other reasons" for inappropriate referrals. After two rounds of training and consensus sessions, 50 lumbar spine MRI referrals were reviewed independently by the five raters. Inter-rater reliability was quantified using unweighted Kappa statistics, and the observed agreement was calculated with both a pairwise comparison and an overall five-rater comparison.

RESULTS

Inter-rater reliability was substantial, with a Kappa value for appropriate vs. inappropriate referrals of 0.76 (95% CI: 0.55-0.89). When six and eight subcategories were evaluated, the Kappa values were 0.77 (95% CI: 0.58-0.91) and 0.82 (95% CI: 0.72-0.92), respectively. The overall percentage of agreement for appropriate and inappropriate referrals was 92% and ranged from 88 to 98% for the pairwise comparisons of the five raters' results. For the six and eight subcategories, the overall agreement was 92 and 88%, respectively, ranging from 88 to 98% and 84-92%, respectively, for the pairwise comparisons.

CONCLUSION

The inter-rater reliability of the evaluation of the appropriateness of lumbar spine MRI referrals, according to the modified ACR-appropriateness criteria, was found to range from substantial to almost perfect and can be used for research and quality assurance purposes.

Development of a Logic Model for a Programme to Reduce the Magnetic Resonance Imaging Rate for Non-Specific Lower Back Pain in a Tertiary Care Centre

Tertiary care centres continue to experience over-utilisation of diagnostic imaging services for lower back pain cases that may not be required. Moreover, these services may require additional time and consequently delay access to services that offer conservative management, i.e., physiotherapy, and hence, increase the direct and indirect costs with no added quality of care. A logic model was developed based on qualitative and quantitative studies that explains the plan and process evaluation strategies to reduce imaging for lower back pain in tertiary hospitals. Logic models are useful tools for defining programme components. The delivery of the components is ensured by well-defined process evaluations that identify any needed modifications. The proposed logic model provides a road map for spine clinics in tertiary care hospitals to decrease the number of patient referrals for magnetic resonance imaging and waiting times for consultations and services and promote early access to physiotherapy services.

Effectiveness and harms of clinical decision support systems for referral within chronic pain practice: protocol for a systematic review and meta-analysis

BACKGROUND

Chronic pain is a common public health problem with negative consequences for individuals and societies. Fortunately, interdisciplinary chronic pain management has been shown to be effective for improving patients' outcomes and strongly recommended in clinical practice guidelines. Appropriate referral within the healthcare system based on individuals' needs and available services is essential to optimise health-related outcomes and maximise resources. Clinical decision support systems have been shown to be effective for supporting healthcare professionals in different practices. However, there is no knowledge synthesis on clinical decision support systems for referral within chronic pain practice. We aim to identify the clinical decision support systems for referral within chronic pain practices and assess their content, effectiveness, harms, and validation parameters.

METHODS

Using the methodology of Cochrane reviews, we will perform a systematic review and meta-analysis based on studies meeting the following criteria: Population, patients with chronic pain and/or healthcare professionals working in chronic pain; Intervention, clinical decision support systems for referral within chronic pain practice; Comparison, any other clinical tool, any usual care or practices; Outcomes, clinical outcomes of patients measuring how patients feel, function or survive including benefits, adverse effects, continuity of care, care appropriateness, care satisfaction, quality of life, healthcare professional performance, and cost outcomes; and Study design: randomized controlled trials, non-randomized controlled trials, before and after controlled studies and interrupted time series. We will search relevant literature with the support of an information specialist using Medline, Embase, PsycInfo, CINHAL, Web of Science and Cochrane Library from their inception onwards. Two reviewers will independently complete study selection, data extraction and risk of bias assessment. We will analyse data to perform both narrative syntheses and meta-analysis if appropriate.

DISCUSSION

Findings of this review will contribute to enhancing chronic pain care and research. Clinical decision support systems identified as effective in this review can be investigated for implementation in clinical practice and impact on improving patient, clinical and health system outcomes. Clinical decision support systems not yet ready for implementation that require further improvement will also be identified.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO registration: CRD42020158880 .

