Ankle Orthosis and Ankle Joints
An ankle orthosis is an externally applied device used to restore the structural and functional characteristics of the neuromuscular and skeletal systems — in this case the ankle joint. The range covers modular joints, uprights, stirrups and complete AFO kits.
- Modular integrated ankle joint — sold in pairs, square bar slot for easy fabrication
- Integrated ankle joint — double action, dorsiflexion assist, adjustable range of motion
- Bars and stirrups — four-piece kits in aluminum and stainless steel, bar slots 12, 16 and 19 mm
- Split tail stirrups and solid stirrups with wide tongue or long tongue — 20 cm child length and adult versions
- Short leg upright — sold individually, limited or free motion, toe pick-up, double action, stainless steel
- Adjustable stops allow movement from 0 to 30 degrees in both directions
- Insert stirrup for plastic orthotics; Polycar-C ankle insert, precut, sizes small to large
- Universal ankle joint pair with fabrication kit; PDC, PDA and dorsiflexion assist ankle joint kits with Polycar-C
- AFO — ankle foot orthosis, dynamic walk standard
- Warranty 12 months across the range
Description
Modular Integrated Ankle Joint
• Sold in pairs • Square bar slot for easy fabrication • Warranty: 12 months
Double Action square slot
| Code | Material | Bar Slot |
| 18.002.001 | Stainless steel | 12 mm |
| 18.002.002 | Stainless steel | 16 mm |
| 18.002.003 | Stainless steel | 19 mm |
| 18.002.007 | Aluminum alloy | 12 mm |
| 18.002.008 | Aluminum alloy | 16 mm |
| 18.002.009 | Aluminum alloy | 19 mm |
Adjustable range of motion square slot
| Code | Material | Bar Slot |
| 18.002.004 | Stainless steel | 12 mm |
| 18.002.005 | Stainless steel | 16 mm |
| 18.002.006 | Stainless steel | 19 mm |
| 18.002.010 | Aluminum alloy | 12 mm |
| 18.002.011 | Aluminum alloy | 16 mm |
| 18.002.012 | Aluminum alloy | 19 mm |
Integrated Ankle Joint
• Sold in pairs • Square bar slot for easy fabrication • Warranty: 12 months
Double Action
| Code | Material | Size |
| 18.002.013 | Aluminum alloy | Small |
| 18.002.014 | Aluminum alloy | Medium |
| 18.002.015 | Aluminum alloy | Large |
Dorsiflexion assist
| Code | Material | Size |
| 18.002.016 | Aluminum alloy | Small |
| 18.002.017 | Aluminum alloy | Medium |
| 18.002.018 | Aluminum alloy | Large |
Adjustable range of motion
| Code | Material | Size |
| 18.002.019 | Aluminum alloy | Small |
| 18.002.020 | Aluminum alloy | Large |
Bars and stirrups
Warranty: 12 months
Bars – Comes in a four-piece kit
Material: Aluminum
| Code | Length | Dimension |
| 18.002.021 | 1.83 | 5 x 12 mm |
| 18.002.022 | 1.83 | 5 x 16 mm |
| 18.002.023 | 1.83 | 5 x 19 mm |
Split Tail Stirrups
Double Action
| Code | Size |
| 18.002.024 | Small |
| 18.002.025 | Medium |
| 18.002.026 | Large |
Solid Stirrups – Wide Tongue
• 20 cm child length
• Adult version available
| Code | Small Length | Large Length |
| 18.002.028 | – | 20 cm |
| 18.002.029 | – | 24 cm |
| 18.002.030 | 20 cm | 26 cm |
| 18.002.031 | – | 28 cm |
Short Leg Upright
Sold individually • Warranty: 12 months
