Bloqueo ciático continuo con catéter estimulador guiado mediante ecografía para tratamiento del miembro fantasma doloroso

Peripheral nerve blocks can be an alternative to intravenous and epidural analgesia in the treatment of phantom limb pain. The difficulty of localizing the sciatic nerve through neurostimulation in patients with peripheral arteriopathy and neuropathy can be increased by lower limb amputation, making it impossible to observe a motor response in the foot coinciding with localization of the nerve. In these cases, ultrasonography can become a technique for nerve localization and determine the success of analgesic strategy, since it allows nerve identification, as well as visualization in real time of the relative position of the needle and catheter with respect to the nerve and the diffusion of the local anesthetic administered. We report the case of a patient with phantom limb pain refractory to conventional treatment, in whom pain control was achieved by ultrasound-guided continuous sciatic block with stimulating catheter.