Knowledge of and adherence to radiographic guidelines for low back pain: a survey of chiropractors in Newfoundland and Labrador, Canada

Background

Low back pain (LBP) rarely requires routine imaging of the lumbar spine in the primary care setting, as serious spinal pathology is rare. Despite evidence-based clinical practice guidelines recommending delaying imaging in the absence of red flags, chiropractors commonly order imaging outside of these guidelines. The purpose of this study was to survey chiropractors to determine the level of knowledge, adherence to, and beliefs about, clinical practice guidelines related to the use of lumbar radiography for LBP in Newfoundland and Labrador (NL), Canada.

Methods

A cross-sectional survey of chiropractors in NL (n = 69) was conducted between May and June 2018, including questions on demographics, awareness of radiographic guidelines, and beliefs about radiographs for LBP. We assessed behavioural simulation using clinical vignettes to determine levels of adherence to LBP guideline recommendations.

Results

The response rate was 77% (n = 53). Half of the participants stated they were aware of current radiographic guideline recommendations, and one quarter of participants indicated they did not use guidelines to inform clinical decisions. The majority of participants agreed that x-rays of the lumbar spine are useful for patients with suspected pathology, are indicated when a patient is non-responsive to 4 weeks of conservative treatment for LBP, and when there are neurological signs associated with LBP. However, a small proportion indicated that there is a role for full spine x-rays (~ 21%), x-rays to evaluate patients with acute LBP (~ 13%), and that patient expectations play a role in decision making (4%). Adherence rate to radiographic guidelines measured using clinical vignettes was 75%.

Conclusions

While many chiropractors in this sample reported being unsure of specific radiographic guidelines, the majority of respondents adhered to guideline recommendations measured using clinical vignettes. Nonetheless, a small proportion still hold beliefs about radiographs for LBP that are discordant with current radiographic guidelines. Future research should aim to determine barriers to guideline uptake in this population in order to design and evaluate tailored knowledge translation strategies to reduce unnecessary LBP imaging.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12998-020-00361-2.

Medical Practice Variation Among Primary Care Physicians: 1 Decade, 14 Health Services, and 3,238,498 Patient-Years

PURPOSE

Variation in medical practice is associated with poorer health outcomes, increased costs, disparities in care, and increased burden on the public health system. In the present study, we sought to describe and assess inter- and intra-primary care physician variation, adjusted for patient and clinic characteristics, over a decade of practice and across a broad range of health services.

METHODS

We assessed practice patterns of 251 primary care physicians in southern Israel. For each of 14 health services (imaging tests, cardiac tests, laboratory tests, and specialist visits) we described interphysician and intraphysician variation, adjusted for patient case mix and clinic characteristics, using the coefficient of variation. The adjusted rates were assessed by generalized linear negative-binomial mixed models.

RESULTS

The variation between physicians was on average 3-fold greater than the variation of individual physician practice over the years. Services with low utilization were associated with greater inter- and intraphysician variation: r_s = (-0.58), P = .03 and r_s = (-0.39), P = .17, respectively. In addition, physician utilization ranks averaged over all health services were consistent across the 14 health services (intraclass correlation coefficient, 0.94; 95% CI, 0.93-0.95).

CONCLUSIONS

Our results show greater variation in practice patterns between physicians than for individual physicians over the years. It appears that the variation remains high even after adjustment for patient and clinic characteristics and that the individual physician utilization patterns are stable across health services. We propose that personal behavioral characteristics of medical practitioners might explain this variation.

Concordance of patient beliefs and expectations regarding the management of low back pain with guideline recommendations - a cross-sectional study in Germany

Background

Low back pain is a common reason for patients to seek medical care. Physician non-adherence to clinical guidelines has been observed. We investigated the extent to which patient expectations correspond to recommendations of the German national guideline for management of low back pain (G-LBP) and whether patient characteristics, history of LBP and previous treatment experience are associated with expectations.

