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Therapeutic knee-ankle-foot orthoses (KAFO) designed for external modification of the structural and/or functional characteristics of the knee and ankle joints and foot of infants (typically before three years of age) with bowed legs. These orthoses use static braces and provide support and permit a limited range of movement to the joints. These orthoses usually consist of an ankle foot brace, including a foot plate, a medial metal upright bar, an orthotic knee (e.g., locked or drop-lock) joint, and thigh straps. Braces used for treatment of infant bowleg are intended for patients with moderate progressive bowing disorder due to abnormal growth of the tibia (known as tibia vara or Blount disease).
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