Botulinum toxin A combining with robot-assisted bimanual therapy integrating mirror therapy versus botulinum toxin A combining with robot-assisted bimanual therapy in patients with post-stroke spastic fingers: a randomized controlled pilot trial.
Jen-Wen Hung, Yi Ju Chen, Wen-Chi Wu and 5 others
PMID 41152923WHAT IT FOUND
Adding mirror therapy to robot-assisted hand training after Botox injections improved finger movement more than robot training alone.
Both groups gained function, but the mirror group saw larger gains in distal hand control, suggesting a stronger sensory feedback loop helps recovery.
Key findings
01The group receiving robot-assisted bimanual therapy with mirror therapy showed significantly greater improvement in distal upper extremity motor function compared to the robot-only group.
02Both treatment groups improved in upper extremity function and reduced spasticity, with gains maintained at 3-month follow-up for the mirror therapy group.
03Eighty percent of patients in the mirror therapy group achieved the minimal clinically important difference in total upper extremity function, compared to fifty percent in the robot-only group.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
This was a pilot study with a small sample size (29 participants) and no pre-study power calculation, meaning it may not have been large enough to detect all significant differences between groups. There was no control group receiving botulinum toxin alone, so the specific contribution of the robot or mirror therapy versus the injection itself cannot be isolated. The botulinum toxin doses and injected muscles were individualized based on clinical judgment, which introduces variability. Participants had moderate to severe upper extremity impairment, so results may not generalize to those with mild impairment or fixed contractures.
Declared interests
The authors declare no competing interests.
The easy way to misread this
Do not assume mirror therapy is superior to robot therapy alone for all stroke patients. The benefit was specific to distal hand function in patients who had already received botulinum toxin injections for spasticity. The study was a pilot with a small sample, so these findings require confirmation in larger trials.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →