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Spinal cord movements are a clinical challenge with existing SCS therapies.
Spinal cord movements result in varying zones of neural activation
Molnar C et al, 2009
  • In SCS therapy, as the electrode scars in place, it is fixed in the epidural space. During posture change, the spinal cord will move closer to, or further away from, the fixed electrode
     
  • To model the impact of this movement in SCS therapy, a study using coupled electric field and neuron computer models was performed
     
  • This work showed that spinal cord movements affect the size of the stimulated area. When the spinal cord is close to the electrode (supine), the stimulated area is significantly larger than when the spinal cord is away from the electrode (prone)
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