People with complete paralysis following a spinal cord injury can regain some control over their legs with a spinal implant
Three people who were completely paralysed from the waist down due to spinal cord injuries can now walk while using wheeled walking frames or crutches for support, thanks to implants that electrically stimulate nerves in their back and legs.
Several groups have been investigating using implants to stimulate nerves of the spinal cord in people who have injured them, but most have focused on people with lesser injuries and more intact nerves. The idea is that the stimulation makes the remaining nerves more excitable and soIn the new study, the three men, who had all been injured for more than a year, had complete paralysis from the waist down. The instant results hinge on using purpose-built electrodes.at the University of Leeds, UK.
Roccati feels some sensations when the implant starts working, as does another user, but the third person in this study, who had the most severe spinal cord injury, feels no sensations, saysat the Swiss Federal Institute of Technology in Lausanne , who co-led the research with Bloch. Other previous work had used spinal implants designed for people who need relief from severe pain caused by spinal injury. But these implants aren’t powerful enough to reach all the different nerves needed for triggering the complex movement patterns required for stepping motions.NeuroRestore/Jimmy Ravier, to develop larger electrodes that could target all the nerves needed. Each person has 16 electrodes implanted, although the team wants to put 32 into future recipients.
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