Preliminary performance of a surgically implanted neuroprosthesis for standing and transfers--where do we stand?
نویسندگان
چکیده
This paper describes the preliminary performance of a surgically implanted neuroprosthesis for standing and transfers after spinal cord injury (SCI) in an initial group of 12 volunteers with longstanding paralysis. The CWRU/VA standing neuroprosthesis consists of an 8-channel implanted receiver-stimulator, epimysial and surgically implanted intramuscular electrodes, and a programmable wearable external controller. After reconditioning exercise and rehabilitation with the system, most individuals with paraplegia or low tetraplegia were able to stand, transfer, and release one hand from a support device to manipulate objects in the environment or to perform swing-to ambulation in a walker. The effort and assistance required for transfers were reduced for users with mid-level tetraplegia, although the maneuvers were not independent. Neuroprosthesis users with tetraplegia and paraplegia alike benefited from the improvements in their general health derived from exercise, including reduced risk of decubiti and self-reported modulation of spasticity. Stimulated responses are stable and sufficiently strong for function, and implanted components are reliable with a 90% probability of epimysial electrode survival at 4 years post-implant. The techniques employed are repeatable and teachable, and suitable for multi-center clinical trial.
منابع مشابه
Performance of a Surgically Implanted Neuroprosthesis for Standing and Transfers
The purpose of this study was to determine the clinical performance of a surgically implanted neuroprosthesis for exercise, standing and transfers in individuals with low cervical or thoracic spinal cord injury (SCI). Seven adults with long term SCI received the system, consisting of a CWRU/VA implanted receiver-stimulator (IRS-8), 8 epimysial or intramuscular electrodes and a wearable external...
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This study was completed to understand the usage patterns, system performance, degree of satisfaction, complications, and health benefits as perceived by recipients of a surgically implanted neuroprosthesis for exercise, standing, and transfers in individuals with low-cervical or thoracic spinal cord injury (SCI). A standardized telephone survey was administered to 11 recipients of the Case Wes...
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Individuals with spinal cord injury (SCI) need options for negotiating architectural barriers, completing essential transfers, and accessing items on high shelves or in cupboards that cannot be reached from the wheelchair or safely managed with reachers. Case Western Reserve University (CWRU) and the Department of Veterans Affairs (VA) have developed an assistive technology device to assist ind...
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Standing up, standing, and walking functions can be restored to people with spinal cord injury by contracting the paralyzed hip, knee, and ankle muscles with electrical stimulation. Restoring these functions using electrical stimulation requires controlled activation to provide coordinated movements. However, the stand-to-sit (STS) maneuver involves eccentric contractions of the quadriceps to c...
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عنوان ژورنال:
- Journal of rehabilitation research and development
دوره 38 6 شماره
صفحات -
تاریخ انتشار 2001