Abstract: A cruciform anterior spinal hyperextension orthosis has a rigid cruciform base. The base includes an elongated upright and a crossarm secured to the upright. The crossarm has a pair of oppositely extending ends with a side pad on each end. The upright has a upper end and an opposed lower end. A pubic pad is connected to the lower end of the upright. A pair of spaced apart pectoral pads is pivotally connected to the upper end of the upright.