Limited/Free Motion
Material: Aluminum
| Code | Type | Size | Size |
| 18.002.033 | Limited Motion | Medium | 31.8 cm |
| 18.002.034 | Limited Motion | Large | 43 cm |
| 18.002.035 | Free Motion | Small | 21.6 cm |
| 18.002.036 | Free Motion | Medium | 31.8 cm |
| 18.002.037 | Free Motion | Large | 43 cm |
Toe Pick-Up/Double
Material: Aluminum
| Code | Type | Size | Size |
| 18.002.038 | Toe Pick Up | Small Right | 21.6 cm |
| 18.002.039 | Toe Pick Up | Small Left | 21.6 cm |
| 18.002.040 | Toe Pick Up | Medium Right | 31.8 cm |
| 18.002.041 | Toe Pick Up | Medium Left | 31.8 cm |
| 18.002.042 | Toe Pick Up | Large Right | 43 cm |
| 18.002.043 | Toe Pick Up | Large Left | 43 cm |
Toe Pick-Up/Double
Material: Aluminum
| Code | Type | Size | Size |
| 18.002.044 | Double Action | Large |
40.6 cm |
Ankle joint
Sold individually • Warranty: 12 months
Limited/Free Motion
Material: Stainless Steel
| Code | Type | Size |
| 18.002.045 | Limited Motion | 19 mm bar slot |
| 18.002.046 | Free Motion | 19 mm bar slot |
Toe Pick Up
Material: Stainless Steel
| Code | Type | Size |
| 18.002.047 | Toe Pick Up Right | 16 mm bar slot |
| 18.002.048 | Toe Pick Up Left | 16 mm bar slot |
Double Action
Material: Stainless Steel
| Code | Type | Size |
| 18.002.049 | Double Action | 19 mm channel |
| 18.002.050 | Double Action W/Positioning Pins | 19 mm channel |
Material: Stainless Steel
| Code | Type | Size |
| 18.002.049.k | For children
Adjustable stops allow movement from 0° to 30° in both direction |
Thickness 6 mm |
Limited motion
Sold individually • Has an opening for a 16 mm wide bar • Warranty: 12 months
Free motion Stirrups standard
Material: Stainless Steel
| Code | Type |
| 18.002.062 | Large 222 mm |
| 18.002.063 | Large 241 mm |
| 18.002.064 | Large 260 mm |
Free motion Stirrup-Long tongue
Material: Stainless Steel
| Code | Type |
| 18.002.065 | Large 222 mm |
| 18.002.066 | Large 241 mm |
| 18.002.067 | Large 260 mm |
Free motion Stirrup-Wide tongue
Material: Stainless Steel
| Code | Type |
| 18.002.068 | Large 222 mm |
| 18.002.069 | Large 241 mm |
| 18.002.070 | Large 260 mm |
Inserts
Warranty: 12 months
Limited Motion / Free motion Stirrup split
• Sold individually
Material: Stainless Steel
| Code | Type | Dimension |
| 18.002.071 | Small | 2.4 x 12 mm |
| 18.002.073 | Medium | 3.1 x 12 mm |
| 18.002.074 | Medium | 3.1 x 16 mm |
| 18.002.075 | Medium | 3.1 x 17 mm |
| 18.002.076 | Large | 3.1 x 16 mm |
| 18.002.077 | Large | 3.1 x 19 mm |
| 18.002.078 | Large | 3.1 x 22 mm |
Insert stirrup for plastic orthotics-Double action
• Sold in pair
Material: Stainless Steel
| Code | Type | Dimension |
| 18.002.083 | Large | 222 mm |
| 18.002.084 | Large | 241 mm |
PolyCar-C Ankle Inserts
High-performance reinforced composite (Heating temp. 175°C – 200°C) Thermobonds to polypropylene, copolymer, and metal
| Code | Type | Code |
| 18.002.093 | Small | 1.5 mm |
| 18.002.094 | Medium | 2.3 mm |
| 18.002.095 | Large | 2.3 mm |
| 18.002.096 | X Large | 3.2 mm |
Kits
Warranty 12 months
Universal Ankle joint pair w/fabrication kit
Smooth Plantar/dorsiflexion action.
