Back orthosis and orthotic method

A back orthosis comprising:

• a separate, laterally adjustable, rigid lumbar compression piece configured for self-adjustable positioning only at the rear of a wearer;
• twin opposing rigid panels for immobile placement upon opposing lateral sides of a spinal region of the wearer;
• a front abdominal piece, configured for immobile positioning upon an anterior side of the wearer;
• and
• at least two independent cinching systems, at least two of which are on opposing lateral sides of the separate, laterally adjustable, rigid lumbar compression piece configured for positioning only at the rear of the wearer, each providing a mechanical advantage for circumferentially tightening of the orthosis and applying a relatively greater force than a circumferential force specifically to four points of the wearer's torso;
• wherein the rigid lumbar compression piece and twin rear immobile rigid panels direct pressure radial to the wearer's spine;
• and
• wherein three of the four points are immobile while the forth point is laterally movable about a posterior lumbar side of the wearer, and the separate, laterally adjustable, rigid lumbar compression piece addresses the forth point of the wearer's torso.

A back orthosis, comprising:

• first and second, separate, opposing and mating front attachment panels;
• and
• a separate, laterally adjustable, rigid lumbar compression piece configured for positioning only at the rear of a wearer and having:
• opposing lateral sides, one such side connected along substantially its entire vertical length to the first, separate, opposing and mating front attachment panel by a cord, and the other such side connected along substantially its entire vertical length to the second, separate, opposing and mating front attachment panel by another cord or an elastic piece;
• a first set of apertures through which the cord passes and is operatively pulled or allowed to retract, respectively either to draw the one such side laterally closer to the first, separate, opposing and mating front attachment panel or to distance the one such side laterally further from the first, separate, opposing and mating front attachment panel;
• wherein pulling of the cord causes the brace both circumferentially to tighten and to concentrate compression of the separate, laterally adjustable, rigid lumbar compression piece directly and especially upon a spinal region of a wearer's back with the aid of a mechanical advantage dependant upon a number of apertures through which the cord or the another cord passes.