Inclusion Criteria:  Diagnosed Parkinson´s Disease with Hoehn Yahr scale between 2,5 and 4,0 Main complaint of balance or freezing of gait Score of 2 or more on subitem 3.11 of the MDS UPDRS scale concerning Freezing of Gait severity. Capable of informed consent  Exclusion Criteria:  Frequent lower limb, lower back or hip pain scoring 3 or more on visual analog scale Uncontrolled or serious comorbidities such as uncontrolled diabetes mellitus, renal disease, anticoagulation, immunosuppression or other medical conditions that present a contraindication for SCS surgery Psychosis, uncontrolled depression (BDI >14) or anxiety disorder (BAI >14)