A lumbar-sacral orthosis comprises in combination a first lateral belt portion having a dorsal end portion having two substantially parallel horizontally extending upper and lower slots, the first lateral belt portion having a third slot, a second lateral belt portion having a dorsal end portion having two substantially parallel horizontally extending upper and lower slots, the first lateral belt portion substantially parallel horizontally extending upper and lower slots and the second lateral belt portion substantially parallel horizontally extending upper and lower slots being substantially aligned, a central dorsal portion, the central dorsal portion attached to the first and second lateral belt portions by an upper pin extending from the central dorsal portion through the upper slots, and a lower pin extending from the central dorsal portion through the lower slots, such that the first and second lateral belt portions may be moved with respect to one another.
