Comparison of UNIQ and classic unipolar electrodes in TECAR therapy for low back pain: a retrospective cohort study.
Michela Giovanelli, Alessio Papaianopol
PMID 42079989WHAT IT FOUND
The combined UNIQ electrode reduced pain more than the standard two-electrode approach after two weeks of TECAR therapy for low back pain.
But this was a retrospective study with no randomisation, so it cannot prove the new electrode is better.
Key findings
01Pain improved more in the UNIQ group (ΔVAS −6.00 ± 1.50 cm) than in the standard-electrode group (ΔVAS −3.17 ± 1.85 cm), p<0.001.
02Lumbar range of motion improved more in the UNIQ group (Δ −1.75 ± 0.87°) than in the standard-electrode group (Δ −1.16 ± 1.27°), p<0.05.
03Disability scores improved more in the UNIQ group (Δ −11.47 ± 4.81) than in the standard-electrode group (Δ −5.53 ± 4.21), p<0.01.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
Retrospective design with no randomisation, so selection bias is possible and causal claims cannot be made. Height, weight, and BMI were not collected, so the groups may differ in ways that affect outcomes. Small sample (50 total) limits statistical power. The control group has substantially fewer analysed patients than the treated group for every outcome (e.g., 14 vs 25 for VAS), and the paper does not explain why. The authors describe the setting as single-centre in the Discussion, but the Methods name two clinics; either way, generalisability is limited.
Declared interests
The authors declare no conflicts of interest and state the study received no specific grant or funding. The treated group used a device made by Golden Star Srl and the control group used an INDIBA device; no relationship between the authors and either company is disclosed.
The easy way to misread this
Do not read these results as proof that the UNIQ electrode is superior to the standard two-electrode approach. The study is retrospective with no randomisation, the sample is 50 patients across two Italian clinics, and the control group has substantially fewer analysed patients than the treated group (14 versus 25 for pain, 13 versus 17 for disability). The authors themselves call this preliminary evidence to guide future trials.