Trial reportBMC research notes2026
Impact of upper-limb aerobic exercise on the prevention of chronic postsurgical pain after total knee arthroplasty: a randomized controlled trial.
Trial report in BMC research notes, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo investigate whether adding early upper-limb aerobic exercise to usual postoperative rehabilitation reduces the incidence of chronic postsurgical pain (CPSP) at 6 months after total knee arthroplasty (TKA).
resultsEighty patients undergoing primary unilateral TKA were randomized to the intervention or control groups. Both groups received usual postoperative rehabilitation, and the intervention group additionally performed upper-limb ergometer exercise on postoperative days 2-14. The primary outcome, CPSP at 6 months, occurred at very low rates in both the intervention (2.6%) and control (2.4%) groups. The estimated risk difference was 0.1% (95% confidence interval: -12.1% to 12.8%). No significant between-group differences were observed in secondary outcomes. The effect of adding upper-limb aerobic exercise to usual rehabilitation remains inconclusive, given the extremely low event rate and wide confidence intervals. Trial registration University Hospital Medical Information Network Clinical Trials Registry (UMIN000046684), registered 20 January 2022.
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