Sacral Nerve Stimulation in Improving Bladder Function After Acute Traumatic Spinal Cord Injury

Inclusion Criteria: * Age \> 18 years * Ability to implant device less than 12 weeks post-spinal cord injury (SCI) * Presence of acute SCI at or above T12 * American Spinal Injury Association (ASIA) Scale A or B * Expectation to perform clean intermittent catheterization (CIC) personally or have caretaker perform CIC Exclusion Criteria: * Inability to perform CIC * Pre-existing SCI * Pre-existing progressive neurological disorder * Autonomic dysreflexia * Prior sacral back surgery * Posterior pelvic fracture with distortion of the sacroiliac joint * Prior urethral sphincter or bladder dysfunction * Chronic urinary tract infections prior to SCI * Pregnancy at the time of enrollment * Presence of coagulation disorder or need for anticoagulation that they cannot be stopped temporarily for procedure * Any significant co-morbidity or illness that would preclude their participation or increase the risk to them having a surgical procedure * Active untreated infection * Traumatic injury to the genitourinary system * Prior pelvic radiation, bladder cancer or other surgical procedure to the bladder that would effect baseline bladder physiology