Effects of dynamic lycra orthosis as an adjunct to rehabilitation after botulinum toxin-A injection of the upper-limb in adults following stroke: A single-blinded randomized controlled pilot study

ABSTRACT

Background

Dynamic lycra splints are proposed to modify hypertonicity due to their characteristics – neutral warmth, circumferential pressure, and creating a low-intensity prolonged stretch on hypertonic muscles – to contribute to increased sensory awareness of the involved limb.

Objectives

The aim of this study was to investigate the effects of dynamic lycra orthosis as an adjunct to botulinum toxin-A injection and rehabilitation of the upper-limb in adults following stroke.

Methods

Patients who had suffered a stroke more than three months previously were randomized into two groups: lycra sleeve plus rehabilitation (n = 10) and only-rehabilitation group (n = 10). After botulinum toxin injection, both groups underwent an upper-limb rehabilitation program. The intervention group wore a lycra sleeve for eight hours a day, five days a week for three weeks in addition to the rehabilitation program. Fugl Meyer upper-limb motor score, Motricity index, Modified Ashworth scale, Box and Block test, Stroke Impact Scale and change in touch-detection thresholds of the fingers measured via Semmes-Weinstein monofilaments were assessed by blinded investigators at before treatment, post-treatment (at 3 weeks) and three months post-treatment. This trial is registered with Clinicaltrials.gov, number NCT03546959.

Results

There were no differences between groups in terms of Fugl Meyer upper-limb motor score, Motricity Index, Modified Ashworth scale, Box and Block test, Stroke Impact Scale and change in light touch threshold at any follow-up time points.

Conclusions

Using lycra splints as an adjunct to an upper-limb rehabilitation program after stroke did not provide additional benefit in spasticity, upper-limb motor function, light touch threshold of fingers or stroke-specific quality-of-life.

KEYWORDS:

• Botulinum toxin
• lycra
• orthoses
• upper limb
• rehabilitation
• stroke

Data Availability Statement

The data that support the findings of this study are available on request from the corresponding author (EG). The data are not publicly available due to their containing information that could compromise the privacy of research participants.

Additional information

Funding

There is no funding for this study.