A randomized controlled trial of an implantable 2-channel peroneal nerve stimulator on walking speed and activity in poststroke hemiplegia

Anke I. Kottink, Hermie J. Hermens, Anand V. Nene, Martin J. Tenniglo, Hans E. van der Aa, Hendrik P. Buschman, Maarten J. IJzerman

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117 Citations (Scopus)

Abstract

Objective: To determine the effect of a new implantable 2-channel peroneal nerve stimulator on walking speed and daily activities, in comparison with the usual treatment in chronic stroke survivors with a drop foot.DesignRandomized controlled trial.

Setting: All subjects were measured 5 times in the gait laboratory.

Participants: Twenty-nine stroke survivors with chronic hemiplegia with drop foot who fulfill the predefined inclusion and exclusion criteria were included in the study.

Intervention: The intervention group received an implantable 2-channel peroneal nerve stimulator for correction of their drop foot. The control group continued using their conventional walking device, consisting of an ankle-foot orthosis, orthopedic shoes, or no device.

Main Outcome Measures: Walking speed, assessed both by a six-minute walk test (6MWT) and by using a 10-m walkway, was selected as primary outcome measure and activity monitoring data, consisting of percentage time spent on stepping, standing, and sitting/lying were selected as secondary outcome measure.

Results: Functional electric stimulation (FES) resulted in a 23% improvement of walking speed measured with the 6MWT, whereas the improvement in the control group was only 3% (P=.010). Comfortable walking speed measured on a 10-m walkway was also significantly improved in favor of FES (P=.038). The percentage time spent on stepping deteriorated with 3% in the intervention and 0.8% in control group, which was not statistically significant between both groups (P=.13).

Conclusions: The present study shows a clinically relevant effect of the implantable 2-channel peroneal nerve stimulator on walking speed in the sample of stroke survivors included in our study.
Original languageEnglish
Pages (from-to)971-978
Number of pages8
JournalArchives of physical medicine and rehabilitation
Volume88
DOIs
Publication statusPublished - Aug 2007

Keywords

  • BSS-Electrical Neurostimulation

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