Author/Editor		Rozman, J; Sovinec, B; Aćimović-Janežič, R; Tekavčič, I; Pangršič, B
Title		Implantable stimulator for selective stimulation of the common peroneal nerve
Type		članek
Source		In: Jaeger R, Bajd T, editors. Proceedings of the Ljubljana FES conference; 1993 Aug 22-25; Ljubljana. Ljubljana: Slovenian society of medical and biological engineering,
Publication year		1993
Volume		str. 45-8
Language		eng
Abstract		We present the modelling, design, and experimental testing of an implantable system with a monopolar semi-cuff electrode for selective stimulation of fibres within certain superficial regions of the human common peroneal nerve which is capable of making a selective activation of muscles, that contributing to strong dorsal tlexion and moderate eversion of the hemiplegic foot. The modelling objectives were to determine the electric held that would be generated within the deep peroneal branch of the common peroneal nerve by the monopolar semi-cuff electrode installed behind the lateral head of the fibula. In implantations on two hemiplegic patients the objective was to characterize the effectiveness of the semi-cuff system in monopolar selective stimulation of the superfcial regions innervating mostly the tibialis anterior muscle as well as one of the peroneus longus muscles to a moderate degree and triceps surae muscle to a minor degree. In both patients significant improvements of gait dynamics were observed. Ankle angle at the beginning of the stance phase was corrected from 10 degrees of plantar without stimulation to 10 degrees of dorsal flexion with stimulation.
Descriptors		HEMIPLEGIA PERONEAL NERVE ELECTRIC STIMULATION GAIT IMPLANTS, ARTIFICIAL ORTHOTIC DEVICES