Methods

A cross-sectional study including patients from 13 general practices was conducted. Data were collected using a questionnaire. Inverse probability weights were used to address non-response bias. Descriptive analysis and multivariate logistic regression models were performed.

Results

A total of 977 patients were included in analyses (median age 57 years, 39% male). 75% of patients reported experiencing LBP currently or within the last year. More than 65% indicated they would agree to forgo further examinations if their LBP was judged by their physician to be of no serious concern. This was associated with the highest level of education and no prior imaging, and negatively associated with good-to-poor health status and moderate-to-severe pain intensity. 40% of participants expected imaging. The highest educational level, female gender and no prior imaging were associated with a decreased expectation of imaging. 70% expected prescriptions for massages. Females, participants with good-to-poor health status, current LBP or LBP in the last 12 months had an increased expectation for massages. Expectations for injection therapy (45%) were mainly associated with previous injections. Expectations for physiotherapy (64%) were associated with female gender, lower educational level, good-to-poor health status, current LBP or in the last 12 months. The perspective that daily activities should be continued (66%) was associated with female gender and higher educational level. Participants who agreed to the statement ‘There is no effective treatment for LBP’ (11%) had a poor health status, current LBP and a severe pain intensity.

Conclusion

Patient views regarding LBP management are partially concordant with guideline recommendations and are strongly influenced by previous treatment experiences and education level. Exploration of patient expectations and experiences in LBP treatment may help minimize dissatisfaction of patients expecting treatments not endorsed by guidelines and simultaneously increase physician guideline adherence.

An evaluation of MRI lumbar spine scans within a community-based diagnostic setting

BACKGROUND

With an ongoing move towards more management of patients within the community setting, demand for magnetic resonance imaging (MRI) is increasing and commonly used in lower back conditions. There is well recorded overuse of MRI in this scenario which goes against evidence-based practice and adds to rising healthcare costs.

METHODS

The study was a retrospective review of lumbar spine MRI scans performed within a community-based setting over an 18-month period. The review took a randomised purposive sample of patients (n = 450); looking at adherence to, and relevance of, guidelines in managing lower back conditions. Data extracted provided information on demographics and prevalence of clinical presentation and report observations.

RESULTS

There is variation in practice and utlisation of MRI with this patient group which warrants further exploration. Results support inappropriate use, lacking adherence to guidelines and pathways, leading to unnecessary imaging. 46% of referrals were considered clinically justified with 38% of report findings considered abnormal and of clinical relevance. Chi-square and binomial logistic regression were used to assess the significance and relationship of any factors on referral justification and report outcome. No difference was found between type of referrer, with patient age and leg symptoms being significant factors.

CONCLUSION

The study highlights the opportunity to integrate better referral criteria to improve referral quality, its suitability and the relevance of final reports. In the current climate this would help manage appropriate use of imaging resources during the post COVID-19 pandemic recovery phase, as well as support recommendations regarding diagnostic reform and a move towards more community-based diagnostics.

Rates, costs and determinants of lumbar spine imaging in population-based women born in 1973-1978: Data from the Australian Longitudinal Study on Women's Health

Objective

There are concerns that lumbar spine imaging represents low value care. Our aim was to examine the use of lumbar spine imaging [radiography, computed tomography (CT), magnetic resonance imaging (MRI)] over 20 years, and costs and person-level characteristics of imaging in a large cohort of Australian women.

Methods

The Australian Longitudinal Study on Women’s Health (ALSWH) is a longitudinal population-based survey of women randomly selected from national health insurance scheme (Medicare) database. This study examined 13458 women born in 1973–1978 who consented to link their ALSWH and Medical Benefits Scheme records. Self-reported data on demographics, body mass index, depression, physical and mental health, and back pain were collected in each survey performed in 1996, 2000, 2003, 2006, 2009, 2012, and 2015. Data on lumbar spine imaging from 1996 to 2015 were obtained from the Medical Benefits Scheme database.

