Satisfaction with and usage of a hand neuroprosthesis

Area of Science:

• Biomedical Engineering
• Neuroscience
• Rehabilitation Medicine

Background:

• Spinal cord injuries (SCI) at the C5-C6 motor level often result in loss of hand function.
• Restoring hand grasp and release is crucial for independence and quality of life in SCI patients.
• Existing assistive technologies have limitations in providing intuitive and functional hand control.

Purpose of the Study:

• To evaluate user satisfaction, clinical impact, and usage patterns of an implantable hand neuroprosthesis.
• To assess the device's effectiveness in improving activities of daily living (ADL) and independence.
• To determine the long-term usability and patient-reported outcomes of the neuroprosthesis.

Main Methods:

• A multi-center study involving 34 participants with C5-C6 SCI.
• Participants received an implantable hand neuroprosthesis with surgically implanted components and an external controller.
• Outcomes were measured using a mailed survey with a 5-level Likert scale assessing satisfaction and impact.

Main Results:

• High user satisfaction reported, with 87% very satisfied with the neuroprosthesis.
• Significant improvements noted in activities of daily living (87%) and independence (81%).
• The device was used frequently, with a median use of 5.5 days per week, indicating good integration into daily life.

Conclusions:

• The implantable hand neuroprosthesis is a viable option for restoring hand function in individuals with SCI.
• The device demonstrates satisfactory performance, leading to enhanced independence and quality of life.
• The neuroprosthesis successfully improved users' ability to perform daily tasks and increased their overall autonomy.