Dorsal Root Ganglion Stimulation After Lower Motor Neuron Damage

Inclusion Criteria: * Traumatic and non-traumatic spinal cord injury (SCI) * ASIA Impairment Scale (AIS) A-D * SCI below the tenth thoracic vertebral level * Greater than 1 year post-SCI * Intact spinal reflexes at or below injury level in 1 or more muscles Exclusion Criteria: * Currently a prison inmate, or awaiting trial, related to criminal activity * Pregnancy at the time of screening for trial enrollment * Active, untreated urinary tract infection * Unhealed decubitus ulcer * Unhealed skeletal fracture * Spinal abnormality that may impede percutaneous implantation of spinal electrodes * Untreated clinical diagnosis of psychiatric disorder * Joint contractures that impede typical range of motion * Non-MRI-compatible implanted medical devices * Other implanted stimulation devices (e.g., deep brain stimulator, cardiac pacemaker, diaphragmatic pacer, etc.) * Active participation in an interventional clinical trial which, based on the research team's assessment, may compromise protocol compliance, safety, and/or validity of data collected during this study * History of clinically diagnosed cardiopulmonary disorder, such as severe orthostatic hypotension, which may impede participation in rehabilitation activities such as changes in body position such as supine-to-sit-to-stand activities, prolonged standing, or stepping * History of frequent and/or severe autonomic dysreflexia * History of seizure disorder * Any illness or condition which, based on the research team's assessment, will compromise with the patient's ability to comply with the protocol, patient safety, or the validity of the data collected during this study