Results

38.9% of women underwent some form of lumbar spine imaging over 20 years. While radiography increased from 1996 to 2011 and decreased thereafter, CT and MRI continued to increase from 1996 to 2015. In women with self-reported back pain, depression and poorer physical health were associated with imaging, with no significant differences in types of imaging. Based on imaging rates in ALSWH, the estimated costs for Australian women aged 30–39 years were AU$51,735,649 over 2011–2015.

Conclusions

Lumbar spine imaging was common in population-based Australian women, with rates increasing over 20 years. Depression and poor physical health were associated with lumbar spine imaging. Raising awareness of this in clinicians is likely to result in significant cost savings if clinical guidelines are followed, with the potential of freeing resources for high value care and health outcomes.

Feasibility study and process evaluation of MRI plus physiotherapy vs. physiotherapy alone in non-specific chronic low back pain among patients in Saudi Arabia

Aim

To determine the feasibility of conducting a definitive randomised control trial (RCT) to answer the following questions: (1) Is early physiotherapy treatment acceptable and feasible for patients and direct healthcare providers? and (2) Is early physiotherapy intervention associated with better disability and psychosocial outcomes compared with the practice of routine MRIs?

Methods

In a feasibility RCT in Riyadh City from 01 March 2018 until 29 July 2018, chronic low back pain (CLBP) patients presenting to spine clinics were randomised to receive an MRI (intervention) plus physiotherapy rehabilitation or physiotherapy alone (control group). The acceptability of randomisation to the control group (non-MRI) was tested during the recruitment by qualitatively interviewing study participants and referring physicians. Moreover, interviews with study participants explored the broader social, political, economic, and environmental (context) aspects that may influence trial delivery and intervention implementation.

Results

The recruitment target was not met: 16/24 (66%) participants were recruited in 4 months (12.4% of those screened); 33% declined. The process evaluation identified numerous factors that may affect the success of a definitive RCT in Saudi Arabia. These were research resources, the lack of research infrastructure to support recruitment to trials, limited research capacity in terms of knowledge and skills of the healthcare team, and limited funding.

Conclusion

A definitive RCT to test the influence of MRI diagnosis on the psychosocial and disability outcomes in people with CLBP treated with physiotherapy in Saudi Arabia is feasible. However, the lack of research infrastructure, research capacity, the impact of MRI on patient outcomes, and a lack of clinical equipoise in the treatment and management of CLBP in Saudi Arabia pose major barriers to clinical trials.

To Sustain or not to Sustain: Varying Educational Sessions on Advanced Imaging of Low Back Pain and R-SCAN

PURPOSE

The aim is to present our long-term institutional experience on the use of the American College of Radiology's (ACR's) Radiology Support, Communication, and Alignment Network (R-SCAN) via educational presentations and guideline dissemination in sustaining lumbar spine magnetic resonance imaging (MRI) appropriateness for low back pain.

METHODS

Initial educational presentations on appropriate use criteria for lumbar spine MRI were given to referring providers at three county clinics in April and May of 2016. A second educational refresher was given to the same 3 clinics in November 2017: Clinic A received guideline dissemination, Clinic B served as a control group, and Clinic C received a refresher presentation. Wilcoxon rank-sum test was used to compare the monthly MRI referral rate and ACR Appropriateness Criteria rating.

RESULTS

There was no significant difference in monthly referral rates and ACR Appropriateness Criteria after the second education. Monthly referral rates were significantly lower than the baseline rates before the first education for Clinic A (P <0.001), C (P = 0.004), and the combined total (P = 0.002). ACR Appropriateness Criteria ratings were significantly higher than the baseline ratings before the first education for Clinic C (P = 0.002) and the combined total (P = 0.024).

