Abstract
Spinal Cord (SC) Anatomy is often assimilated to a morphological entity, but its functional anatomy remains poorly understood. We hypothesized that using “super-selective” Spinal Cord Stimulation (SCS), it could be possible to reexplore SC neural networks by performing live electrostimulation mapping. We initiated a systematic lead programming approach on a chronic refractory perineal pain patient, previously implanted with multicolumn SCS at the level of the conus medullaris (T12-L1). It appeared possible: (1) to achieve paresthesia generation and optimized coverage of this patient perineal dermatoma, more selectively than with conventional SCS; (2) to (re)explore the classical anatomy of the conus medullaris using statistical correlations of paresthesia coverage mappings, resulting from 165 different electrical configurations tested.
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