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Articulated AFO Product Information

Table of Contents

  • What is an articulated AFO?
  • How to place an order
  • Design Options
  • Measurements Required
  • Fabrication Instructions
  • FAQs

What is an Articulated AFOCapture-Jul-16-2026-03-59-41-3830-PM

 The articulated ankle-foot orthosis is a plastic AFO composed of a foot plate and shank with joints installed between the pieces on the medial and lateral sides of the ankle. It is used to maintain the alignment and stability of the ankle joint and control the ankle’s rotation.

Articulated AFOs are printed on the Galileo O&P machine using PC Blend, a polycarbonate filament.  

How to Order an Articulated AFO

  1. Log into FabOne, and click “Order” under the Articulated AFO (Beta) section.
  2. Attach a scan of the limb, cast, or plaster positive.
  3. Proceed to the order form to fill out the requested details.

 Design Options on the Order Form

AFO Types

  • Standard articulated AFO: full height for greater control of the limb
  • Short articulated AFO: Richie-style short shank used to control milder pathologies

Space for Footplate Padding

  • The selected amount of space is added to the footplate on the sole of the foot, not along the medial or lateral footplate surfaces. 
  • Space options are: None, 1/8”, 3/16”, or 1/4”

    Cast Corrections 

    • None
    • Correct to neutral in frontal plane: the shank and foot will be vertically aligned in the frontal plane to eliminate pronation or supination in the scan.
    • Correct to 90 degrees in sagittal plane: Correct the scan to an ankle angle of 90 degrees in the sagittal plane to eliminate dorsiflexion or plantar flexion in the scan.

    Design Additions

    • Add plantar flexion stop: Limits range of motion of the ankle to eliminate plantar flexion by adding a plastic buildup (stop) posterior to the ankle on the footplate and shank.
    • Flare proximal trimline: Flare the trimline at the proximal edge of the shank piece to reduce pressure on calf muscle and enable easier doffing.

    Heel Posting

    • None: no flat surface added
    • Neutral: flat surface added beneath the heel
    • Medial, Lateral: flat surface added distally beneath the heel and shifted in the selected medial or lateral direction

    Reliefs

    A standard depth of 2mm will be applied to the relief location. Please specify in additional information if you would like to change this value or relieve any other locations. 

    • Medial or lateral malleoli

    • Navicular

    • Base of the 5th met. 

    Joint Options

    Choose from the following joints:

    • Tamarack 740 L

    • Tamarack 740 M

    • Tamarack 742 L Dorsi-Assist 

    • Tamarack 742 M Dorsi-Assist

    • Tamarack 740 P

    • Tamarack 742 P Dorsi-Assist

     

     Required Measurements

    We will ask you for the following measurements in the order form (*required measurements):

    • Trim height*

    • Circumference at trimimage-20260715-190958

    • Malleoli circumference

    • M-L at malleoli*

    • Lateral malleolus apex height*

    • Medial malleolus apex height*

    • M-L at mets

    • Mets circumference

    Fabrication Instructions 

    Print on the Galileo O&P machine with PC Blend loaded on the small, left-side toolhead and PETG loaded on the large right-side. The wall thickness is 3.5 mm. After printing, you can continue fabrication:

    Grinding

    Break off support material on the heel of the footplate. Use 100-150 grit sandpaper to remove any residual support material. Use 400-600 grit sandpaper to smooth the trimlines. Use Tycro or silicone polishing cones to perfect the finish.

    Padding

    Apply padding where desired with any standard orthotic glue.

    Heat Modifications

    With a heat gun, material is pliable for adjustments at 70C-85C without melting.

    Chemical Modifications

    Do not use acetone. Isopropyl alcohol or Goo-gone is recommended for removing residual glue.

    FAQs