13-year-old girl with CRPS of the right lower limb, also secondary to an ankle sprain that had occurred six months before her arrival at the unit. The approach was to place an octopolar electrode (Octrode) in the posterior medullary cords at T9-T12 level under general anaesthesia in the operating theatre and connect to an external electrical impulse generator. Once recovered from anaesthesia, programming of the system was carried out with very good localisation of the paraesthesias over the affected area. It was reviewed a week later in the unit, observing a good response to both pain and oedema and other signs. It was reviewed again a week later, in which it was verified that the pain and allodynia control situation had been maintained, which had allowed the patient to start the rehabilitation exercises that she had had to suspend due to the severe pain that the mobilisation of the limb triggered. In view of this situation, and in agreement with the parents, it was decided to connect the patient, in the operating theatre and under general anaesthesia, to a Genesis programmable electrical impulse generator.
The patient was evaluated 15 and 30 days after the implantation of the generator, and continued in the same situation of pain relief and accompanying symptomatology. Six months later, the patient came to the Unit for consultation, with pain relief and the rest of the symptoms still being maintained, the allodynia and a large part of the oedema and the rest of the accompanying symptoms having disappeared, the patient could now support her foot and continued with rehabilitation, and the family informed us that they had not used the generator for two months and had kept it disconnected, and neither the pain nor the accompanying symptoms had appeared.
In view of this situation, it was decided to review the patient within four weeks, continuing with the rehabilitation exercises during that time. The patient was evaluated four weeks later and in view of the persistence of the previous situation, it was decided, by mutual agreement with the family, to explant both the generator and the spinal cord electrode, which was done again in the operating theatre under general anaesthesia. The patient is currently asymptomatic and continues to lead a normal life.

