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Updated: Mar 3, 2026

Therapy Interventions for Upper Limb Amputees Undergoing Selective Nerve Transfers
Published on: October 29, 2021
Sensory feedback add-on for upper-limb prostheses
Nader Fallahian1, Hassan Saeedi2, Hamidreza Mokhtarinia1
11 University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Background And Aim:
Sensory feedback systems have been of great interest in upper-limb prosthetics. Despite tremendous research, there are no commercial modality-matched feedback systems. This article aims to introduce the first detachable and feedback add-on option that can be attached to in-use prostheses.
Technique:
A sensory feedback system was tested on a below-elbow myoelectric prosthesis. The aim was to have the amputee grasp fragile objects without crushing while other accidental feedback sources were blocked.
Discussion:
A total of 8 successful trials (out of 10) showed that sensory feedback system decreased the amputee's visual dependency by improving awareness of his prosthesis. Sensory feedback system can be used either as post-fabrication (prosthetic add-on option) or para-fabrication (incorporated into prosthetic design). The use of these direct feedback systems can be explored with a current prosthesis before ordering new high-tech prosthesis. Clinical relevance This technical note introduces the first attach/detach-able sensory feedback system that can simply be added to in-use (myo)electric prosthesis, with no obligation to change prosthesis design or components.
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