[Innovative noninvasive gait-synchronized vibrotactile feedback system : "I can feel myself walking again"].

Area of Science:

• Biomedical Engineering
• Neuroscience
• Orthopedic Surgery

Background:

• Restoration of sensory information in amputees remains a significant challenge.
• Current systems are largely confined to study protocols.
• There is a need for advanced sensory feedback solutions.

Purpose of the Study:

• To present a novel noninvasive vibrotactile feedback system for lower limb amputees.
• To detail the clinical and orthopedic technical treatment pathway using this system.
• To explain the surgical procedure of Targeted Sensory Reinnervation (TSR) for enhanced sensory restoration.

Main Methods:

• A noninvasive system translating foot pressure loads into gait-synchronized vibrotactile stimulation.
• Surgical procedure: Targeted Sensory Reinnervation (TSR) involving denervation and reinnervation of residual limb skin.
• Integration of vibrotactile feedback with TSR for a comprehensive sensory interface.

Main Results:

• The system translates pressure loads into vibrotactile feedback.
• TSR creates a dedicated sensory interface on the residual limb stump.
• The combined approach aims to increase the authenticity of sensory feedback.

Conclusions:

• This article outlines a treatment pathway combining noninvasive vibrotactile feedback with TSR.
• The described methods offer a novel approach to sensory restoration after lower limb amputation.
• Further clinical application and evaluation of this integrated system are implied.