Inclusion Criteria:  Age ≥16 years Severe cervical (C2 - T1) traumatic spinal cord injury (AIS grade A-C) Deemed to require and be suitable for surgery that includes laminectomy by local surgeon Surgery within 72 hours of traumatic spinal cord injury Able to provide informed consent or consultee declaration or proxy consent.  Exclusion Criteria:  Dural tear due to traumatic spinal cord injury Life-limiting or rehabilitation-restricting co-morbidities Thoracic or lumbar traumatic spinal cord injury Other central nervous system disease