Which AFO component is designed to limit plantarflexion?

Which AFO component is designed to limit plantarflexion?

• A. AFO: Dorsiflexion spring assist (Klenzak Joint)
• B. AFO: metal posterior stop
• C. AFO: Varus Correction strap
• D. Molded AFOs

Answer: (B)

Limiting plantarflexion is achieved with a posterior stop. This component sits at the back of the ankle and blocks the foot from moving downward beyond a set angle, providing a direct mechanical end point to plantarflexion. The dorsiflexion spring assist is meant to help bring the foot into dorsiflexion, not to limit plantarflexion specifically. A varus correction strap addresses alignment in the frontal plane, and molded AFOs describe the overall shape rather than a dedicated limiter. So the metal posterior stop is the feature designed to limit plantarflexion.

Limiting plantarflexion is achieved with a posterior stop. This component sits at the back of the ankle and blocks the foot from moving downward beyond a set angle, providing a direct mechanical end point to plantarflexion. The dorsiflexion spring assist is meant to help bring the foot into dorsiflexion, not to limit plantarflexion specifically. A varus correction strap addresses alignment in the frontal plane, and molded AFOs describe the overall shape rather than a dedicated limiter. So the metal posterior stop is the feature designed to limit plantarflexion.