Study of Phantom Limb Pain Suppression Using Neuromodulation Methods

Inclusion Criteria: * Amputation of the upper limb at the level of the forearm or upper arm, or amputation of the lower limb at the level of the lower leg or thigh. * Age between 18 and 65 years. * Duration since amputation is at least 6 months. * Presence of persistent chronic pain syndrome rated between 4 and 10 on the Visual Analog Scale (VAS). * Absence of pregnancy at the time of implantation, confirmed by a pregnancy test (for female participants only). * Signed consent to participate in the study. Exclusion Criteria: * Presence of severe somatic pathology that hinders surgical treatment and participation in the study. * Presence of psychiatric disorders (including a history of), severe depression, suicidal tendencies, or a history of suicide attempts. * Presence of severe orthopedic deformity in the limb above the level of amputation. * History of cancer. * History of epilepsy. * Complicated traumatic brain injury (TBI) or a history of stroke. * Inability to undergo electrostimulation due to other somatic pathology. * Purulent-septic pathology. * Drug addiction (including a history of). * Congenital anomaly of upper limb development. * Anomalies in the development of the central and peripheral nervous systems.