Surgery of Dystonia

The goal of this clinical trial is to evaluate the safety and clinical outcomes of stereotactic surgery (Deep Brain Stimulation or Radiofrequency Lesioning) in patients with dystonia. The main questions it aims to answer are: * Does stereotactic surgery improve dystonia severity as measured by the Burke-Fahn-Marsden Dystonia Rating Scale - Motor (BFMDRS-M)? * Are the procedures safe, with an acceptable complication profile during follow-up? Participants will: * Undergo stereotactic surgery for dystonia (either Deep Brain Stimulation or Radiofrequency Lesioning, based on clinical indication). * Be followed postoperatively for assessment of motor function and adverse events at the first postoperative week and six months after surgery.