Rotational offset oval vertebral rod

摘要: A flexible connection unit for use in a spinal fixation device is provided. The includes an elongated member, such as vertebral rod, having first end portion and second opposite each other with transition extending therebetween. of the rod comprises oval shape contains or non-oval shape. major diameter shaped parallel to sagittal plane patient's body provides higher stiffness fusion resist flexion plane. perpendicular lower fusion.