Type B3 thoracic and lumbar fractures are often found in spines with previous hyperossification processes such as ankylosing spondylarthritis (AS) or diffuse idiopathic skeletal hyperostosis (DISH). They occur most frequently due to highenergy trauma in a healthy spine and as fall-related domestic injury in a spine affected by hyperossification.
Generally, they are less frequent than type B3 cervical spine fractures. In this retrospective study involving two centres, the incidence of these fractures, their characterisation, therapy and complications associated with them were investigated.