Les blocs du nerf pudendal à l'épine sciatique par voie transfessière améliorent plus l'électroneuromyogramme que les douleurs dans le syndrome du canal d'Alcock

Thirty patients presenting a pudendal neuralgia received a series of three transgluteal nerve blocks at 6-8 weeks interval with lidocaine and 80 mg of methylprednisolone acetate. Motor distal latency of the affected pudendal nerve improved in 94.7% of the three-block-series. However, only 73% of the patients had pain relief and no predictive factor of efficacy could be identified.