Cervical traction,
does it really help with Clinically meaningful improvement in pain and neck-related disability from cervical radiculopathy?
research showsThe grade is C. A seven-trial, 589-participant meta-analysis found pain MD -5.93/100 (95% CI -11.81 to -0.04), I-squared 57%, a statistically positive rather than null result. It missed the review’s prespecified 20/100 threshold, but that threshold is not a validated between-group minimal important difference for cervical traction, so conventional interpretation was used. Direct trials genuinely conflict, giving 42 points.
ads claimApplying a pulling force to the neck does not itself prove lasting pain or functional improvement. Adding traction to exercise has some longer-term disability signals, but average pain reduction was small and results varied with device, positioning, and patient selection.
Useful facts when choosing a product
- Every arm in the pivotal trial received exercise, so the estimate concerns adding traction rather than traction alone.
- Mechanical traction treatment lasted four weeks, with key comparisons reported at six and 12 months.
- A prior cervical-brace verdict concerns motion restriction, a different intervention from applying traction force.
What the research actually shows
Fritz randomized and analyzed all 86 participants: exercise 28, mechanical traction plus exercise 31, and over-door traction plus exercise 27. Mechanical traction versus exercise alone produced NDI differences of -13.3/100 at six months (95% CI -21.0 to -5.6) and -9.8 at 12 months (-19.4 to -0.2). Device company DJO LLC supported the trial. Young randomized 81 to traction, 45, or sham traction, 36; six in each group withdrew, leaving 69 followed. Both groups received manual therapy and exercise, and adjusted four-week NDI difference was about 1.5/100 (95% CI -3.8 to 6.8), a null result. Young’s funding source could not be confirmed. The seven-trial, 589-participant pain meta-analysis found MD -5.93/100 (95% CI -11.81 to -0.04), I-squared 57%.
Why this is classified as C (42)
A statistically positive but small pooled pain effect and genuine conflict between direct trials, with different comparators and time points, give C with 42 points.
Counterpoint. Meaningful benefit has not been fully excluded, so this is not a repeated-refutation grade. A prospectively defined responder subgroup requires confirmation.
Rejudgment record. Cross-check applied — The seven-trial pooled pain effect is small but statistically positive, while direct Fritz and Young results genuinely conflict across different comparators and time points
| Endpoint | P | Patient-reported treatment goal - the symptom is the goal |
| Replication | R0 | Trials conflict in direction |
| Independence | I1 | Mixed funding sources |
| Effect size | E~ | Statistically positive but below the threshold |
| Precision | C0 | The confidence interval leaves room for benefit |
The scoring table and the verdict agree (C).
Sub-claim grades by effect
This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.
| Effect (sub-claim) | Grade | Basis |
|---|---|---|
| Six-month improvement in neck-related disability | C | A manufacturer-supported 86-person trial was positive, but it is a single small result. |
| Twelve-month improvement in neck-related disability | D | The difference versus exercise alone was 9.8 points with a wide interval from 0.2 to 19.4. |
| Clinically meaningful average pain reduction | D | The seven-trial pooled difference was small at -5.93/100 with low-quality evidence. |
Cross-check — Codex and Claude
Evidence Table
| Study | Design | Sample | Funding | Endpoint | Result | Weight |
|---|---|---|---|---|---|---|
| Study 1 | Three-arm randomized clinical trial | 86 | Grant from traction-device manufacturer DJO, LLC, reported to have no role in design, interpretation, or publication | Treatment-by-time interaction and time-specific comparisons on the 0-to-100 Neck Disability Index | Mechanical traction versus exercise alone favored traction by 13.3 points at six months (95% CI 5.6 to 21.0) and 9.8 at 12 months (0.2 to 19.4) | Small positive disability trial |
| Study 2 | Systematic review, meta-analysis, and trial sequential analysis of randomized trials | 589 | Academic independent team reporting no conflicts of interest | Pain on a 0-to-100 scale for traction added to other treatment versus other treatment alone | Mean difference -5.93 (95% CI -11.81 to -0.04), P=0.05, I-squared 57%; judged not clinically meaningful | Key synthesis of overall pain effect |
Receipt — 2 References
All 2 cited sources were verified for existence at the original page (as of 2026-08-02).
Reviewed and approved: Chamgap Editorial Team · Approval date: 2026-08-02 · Corrections: none
Cite this verdict
[Chamgap] Cervical traction x pain and disability in cervical radiculopathy — Evidence Grade C·42. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/joint-bone/cervical-traction-cervical-radiculopathy-pain-disability/ · CC BY 4.0CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.
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