The chronic neuropathic pain of spinal cord injury: Which efficiency of neuropathics stimulations?

AbstractObjectiveDetermine the efficacy of spinal cord stimulation (SCS) for treating neuropathic pain in spinal cord injury (SCI) patients.Material and methodsWe proceeded with a data analysis of the French and English medical literature with the following keywords: chronic neuropathic pain, spinal cord stimulation. The quality of every selected article was analyzed according to criteria established by the French National Health Authority (HAS).ResultsEighty-three articles were read, 27 of them report clinical studies on SCS on at least one SCI patient. No article had a level of proof lower than 4.ConclusionThere is no significant level of proof to recommend the use of this technique in this indication. Conducting further studies, either physiological or clinical, could help to promote this technique with very minor adverse effects in an indication which, to this day, has no gold standard

Construction and feasibility study of the SOFMER Activity Score (SAS), a new assessment of physical and cognitive activity

International audienc

What is the place of electroneuromyographic studies in the diagnosis and management of pudendal neuralgia related to entrapment syndrome?

Entrapment of the pudendal nerve may be at the origin of chronic perineal pain. This syndrome must be diagnosed because this can result in the indication of surgical decompression of the entrapped nerve for pain relief. Electroneuromyographic (ENMG) investigation is often performed in this context, based on needle electromyography and the study of sacral reflex and pudendal nerve motor latencies. The limits of ENMG investigation, owing to various pathophysiological and technical considerations, should be known. The employed techniques do not assess directly the pathophysiological mechanisms of pain but rather correlate to structural alterations of the pudendal nerve (demyelination or axonal loss). In addition, only direct or reflex motor innervation is investigated, whereas sensory nerve conduction studies should be more sensitive to detect nerve compression. Finally, ENMG cannot differentiate entrapment from other causes of pudendal nerve lesion (stretch induced by surgical procedures, obstetrical damage, chronic constipation...). Thus, perineal ENMG has a limited sensitivity and specificity in the diagnosis of pudendal nerve entrapment syndrome and does not give direct information about pain mechanisms. Pudendal neuralgia related to nerve entrapment is mainly suspected on specific clinical features and perineal ENMG examination provides additional, but no definitive clues, for the diagnosis or the localization of the site of compression. In fact, the main value of ENMG is to assess objectively pudendal motor innervation when a surgical decompression is considered. Perineal ENMG might predict the outcome of surgery but is of no value for intraoperative monitoring