Articulated (Hinged) AFOs for Kids: How They Work and Fitting Shoes

An articulated AFO - also called a hinged AFO - has a mechanical joint at the ankle that allows controlled movement. Unlike a solid brace, it lets the ankle flex upward (dorsiflexion) while limiting or blocking the foot from dropping (plantarflexion). An orthotist may choose it for a child who has enough control to benefit from some ankle motion but still needs guidance and support.

Why allow movement

Controlled motion helps a child squat, climb stairs, rise from the floor, and develop a more natural walking pattern, while the brace still prevents foot drop and steadies the gait. It's a common choice when the goal is support without fully locking the ankle.

The fitting challenge: hinge hardware

The joints sit at the ankle and add width and hard points right where a shoe's collar wraps. So beyond the usual depth and opening, a shoe needs to clear that hardware without rubbing.

• A wide, full opening to get the hinged brace in without catching.
• Room at the ankle and heel so the joints don't press against the collar.
• Removable insoles and width options for depth and volume.

How BILLY fits a hinged AFO

The BILLY Classic D|R II is built for exactly this: it has an Achilles notch that clears the hardware at the back of a hinged AFO, plus a deeper last and removable insoles. The zip-around opening means the jointed brace never has to be forced past a collar. For more depth, the Goat works too.

Shop and learn more

Browse Kids' AFO Shoes, or read more on choosing shoes for hinged AFOs and our guide to fitting shoes over an AFO. The orthotist sets the hinge and alignment - fit shoes with the brace on.