Inclusion Criteria:  ISS (Injury severity score) > 15 points Patient Age > 16 Fracture of the thoracic and/ or lumbar spine Fracture of the pelvic girdle at least one AIS (abbreviated injury scale) > 2  Exclusion Criteria:  ISS < 16 points no fractures of the thoracic or lumbar spine or fractures of the pelvic girdle no AIS > 2 patient age under 16 years of age