Safety Study of GRNOPC1 in Spinal Cord Injury

Major Inclusion Criteria: * Neurologically complete, traumatic SCI (ASIA Impairment Scale A), zone of partial preservation \< 5 levels * Last fully preserved neurological level from T-3 through T-11 * From 18 through 65 years of age at time of injury * Single spinal cord lesion * Informed consent for this protocol and the companion long term follow-up protocol must be provided and documented (i.e., signed informed consent forms) no later than 11 days following injury * Able to participate in an elective surgical procedure to inject GRNOPC1 7-14 days following SCI Major Exclusion Criteria: * SCI due to penetrating trauma * Traumatic anatomical transection or laceration of the spinal cord * Any concomitant injury or pre-existing condition that interferes with the performance, interpretation or validity of neurological examinations * Inability to communicate effectively with neurological examiner * Significant organ damage or systemic disease that would create an unacceptable risk for surgery or immunosuppression * History of any malignancy * Pregnant or nursing women * Body mass index (BMI) \> 35 or weight \> 300 lbs. * Active participation in another experimental procedure/intervention