Individualised Physiotherapy Trial Could Transform Chronic Low Back Pain Treatment in India

Can Individualised Physiotherapy Revolutionize CLBP Treatment?

A groundbreaking clinical trial is underway in India to evaluate the effectiveness of an individualised physiotherapy approach for chronic low back pain (CLBP), potentially transforming treatment paradigms in low- and middle-income countries. The randomised controlled trial (RCT) at JSS Hospital in Mysuru compares the Specific Treatment of Problems of the Spine (STOPS) approach with conventional physiotherapy in addressing one of the world's leading causes of disability.

Low back pain represents an enormous global health challenge, affecting an estimated 619 million people worldwide as of 2020. South Asia alone accounts for approximately 117 million cases, representing about 19% of the global disability burden from this condition. The prevalence is projected to increase by 36.4% globally by 2050, with low- and middle-income countries expected to bear a disproportionate share of this burden. While many episodes of acute low back pain resolve relatively quickly, chronic low back pain—defined as pain persisting beyond three months—accounts for the majority of healthcare costs and economic impact, making effective management strategies a critical research priority.

The STOPS approach, developed and previously validated in Australia, represents a significant departure from conventional physiotherapy for CLBP. Rather than applying standardised treatments, STOPS tailors interventions to each patient based on comprehensive assessment of biological, neurophysiological, and psychosocial mechanisms. This individualised approach acknowledges the complex, multifactorial nature of chronic pain and addresses the reality that treatments targeting single mechanisms are unlikely to be effective for most patients. Previous studies in Australia have demonstrated both clinical effectiveness and cost-effectiveness of the STOPS method, but this is the first time it will be implemented and evaluated in a low- or middle-income country setting.

How is the Trial Structured and Conducted?

The trial protocol, recently registered with the Clinical Trials Registry of India (CTRI/2024/08/072259), outlines a participant, outcome assessor, and data analyst-blinded, parallel-group superiority RCT. With recruitment beginning in August 2024, the study aims to enroll 154 participants with CLBP who will be randomized to receive either individualised physiotherapy based on the STOPS approach or usual physiotherapy care. The primary outcome measure is activity limitation assessed using a modified version of the Oswestry Disability Index, with evaluations at baseline and at 5, 10, 26, and 52 weeks. Secondary outcomes include pain intensity, quality of life measures, psychological parameters, work productivity, and healthcare utilization.

What Innovative Evaluations are Being Employed?

A particularly innovative aspect of this trial is its comprehensive evaluation strategy, which extends beyond traditional clinical outcome measures. A nested functional magnetic resonance imaging (fMRI) study will investigate brain-related changes in pain processing in a subset of 30 patients and 10 healthy controls. Additionally, qualitative semi-structured interviews will capture patients' subjective experiences with treatment, while a detailed cost-effectiveness analysis will determine the economic impact of implementing the STOPS approach in an Indian healthcare setting. These multiple layers of evaluation will provide a holistic understanding of the intervention's effectiveness and implementation potential.

How is the Individualised Intervention Delivered?

The STOPS intervention itself represents a sophisticated approach to physiotherapy. Following a thorough baseline assessment, patients are classified according to predominant pain mechanism (nociplastic, neuropathic, or nociceptive), diagnostic subgroup (including zygapophyseal joint dysfunction, reducible or non-reducible discogenic pain, radicular disorder, and others), and evaluation of biopsychosocial barriers to recovery. Treatment is then tailored from a comprehensive toolkit including education, goal setting, motor control training, targeted manual therapy, directional preference management, graded exercise, mindfulness strategies, and various pain management techniques. This contrasts with the usual care group, where treatment is provided at the discretion of physiotherapists following standard practice protocols.

To ensure treatment fidelity, physiotherapists delivering the STOPS intervention underwent rigorous training, including a nine-week internship in Australia with the original developers of the approach. Their preparation involved online learning modules, video tutorials, role-playing, practical examinations, and ongoing mentoring. Throughout the trial, weekly online tutorials and regular review of clinical notes will maintain adherence to the STOPS protocols. This level of preparation and monitoring is critical for ensuring that the intervention is delivered as intended, allowing for valid conclusions about its effectiveness.

