Abstract: A spinal orthosis comprising a torso unit, a base member secured to the torso unit, a spring biased hinge connected at a first end to the base member and connected at a second end to a sternal support, and one or more sternal pads (or plates) connected to the sternal support. The sternal pads (or plates) may be adapted to provide a posteriorly directed force based on a bias of the spring biased hinge. The spring biased hinge may include a receiving portion that can have an adjustment mechanism at a first end and a spring to provide bias for the spring biased hinge, wherein the adjustment mechanism can be moveable through the receiving portion so as to adjust the bias of the spring biased hinge.