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Related Experiment Videos

Neuroprostheses for the upper extremity.

M W Keith1

  • 1Orthopedics and Biomedical Engineering, Case Western Reserve University and Cleveland FES Center, 11000 Cedar Avenue, Cleveland, OH 44106, USA.

Microsurgery
|December 18, 2001
PubMed
Summary
This summary is machine-generated.

Functional electrical stimulation (FES) neuroprostheses restore hand function in spinal cord injury patients. This technology offers rewarding outcomes, with future improvements focusing on dual-limb control and reduced external hardware.

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Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Rehabilitation Medicine

Background:

  • Functional electrical stimulation (FES) neuroprostheses aim to restore lost motor and sensory functions in individuals with neurological disorders.
  • FES technology has demonstrated safety and efficacy in restoring hand function for adults experiencing spinal cord injuries.

Purpose of the Study:

  • To evaluate the effectiveness of FES neuroprostheses in restoring upper limb function for individuals with spinal cord injuries.
  • To discuss the current state and future directions of FES technology in neuroprosthetics.

Main Methods:

  • The Freehand system utilizes an implanted receiver-stimulator, an external shoulder position sensor, and a control unit.
  • Commands are generated via voluntary movement of the contralateral shoulder, detected by the sensor.
  • Various electrode types are employed, including epimysial, intramuscular, nerve cuff, and intraneural.

Main Results:

  • Clinical outcomes, measured by improvements in impairment scales, activities of daily living, and patient satisfaction, are reported as rewarding.
  • FES neuroprostheses are considered within the broader context of upper limb reconstructive options, with voluntary tendon transfers being the preferred initial choice.

Conclusions:

  • FES neuroprostheses provide a valuable option for restoring hand function in spinal cord injury patients.
  • Future advancements aim to enhance motor function by incorporating a controllable second upper extremity and minimizing external hardware requirements.