An exemplary implantable device may be used to strengthen and stabilize a human vertebra. The device may include a cannula and support casing. In general, the device may include various interchangeable structures within cannula and support casing. After implantation, the device remains in the vertebral body of the vertebra in order to provide support and stability. Portions of the device remains firmly anchored in the pedicle, preventing the device from shifting. Portions of the device may be additionally secured external to the vertebra to provide additional stability.