Adjustable calcaneal inversion/eversion after fabrication.
AFO design can also create a plantar stop.
• Joints (pair)
• PolyCar-C (2pcs)
• Alignment rod
| Code | 18.002.097 |
PDC Ankle Joints Kits With PolyCar-C
Plantar/dorsiflexion control 82kg weight limit
Indicated for conditions requiring ankle positioning.
Aluminum head, stainless steel, stirrup, right.
• Screw 10-32 x 3/4”, SHSS,SS,4ea.
• Joint nut, 2 ea.
• Double action stirrup insert, 2ea.
• Allen Wrench, 3/23”
• Screw 10-32×1/4”, truss HD,S.S, 2ea.
| Code | 18.002.099 |
| Code | Size |
| 18.002.100 | Precut PolyCar-C, Large |
| 18.002.101 | Ankle joint Head W/o stirrup |
Dorsiflexion assist ankle joint kits
Warranty 12 months
With PolyCar-C
82kg weight limit
Indicated for conditions requiring toe lift
Aluminum head, stainless steel, stirrup
| Code | 18.002.102 |
• Dorsiflexion ankle joint body, right and left
• AFO alignment tool, 1 ea.
• Spring retainer screw, 2ea.
• Spring, 21 C.D., 2 ea.
• Double action stirrup insert, 2 ea.
• Allen Wrench 3/23” and 1/8”
• Ball, chrome, 7/32”, 2ea.
• Precut PolyCar-C, 060 composite, 2ea.
• Screw 10-32×1/4”, truss HD, S.S, 2ea.
• Dorsiflexion stirrup insert, right and left, 2ea.
• Joint nut, 2ea.
PDA with Polycarc-C
Plantar Dorsiflexion assist
82kg weight limit
Indicated for conditions requiring rigid ankle support and positioning
| Code | 18.002.103 |
• PDA ankle joint body,2ea.
• AFO alignment tool, 1 ea.
• Precut PolyCar-C, 060 composite, 2ea.
• Screw 10-32×1/4”, truss HD, S.S, 2ea.
• Spring retainer screw, 2ea.
• Spring, 21 O.D., 2 ea.
• Double action stirrup insert, 2 ea.
• Allen Wrench 3/23”
• Ball, chrome, 7/32”, 2ea.
• Dowel pin, 1/8 x 7/8 “, 4ea.
• Joint nut, 2ea.
• Allen Wrench, 1/8”
Dynamic Walk Standard – AFO
Dynamic AFO orthosis made with a carbon fiber with springs in PEEK that provide a lot of strength and flexibility.
The open heel construction allows natural movement of the foot and thanks to the slim design of the footbed, it fits easily to normal shoes.
Recommended for patients with peroneal nerve palsy, not recommended for patients with contractures.
without padding
| Code | Size | Heel Width | Shoe |
| 18.001.001 | Small right | 67.5 mm | 35-38 |
| 18.001.002 | Medium right | 72.5 mm | 39-43 |
| 18.001.003 | Large right | 80.5 mm | 44-47 |
| 18.001.004 | Small left | 67.5 mm | 35-38 |
| 18.001.005 | Medium left | 72.5 mm | 39-43 |
| 18.001.006 | Large left | 80.5 mm | 44-47 |
with padding
| Code | Size |
| 18.001.019 | Small |
| 18.001.020 | Medium |
| 18.001.021 | Large |
Dynamic Walk Single Side – AFO
- This model with an innovative design has PEEK springs both on one side which can optionally be medial or lateral.
- Easy to insert and remove from the shoe, even if tight.
- Offers the same features as the Dynamic Walk Standard.
