The NCTT is a prospective, multicenter, observational research network for subjects with chronic spinal cord and/or chronic traumatic brain injury.

Current treatment for Spinal Cord Injury and Traumatic Brain Injury focuses on stabilizing the patient and preventing secondary injury with the aim of maximizing the best chance of recovery. Most patients will show varying amounts of recovery, but, when the injury is severe, that recovery is only partial. Enrollment in the NCTT will allow for classification and characterization of injury, function, co-morbidities, secondary issues/problems, research interests and will serve as a conduit for enrollment into interventional studies.

Inclusion Criteria:

• History of spinal cord injury and/or brain injury
• Able to provide HIPAA authorization to share prior medical records/imaging
• Age 18 and older.

Exclusion Criteria:

• Life expectancy less than 6 months, vegetative state or co-existing disease or other characteristic that precludes appropriate diagnosis of spinal cord or brain injury.
• Other condition that, in the opinion of the site investigator, would interfere with adherence to study requirements.
• Inability or unwillingness of subject or legal guardian/representative to give informed consent (e.g., ward of the state).

Chronic spinal cord and traumatic brain injury patients, family members, and healthy vounteers

IPD data will not be freely available. Participating centers will share data.