A recent comprehensive analysis published in BMJ Evidence Based Medicine has revealed that only a fraction of commonly used non-surgical and non-invasive treatments for lower back pain provide meaningful relief. According to the findings, these treatments offer only marginally better outcomes than placebos. The researchers focused on both pharmacological and non-pharmacological approaches, examining hundreds of studies conducted globally. They identified significant gaps in the quality and consistency of evidence, emphasizing the need for more robust clinical trials.
The prevalence of non-specific low back pain is widespread, affecting up to 80%–90% of individuals at some point in their lives. This condition often lacks an identifiable cause, making it challenging to determine effective treatment options. To address this issue, researchers conducted a meta-analysis of randomized placebo-controlled trials involving various treatments for non-specific low back pain. Their investigation included pharmaceutical interventions like NSAIDs and muscle relaxants as well as non-drug therapies such as exercise and spinal manipulation.
After analyzing data from over 300 trials across 44 countries, the researchers found that very few treatments demonstrated reliable efficacy. For acute low back pain, only NSAIDs showed moderate effectiveness compared to placebo. In contrast, chronic cases saw slight benefits from exercise, spinal manipulation, taping, antidepressants, and TRPV1 agonists. However, the overall impact remained modest, with most treatments failing to deliver substantial improvements.
Notably, several widely recommended treatments lacked conclusive support. For instance, exercise, steroid injections, and paracetamol proved ineffective for acute pain based on moderate-quality evidence. Similarly, anaesthetics and antibiotics did not show promise for chronic conditions. Additionally, numerous treatments—both drug-based and non-drug-based—remained inconclusive due to inconsistencies in trial design and participant numbers.
The researchers caution that many existing studies suffer from small sample sizes and variability in placebo types, which may compromise the reliability of their conclusions. Despite these limitations, they reiterate the urgent need for large-scale, high-quality trials to clarify the true potential of non-surgical treatments for low back pain.
In light of the current evidence, clinicians face challenges in providing definitive recommendations. While certain treatments exhibit marginal benefits, none have emerged as consistently transformative. Moving forward, investment in rigorous research will be critical to guide future treatment decisions and improve patient outcomes.