An orthotic device comprising a plurality of posterior dynamic struts and a posterior multiple strut engager, wherein the plurality of posterior dynamic struts comprises a first posterior dynamic strut and one or more additional posterior dynamic struts, and wherein the posterior multiple strut engager is affixed to the first posterior dynamic strut and is adapted to restrain the movement of said one or more additional posterior dynamic struts, and wherein the posterior multiple strut engager may be adjusted to engage said one or more additional posterior dynamic struts in combination with the first posterior dynamic strut, thereby forming a single posterior dynamic strut assembly of greater rigidity than the first posterior dynamic strut alone.
