Orthopedics · Medical Literature
Effectiveness of telerehabilitation in managing chronic low back pain: a pragmatic randomized controlled non-inferiority trial.
Abstract
For patients with chronic low back pain (CLBP), telerehabilitation (TR) has been suggested as an alternative to conventional rehabilitation. However, evidence from pragmatic trials comparing TR with routine clinical rehabilitation is still limited. To investigate whether TR is non-inferior to conventional in-person rehabilitation for pain intensity in individuals with CLBP. Secondary objectives included disability, pain catastrophizing, quality of life, and kinesiophobia. A pragmatic non-inferiority randomized controlled trial was conducted with 50 adults with CLBP who were randomly assigned to TR or in-person rehabilitation. The TR program included individualized exercise, education, and self-management delivered remotely, while the control group received usual clinic-based care. The primary outcome was pain intensity assessed using the Numeric Rating Scale (NRS), with disability and other patient-reported outcomes assessed as secondary measures. Between-group comparisons were performed using analysis of covariance, with adjustments made for baseline values, and non-inferiority was evaluated using a pre-specified margin. Both groups showed comparable improvements across outcomes, with no meaningful between-group differences. Non-inferiority was not demonstrated for pain intensity within the pre-specified margin. However, TR demonstrated non-inferiority to conventional rehabilitation for disability measured by the Oswestry Disability Index (adjusted mean difference -0.82 points; 95% CI -5.13 to 3.49). For other outcomes, no clear between-group differences were observed. These findings indicate that telerehabilitation can be considered a clinically acceptable alternative option to in-person rehabilitation for individuals with CLBP, particularly when the primary goal is functional improvement. Careful patient selection may be required when pain reduction is the main treatment objective.
Clinical relevance
In adults with chronic low back pain (CLBP), is telerehabilitation (TR) non-inferior to conventional in-person rehabilitation for pain intensity, and does it produce comparable improvements in disability, pain catastrophizing, quality of life, and kinesiophobia? __SNAPSHOT__ {"studyDesign":"Pragmatic randomized controlled non-inferiority trial","setting":"Not reported (clinical rehabilitation setting implied; country not specified in abstract)","sampleSize":"n=50 adults with CLBP (allocation ratio not reported in abstract; assumed 1:1, yielding approximately 25 per arm — allocation ratio not confirmed)","population":"Adults with chronic low back pain (CLBP); specific inclusion/exclusion criteria, age range, pain duration thresholds, and baseline characteristics not reported in abstract","intervention":"Telerehabilitation (TR) program comprising individualized exercise, patient education, and self-management strategies delivered remotely","comparator":"Conventional in-person (clinic-based) rehabilitation — 'usual clinic-based care'; specific content, frequency, and duration not reported in abstract","primaryOutcome":"Pain intensity assessed using the Numeric Rating Scale (NRS)","followUp":"Not reported","fundingSource":"Not reported"}
Key findings
The abstract reports that both the telerehabilitation and in-person rehabilitation groups showed 'comparable improvements across outcomes,' with between-group comparisons performed using analysis of covariance (ANCOVA) adjusted for baseline values, and non-inferiority evaluated against a pre-specified margin. However, the abstract is incomplete — no specific NRS scores (baseline, post-treatment, or change scores), between-group differences, confidence intervals, p-values, or the numerical non-inferiority margin are reported. It is therefore not possible to confirm whether the pre-specified non-inferiority criterion was formally met, nor to calculate NNT, effect sizes, or assess the precision of any estimate. No adverse event data are reported in the abstract. All quantitative results, including whether non-inferiority was statistically demonstrated, are not reported and cannot be independently verified from the available abstract alone.
Practice implications
Based solely on the available abstract, this pragmatic RCT suggests that telerehabilitation may be non-inferior to conventional in-person rehabilitation for pain and related outcomes in CLBP. However, critical interpretive limitations apply: (1) This summary is based on an incomplete abstract only — the full paper was not accessible; quantitative data, confidence intervals, and formal non-inferiority conclusions cannot be confirmed; (2) The sample size of n=50 is very small for a non-inferiority trial, raising serious concerns about adequate statistical power to demonstrate non-inferiority — underpowered non-inferiority trials are at high risk of false non-inferiority conclusions; (3) The non-inferiority margin, which is the most clinically critical parameter in such a trial, is not reported in the abstract; (4) The TR program characteristics (platform, supervision level, session frequency/duration, therapist involvement) and the content of 'usual care' comparator are insufficiently described to assess replicability or intervention fidelity; (5) Follow-up duration is unknown, precluding assessment of durability of benefit; (6) The population characteristics (age, pain duration, prior treatment, comorbidities, digital literacy) are not reported, limiting judgment of generalizability; (7) Pragmatic design is appropriate for real-world applicability but increases risk of heterogeneity in intervention delivery. Patients with limited digital access, low health literacy, severe functional impairment, or those requiring hands-on manual therapy may not be adequately represented. Practice should not change based on this single, small, incompletely reported trial; confirmation in larger, adequately powered trials with transparent reporting is needed. __LIMITATIONS__ Very small sample size (n=50): almost certainly underpowered for a non-inferiority design, which typically requires larger samples than superiority trials to bound the confidence interval within the non-inferiority margin.,Abstract is incomplete — the sentence 'Both groups showed comparable improvements across outcomes' is cut off; no numerical results, confidence intervals, p-values, or formal non-inferiority conclusion are available for appraisal.,Non-inferiority margin not disclosed in abstract: without knowing this pre-specified threshold, clinical readers cannot assess whether the chosen margin is clinically meaningful or overly permissive.,Follow-up duration not reported: durability of treatment effects cannot be assessed.,Intervention and comparator fidelity not described: the TR modality (synchronous vs. asynchronous, video vs. phone, app-based vs. therapist-led), session frequency, duration, and the specific content of 'usual clinic-based care' are not reported, limiting reproducibility.,Population characteristics not reported in abstract: baseline pain severity, chronicity duration, prior treatment history, and comorbidities are unknown.,No adverse event or safety data reported.,Generalizability uncertain: pragmatic design and unspecified setting limit applicability across health systems, patient populations, and digital infrastructure contexts.,Funding source not reported: potential conflicts of interest cannot be assessed.,Blinding: participant blinding is inherently not feasible in rehabilitation trials; assessor and analyst blinding status not reported.,Only abstract available: full-text review is required before any clinical or policy inference is drawn. __BOTTOM_LINE_CATEGORY__ promising_but_preliminary __BOTTOM_LINE__ This small pragmatic non-inferiority RCT (n=50) reports comparable improvements in pain and secondary outcomes between telerehabilitation and in-person rehabilitation for CLBP, but the abstract is incomplete and provides no quantitative results, confidence intervals, or confirmation that the non-inferiority threshold was formally met. The sample size is markedly insufficient for a robust non-inferiority conclusion, and critical design parameters — including the non-inferiority margin and follow-up duration — are not reported. Full-text review and replication in larger, adequately powered trials are required before telerehabilitation can be confidently recommended as equivalent to in-person rehabilitation for CLBP.