Dynamic Walk AFO without padding
lateral side
| Code | Size | Shoe |
| 18.001.007 | Small right | 35-38 |
| 18.001.008 | Medium right | 39-43 |
| 18.001.009 | Large right | 44-47 |
| 18.001.010 | Small left | 35-38 |
| 18.001.011 | Medium left | 39-43 |
| 18.001.012 | Large left | 44-47 |
medial side
| Code | Size | Shoe |
| 18.001.013 | Small right | 35-38 |
| 18.001.014 | Medium right | 39-43 |
| 18.001.015 | Large right | 44-47 |
| 18.001.016 | Small left | 35-38 |
| 18.001.017 | Medium left | 39-43 |
| 18.001.018 | Large left | 44-47 |
Dynamic Walk AFO with padding
lateral side
| Code | Size |
| 18.001.025 | Small |
| 18.001.026 | Medium |
| 18.001.027 | Large |
medial side
| Code | Size |
| 18.001.022 | Small |
| 18.001.023 | Medium |
| 18.001.024 | Large |
Others type AFO
AFO for leg and foot
| Code | Type | Shoe | Hight |
| 18.010.01.S.L | Small left | 35-38 | 34 cm |
| 18.010.02.M.L | Medium left | 40-43 | 36 cm |
| 18.010.03.L.L | Large left | 41-46 | 39 cm |
| 18.010.04.XL.L | Extra-large left | 46 and others | 41 cm |
| 18.010.05.S.R | Small right | 35-39 | 34 cm |
| 18.010.06.M.R | Medium right | 40-43 | 36 cm |
| 18.010.07.L.R | Large right | 41-46 | 39 cm |
| 18.010.08.XL.R | Extra-large right | 46 and others | 41 cm |
AFO extrastrong for drop foot
| Code | Type | Shoe | Hight |
| 18.011.01.S.L | Small left | 35-39 | 28 cm |
| 18.011.02.M.L | Medium left | 40-43 | 29 cm |
| 18.011.03.L.L | Large left | 41-44 | 34 cm |
| 18.011.04.XL.L | Extra-large left | 44 and others | 39 cm |
| 18.011.05.S.R | Small right | 35-39 | 34 cm |
| 18.011.06.M.R | Medium right | 40-43 | 36 cm |
| 18.011.07.L.R | Large right | 41-46 | 39 cm |
| 18.011.08.XL.R | Extra-large right | 46 and others | 41 cm |
Orthopedic AFO carbon fiber
| Code | Type | Shoe | Hight |
| 18.012.01.S.L | Small left | 32-36 | Adjustable |
| 18.012.02.S.R | Small right | 32-36 | Adjustable |
| 18.012.03.M.L | Medium left | 36-41 | Adjustable |
| 18.012.04.M.R | Medium right | 36-41 | Adjustable |
| 18.012.05.L.L | Large left | 41 and others | Adjustable |
| 18.012.06.L.R | Large right | 41 and others | Adjustable |
| 18.012.07.XL.L | Extra-large left | 41 and others | Adjustable |
| 18.012.08.XL.R | Extra-large right | 41 and others | Adjustable |
Key specifications
| Device Category | Ankle orthosis and ankle joints |
| Warranty | 12 months |
| Product Code Series | 18.001, 18.002 |
| Product Types | Modular integrated ankle joint; integrated ankle joint; bars and stirrups; short leg upright; ankle joint kits; Polycar-C inserts; AFO |
| Materials | Stainless steel; aluminum alloy; Polycar-C |
| Bar Slot Sizes | 12 mm, 16 mm, 19 mm |
| Range of Motion | Adjustable stops 0 to 30 degrees in both directions |
| Motion Options | Limited motion; free motion; toe pick-up; double action; dorsiflexion assist |
| Sizes | Small, medium, large; 20 cm child length and adult versions |
Ordering and technical support
Supplied by Roadrunnerfoot Engineering S.r.l., Pregnana Milanese, Italy. The full range is listed in the Roadrunnerfoot 2025 catalogue. Orthopedic technicians, clinics and international distributors can request technical data sheets, product codes, pricing and fitting support from our team.