What are the Broader Implications for Global CLBP Management?

The trial's findings could have profound implications for CLBP management in resource-constrained settings. Traditional physiotherapy in many low- and middle-income countries often relies heavily on electrotherapy modalities with limited evidence of effectiveness. If the STOPS approach demonstrates superior outcomes, it could provide a template for implementing evidence-based, individualised care in similar contexts globally. The cost-effectiveness analysis will be particularly important in determining whether the approach is sustainable and scalable in settings with limited healthcare resources.

Beyond its immediate clinical implications, this trial addresses important questions about the cross-cultural adaptability of complex healthcare interventions. Can an approach developed in a high-income country be effectively implemented in a different cultural and healthcare context? What modifications might be necessary to ensure its relevance and effectiveness? The qualitative component of the study will provide valuable insights into these questions, potentially informing future implementation efforts in diverse settings.

How Does the Statistical Analysis Validate the Findings?

The statistical analysis plan for the trial is robust, employing intention-to-treat principles using linear mixed-effects models to determine between-group differences at each follow-up point. The study will also explore treatment effect modifiers to identify which patient characteristics might be associated with greater benefit from individualised physiotherapy compared to usual care. Pre-specified effect modifiers include pain type, disability score, prognosis, and duration of pain. Mediation analyses will investigate whether factors such as self-efficacy and clinical signs of inflammation serve as mechanisms through which individualised physiotherapy exerts its effects. This analytical approach will provide valuable insights into not just whether the intervention works, but for whom it works best and through what mechanisms.

The trial has been carefully designed to detect a standardized mean difference of at least 0.5 between the two groups on the Oswestry Disability Index, with a significance level of 0.05 and statistical power of 0.80. This effect size aligns with findings from the previous STOPS trial in Australia and represents a clinically meaningful improvement for patients with chronic low back pain. To evaluate clinical significance beyond statistical significance, participants will also be classified based on whether they achieve minimal clinically important differences on relevant outcome measures, with differences in proportions between groups presented using risk ratios and number needed to treat.

Could This Paradigm Shift Redefine Global Practice?

Could this new approach to individualised physiotherapy represent a paradigm shift in how chronic low back pain is managed globally? What systemic changes would be required to implement such personalised approaches in healthcare systems traditionally oriented toward standardised treatments? As chronic pain continues to pose an enormous challenge to healthcare systems worldwide, innovative approaches that address its complex, multifactorial nature are urgently needed. The results of this trial, expected in 2027, may provide crucial evidence to guide clinical practice and health policy in addressing one of the most prevalent and disabling conditions globally.

Summary

A randomised controlled trial at JSS Hospital in Mysuru, India, is evaluating the Specific Treatment of Problems of the Spine (STOPS) approach—an individualised physiotherapy method for chronic low back pain (CLBP)—against conventional physiotherapy. The study, which began recruitment in August 2024, aims to enroll 154 participants and will assess outcomes including activity limitation, pain intensity, quality of life, and healthcare utilization over 52 weeks. STOPS tailors interventions to individual patients based on comprehensive assessment of biological, neurophysiological, and psychosocial mechanisms, acknowledging the complex, multifactorial nature of chronic pain. The trial incorporates innovative evaluation methods including functional magnetic resonance imaging to investigate brain-related changes in pain processing, qualitative interviews to capture patient experiences, and cost-effectiveness analysis to determine economic impact in an Indian healthcare setting. Previously validated in Australia, this represents the first implementation of STOPS in a low- or middle-income country. With chronic low back pain affecting an estimated 619 million people worldwide and prevalence projected to increase by 36.4% globally by 2050, the trial addresses a critical global health challenge. Physiotherapists delivering the STOPS intervention underwent rigorous training including a nine-week internship in Australia to ensure treatment fidelity. The statistical analysis plan employs intention-to-treat principles and will explore treatment effect modifiers to identify which patient characteristics might be associated with greater benefit. Results, expected in 2027, could have profound implications for CLBP management in resource-constrained settings and may inform the cross-cultural adaptability of complex healthcare interventions.