What is one function of an AFO (Ankle-Foot Orthosis)?

The function of an Ankle-Foot Orthosis (AFO) is primarily to support the ankle and foot. This type of orthosis is designed to provide stability and alignment to the lower leg, ankle, and foot, which can be critical for individuals with various conditions that impair their mobility or stability.

By properly supporting the ankle joint, an AFO helps in controlling foot drop, which can occur due to muscle weakness or neurological conditions. Additionally, AFOs can aid in providing a stable base while walking, improving balance, and ensuring safer ambulation. They can also help to offload pressure from certain areas of the foot or correct malalignment, which contributes to better functional outcomes for the wearer.

Other options, such as stabilizing the upper arm, aligning the spine, or immobilizing the knee, relate to different types of orthotic devices that are specifically designed for those purposes and do not apply to an AFO. This specialization is essential for ensuring that the orthosis meets the unique needs of patients based on their specific injuries or conditions.