High-frequency Alternating Current Stimulation for Neurophatic Pain in Spinal Cord Injury

Inclusion Criteria: * People with spinal cord injuries of any aetiology affecting the D1 spinal cord level or lower (paraplegia) * With injury grade A, B, C, or D according to the ASIA (American Spinal Injury Association) Impairment Scale (AIS) * Time since spinal cord injury ≥ 3 months * A score of ≥ 4 points on the Dolour Neuropathique 4 (DN4) scale * Neuropathic pain at the level of the injury (within the dermatome at that level and up to three dermatomes below) and/or below the level of the injury (more than three dermatomes below) * Duration of pain ≥ 1 month * Average pain perception score ≥ 30 mm on the visual analogue scale (VAS) in the week prior to eligibility, with a daily record of 5 days (Monday to Friday) in the morning. * Be able to understand instructions and assessment tools * Agree to participate in the study and sign the informed consent form Exclusion Criteria: * Cauda equina injuries * Brain injuries or other central nervous system injuries concomitant with spinal cord injury * A value of 100 mm in any of the daily records collected in the week prior to eligibility * Having any contraindications for the application of transcutaneous electrical stimulation: cardiac pacemaker or any other implanted electrical device, epilepsy, pregnancy, active malignant tumours in the area of application of the stimulation, and wounds or skin damage in the area of stimulation * History of psychiatric illness * Major depression * Spinal cord injury caused by autolysis * …