System including an intravertebral implant and a pedicle fixation for treating a vertebral body

A system for stabilizing, reinforcing or repairing a fracture of a vertebral body, the system comprising:

• an intravertebral implant comprising an anterior end element and exactly two plates, wherein the exactly two plates are a first plate comprising a first planar bearing surface and a second plate comprising a second planar bearing surface;
• a pedicle fixation coupled to the intravertebral implant and comprising a sleeve having external threads and being hollow to define a passageway along a main axis, wherein screwing of the external threads in a pedicle is configured to control an insertion depth of the intravertebral implant within the vertebral body;
• and
• a central traction member disposed within the passageway along the main axis and rotatable relative to the sleeve of the pedicle fixation, wherein the central traction member is configured to receive a pulling input for the central traction member to cause the anterior end element to be moved towards the pedicle fixation, thereby causing expansion of the intravertebral implant by the first planar bearing surface and the second planar bearing surface being moved away from the main axis of the intravertebral implant in only a cranio-caudal expansion plane.