Process and device for treating vertebral bodies

The invention concerns a process for treating of vertebral body with the following steps: introducing a trocar and a trocar jacket into the vertebral body, removing the trocar, introducing the same or a different biopsy and cement cannula into the trocar jacket, extracting spongiosa into the biopsy and cement cannula, removing the biopsy and cement cannula, filling a biopsy and cement cannula with contact cement, introducing the biopsy and cement cannula into the trocar jacket, and introducing the bone cement into the vertebral body by introduction of a plunger into the biopsy and cement cannula. The invention further concerns a device for treatment of vertebral bodies with at least one biopsy and cement cannula, which are fillable with bone cement, and a plunger, which is introducible into the biopsy and cement cannula, in order to expel bone cement out of the biopsy and cement cannula.