The sophisticated DDA (Dynamic Dorsi-Assist) Orthosis is designed to dynamically stretch the gastroc muscles and offsetting equinus contracturing. The use of a series of posterior articulations allows for patient ambulation with a virtually unrestricted range of plantar or dorsi flexion. The orthosis provides nearly unlimited inversion or eversion of the ankle/foot complex. The AFO incorporates two elastic straps attached to the distal foot section and proximal calf section. These straps can be adjusted to compensate and/or offset varus and valgus tendencies while maintaining constant dorsi-assistive force. An important telescoping calf section feature enables shortening or lengthening of the soft tissue/musculature; this feature can be locked out if applicable. Excellent choice for personal and professional care and treatment.