Foot orthosis (FO) and ankle foot orthosis (AFO) are devices designed to support and manage foot deformities and symptoms. AFOs can be articulating or non-articulating and are made of various materials to facilitate different functionalities during daily activities. Key components of AFOs work together to stabilize the knee and ensure proper foot positioning.

1. Lower limb Orthotics

4. Foot Orthosis (FO)
Foot orthosis is boot ( shoes) that has
components like supports and wedges to manage
different foot symptoms and deformities
FO used to :-
1. Accommodate foot deformity or pressure
lessions
2. Cushion the foot
3. Alter sensory input or relieving foot pressure

8. Ankle foot orthosis (AFO)
Ankle foot orthosis is a hard brace worn on
lower leg to support ankle and foot
This keeps the ankle in neutral position during
walking and other daily activities

9. TYPES OF AFO
• AFO’s can be articulating or non- articulating
• Made of thermoplastic or Metal or metal-
plastic

10. Thermoplastic AFO
• Solid AFO
• Posterior leaf spring
• Hinged AFO
• FRO
• PTB AFO

14. PARTS
The combination of these three
components allow the plantarflexion-
knee extension couple (PF/KE) to
occur, causing a knee-extension
moment.
ANTERIOR
TIBIAL SHELL
RIGID ANKLE
FOOT PLATE
FRO has a posterior shell like solid ankle
foot
orthosis.
• Toe plate is stiff and long with slight
plantar flexion.
• Anterior shell comfortably capture the
resultant extension moment and
stabilize the knee.
FRO