The deceptively simple design of the Fusion Foot provides superb multiaxial movement and vertical shock absorption during ambulation and delivers a high level of energy storage and return to patients. The integrated design allows the composite shank, heel and foot plate to work together as a unit versus independently. As a result, the Fusion Foot delivers vertical shock absorption, smooth heel-to-toe transition, inversion/eversion, and strong energy return all in one mechanism. The Fusion Foot is field-adjustable for inversion/eversion, heel stiffness and overall trim height. Two snubbers allow the bottom of the composite shank composite heel to run parallel to the foot plate allowing both plates to bend and flex providing response and stability on uneven terrain. The foot shank may be trimmed and requires no drilling of holes. Three proximal adapters are available for the Fusion Foot: Rotating Pyramid, Pyramid Receiver, and a Torsion Receiver. The Torsion Receiver provides 24 degrees of internal and 24 degrees of external rotation for more natural movement.
Full-Height Foot Shell, Spectra Sock,
Pyramid Reciever or Rotating Pyramid,
1 of 6 Toe Spring Options, 2 Heel Wedges,
2 Diameters of Snubbers
Note: Size 23-24 cm and 31 cm feet come with a High-Activity Foot Shell.
Weight 380 g* Adapter Weights Pyramid 205 g; Receiver 190 g; Torsion Receiver 420 g Patient Weight Limit Foot Size 23-24 cm: 230 lbs (104 kg)**
Foot Size 25-26 cm: 270 lbs (122 kg)**
Foot Size: 27-31 cm: 300 lbs (135 kg)**
Heel Height 3/8" (10 mm) or 3/4" (18 mm) Build Height***
Pyramid Receiver: 15.7 cm for 3/8” heel, 14.81 cm for 3/4” heel
Pyramid Adapter: 15.4 cm for 3/8” heel, 14.43 cm for 3/4” heel
Torsion Receiver: 20.33 cm for 3/8” heel, 19.35 cm for 3/4” heel
For build height measurements, proximal adapter installed and shank cut at minimum height line.
Available Sizes 23 to 31 cm Toe Resistance Toe Spring Chart (click to view chart) Cosmesis Lifelike in Buff, Tan or Medium Brown Heel Spring Options Two Wedges (included with each foot) Trial Period 60 days from invoice date U.S. Warranty Information
36 months from invoice date
9 months from invoice date
24 months from invoice date
U.S. L-Code Suggestions L5987, L5986 & L5984 with torsion receiver
* Based on size 26 cm cat 3 foot without Proximal Adapter, Foot Shell, or Spectra Sock.
** Body weight plus any loads normally or routinely carried cannot exceed this weight limit.
*** Build height measurements taken for a size 26 cm foot with WillowWood components. Measurements will vary if using non-WillowWood components.
To order a Fusion Foot, please select the size, side, color, toe spring stiffness, and heel height. To order a precut version of the Fusion Foot, use the add-on code FFT-PRECUT.
FFT-23LB-1L-1 Fusion Foot SAMPLE Part Number Name Code FFT FFT = Fusion Foot Size of Foot 23 23 to 31 cm Side of Foot L L = Left
R = Right
Foot Shell Color B B = Buff
M = Medium Brown (special order)
T = Tan (special order)
Toe Spring Stiffness 1 1 to 6 (click to view chart) Heel Height L L = Low 10 mm (3/8")
M = Medium 18 mm (3/4")
Proximal Adapter 1 1 = Pyramid Adapter
2 = Pyramid Receiver
3 = Torsion Receiver
Adjusting the Heel Resistance
Replacing the Snubbers
Replacing the Composite Heel
Installation Instructions Proximal Adapters
Torsion Receiver Installation Instructions
Fusion Foot: Test for Vertical Deflection
Product No. Description FND-136101 Pyramid Adapter FND-136102 Pyramid Receiver FND-136103 Torsion Receiver FND-136146 Height Extension Adapters, 46 mm FND-136124 Height Extension Adapters, 24 mm FSHT-XXXX-X Full-Height Foot Shell, 25-30 cm - for a complete
product number, specify size, side, color, heel height
The Fusion Foot provides superior multiaxial movement, vertical shock, high levels of energy storage and return, and impressive inversion and eversion.
Fusion™ Foot Training Video
Learn all about the Fusion Foot in this instructional video that details the foot's features and benefits, ordering information, and the warranty.