DISCUSSION

After the second education, inappropriateness, and referral rates remained significantly lower when compared to rates before but not after the first education. Radiology Support, Communication, and Alignment Network is an invaluable online tool for both radiology practices and referring clinicians to become familiar in preparing to comply with the Protecting Access to Medicare Act and satisfying the Improvement Activities category of the Merit Based Incentive Payment Systems.

Clinician and patient beliefs about diagnostic imaging for low back pain: a systematic qualitative evidence synthesis

OBJECTIVE

Overuse of diagnostic imaging for patients with low back pain remains common. The underlying beliefs about diagnostic imaging that could drive overuse remain unclear. We synthesised qualitative research that has explored clinician, patient or general public beliefs about diagnostic imaging for low back pain.

DESIGN

A qualitative evidence synthesis using a thematic analysis.

METHODS

We searched MEDLINE, EMBASE, CINAHL, AMED and PsycINFO from inception to 17 June 2019. Qualitative studies that interviewed clinicians, patients and/or general public exploring beliefs about diagnostic imaging for low back pain were included. Four review authors independently extracted data and organised these according to themes and subthemes. We used the Critical Appraisal Skills Programme tool to critically appraise included studies. To assess confidence in review findings, we used the GRADE-Confidence in the Evidence from Reviews of Qualitative Research method.

RESULTS

We included 69 qualitative studies with 1747 participants. Key findings included: Patients and clinicians believe diagnostic imaging is an important test to locate the source of low back pain (33 studies, high confidence); patients with chronic low back pain believe pathological findings on diagnostic imaging provide evidence that pain is real (12 studies, moderate confidence); and clinicians ordered diagnostic imaging to reduce the risk of a missed diagnosis that could lead to litigation, and to manage patients' expectations (12 studies, moderate confidence).

CONCLUSION

Clinicians and patients can believe that diagnostic imaging is an important tool for locating the source of non-specific low back pain. Patients may underestimate the harms of unnecessary imaging tests. These beliefs could be important targets for intervention.

PROSPERO REGISTRATION NUMBER

CRD42017076047.

A Systematic Review Protocol to Determine the Most Effective Strategies to Reduce Computed Tomography Usage in the Emergency Department

This study describes the protocol for a systematic review and meta-analysis. The primary objective of the review is to identify experimental studies assessing the effectiveness of interventions that aim to reduce the proportion of computed tomography (CT) in emergency departments (EDs). Data permitting, our secondary objectives will be to assess the impact of reduction in CT utilization on the length of stay, admission to hospital, and uptake/satisfaction with the intervention. When available, balancing measures such as readmission to hospital or ED revisit rates will be included. Pre-defined subgroup analyses include patient populations (adult or pediatric), type of ED, and the nature of the intervention. Through this review, the research team aims to inform knowledge translation initiatives aimed at lowering CT usage in the ED by identifying the most effective interventions to safely improve CT resource stewardship.

Health care personnel's perception of guideline implementation for musculoskeletal imaging: a process evaluation

Background

The increasing complexity and variability in radiology have significantly fueled the need for guidelines. There are many methods for disseminating and implementing guidelines however; and obtaining lasting changes has been difficult. Implementation outcome is usually measured in a decrease in unwarranted examinations, and qualitative data are rarely used. This study’s aim was to evaluate a guideline implementation process and identify factors influencing implementation outcome using qualitative data.

Methods

Seven general practitioners and five radiological personnel from a Norwegian county participated in four focus group interviews in 2019. The data were analyzed using qualitative content analysis, where some categories were predetermined, while most were drawn from the data.

Results

Four main categories were developed from the data material. 1) Successful/unsuccessful parts of the implementation, 2) perceived changes/lack of changes after the implementation, 3) environment-related factors that affected guideline use, and 4) User related factors that affect guideline use.

Conclusions

Our findings show that clinical guideline implementation is difficult, despite the implementation strategy being tailored to the target groups. Several environment- and user-related factors contributed to the lack of changes experienced in practice for both general practitioners and radiological personnel.

Transcultural adaption and preliminary evaluation of "understanding low back pain" patient education booklet

Background

Low back pain (LBP) is the number one cause of disability globally. LBP is a symptom associated with biological, psychological and social factors, and serious causes for pain are very rare. Unhelpful beliefs about LBP and inappropriate imaging are common. Practitioners report pressure from patients to provide inappropriate imaging. A recently developed patient education and management booklet, ‘Understanding low back pain’, was designed to target previously identified barriers for reducing inappropriate imaging. The booklet includes evidence-based information on LBP and supports communication between patients and practitioners. Our aim was to 1) describe the translation process into Finnish and 2) study patients’ and practitioners’ attitudes to the booklet and to evaluate if it improved patients’ understanding of LBP and practitioners’ ability to follow imaging guidelines.

Methods

We translated the booklet from English to Finnish. Preliminary evaluation of the booklet was obtained from LBP patients (n = 136) and practitioners (n = 32) using web-based questionnaires. Open-ended questions were analysed using thematic analysis.

Results

Approximately half of the patients reported that reading the booklet helped them to understand LBP, while a third thought it encouraged them to perform physical activity and decreased LBP-related fear. Eighty percent of practitioners reported that the booklet helped them to follow imaging guidelines. In addition, practitioners reported that they found the booklet helpful and that it decreased the need for imaging.

Conclusions

The booklet seemed to be helpful in LBP management and in decreasing the need for LBP imaging according to patients and practitioners. Further research on the clinical effectiveness of the booklet in controlled study settings is needed.

Trial registration

ISRCTN, ISRCTN14389368, Registered 4 April 2019 - Retrospectively registered; ISRCTN11875357, Registered 22 April 2019 - Retrospectively registered.

A national intervention to reduce imaging for low back pain by general practitioners: a retrospective economic program evaluation using Medicare Benefits Schedule data

BACKGROUND

The overuse of diagnostic imaging for low back pain (LBP) in Australia results in unnecessary cost to the health system and, for patients, avoidable exposure to radiation. The 2013 NPS MedicineWise LBP program aimed to reduce unnecessary diagnostic imaging for non-specific acute LBP in the Australian primary care setting. The LBP program delivered referral pattern feedback, a decision support tool and patient information to 19,997 (60%) of registered Australian general practitioners (GPs). This study describes the findings from evaluation of the effectiveness of the 2013 LBP program at reducing X-ray and computed tomography (CT) scans of the lower back, and the financial costs and benefits of the program to the government funder.

METHODS

The effectiveness of the 2013 LBP program was evaluated using population-based time-series analysis of administrative claims data of Medicare Benefits Schedule (MBS) funded X-ray and CT scan services of the lower back. The CT scan referral trend of non-GP health professionals was used as an observational control group in a Bayesian structural time-series model. A retrospective cost-benefit analysis and cost-effectiveness analysis was conducted using program costs from organisational records and reimbursement data from the MBS.

RESULTS

The 2013 NPS MedicineWise LBP program was associated with a statistically significant 10.85% relative reduction in the volume of CT scans of the lumbosacral region, equating to a cost reduction to the MBS of AUD$11,600,898. The best available estimate of program costs was AUD$141,154. Every dollar of funding spent on the 2013 LBP program saved AUD$82 of funding to the MBS for CT scan reimbursements. Therefore, from the perspective of the Australian Government Department of Health, the 2013 LBP program was cost saving. The program cost AUD$2.82 per CT scan averted in comparison to the scenario of no program. No association between the 2013 NPS MedicineWise LBP program and the volume of X-ray items on the MBS was observed.

CONCLUSIONS

The 2013 NPS MedicineWise LBP program reduced CT scan referral by GPs, in line with the program's messages and clinical guidelines. Reducing this low-value care produced savings to the health system that exceeded the costs of program implementation.