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Custom dynamic knee ankle-foot orthosis (KAFO)
©Jennifer Williams
Custom dynamic knee ankle-foot orthosis (KAFO)
©Jennifer Williams
Custom dynamic knee ankle-foot orthosis (KAFO)
©Thuasne® USA

Detailed description

SpryStep® Vector KAFO is an advanced knee-ankle-foot orthosis (KAFO) designed to meet the needs of patients with varying neurological lower limb deficits such as CVA, MS, TBI, CMT, spinal cord injury, polio Patients whose biomechanical control cannot be optimised by an AFO alone. 
Patients whose neurological deficit requires locking of the knee and control of the foot and ankle (locking optional). Patients with potential for recovery via rehabilitation.

This orthosis is custom-made from a digital scan of the patient's leg, ensuring a precise fit that enhances both comfort and effectiveness. 
This orthosis integrates modern composite materials, making it durable yet easy to wear, with reliable Thuasne hinge technology to deliver superior support and functionality.

Key benefits of the SpryStep® Vector KAFO include:
 

  • Versatile Design: Available in four shell configurations and a variety of joint options to cater to different patient needs.
  • Enhanced Comfort: The heat-formable molded inner boot ensures a snug, comfortable fit, accommodating various foot shapes and sizes. The orthosis's elegant and lightweight design, without ankle-joint, increases patient compliance by providing both comfort and functionality.
  • Lightweight and Durable: Made from high-quality composite materials, the SpryStep® Vector KAFO is both lightweight and robust, ensuring long-lasting performance preventing delamination and breakage.
  • Minimalistic composite structure: avoids boney prominences limiting fitting error.
  • Joint Options: Features both locking and free-moving knee joints, providing flexibility and stability as required.
  • Stabilization: Addresses knee alignment concerns like genu varum, genu valgum, and genu recurvatum.

Cycle-testing independently performed under ISO 10328 Servo-Pneumatic Test System 

Patient profile

  • NeurologicalNeurological
  • AdultAdult

Specifications

  • These indications are biomechanical deficits of neurological, traumatic or muscular origin.
    Excessive plantarflexion during swing phase (secondary to weak dorsiflexors).
    Weakness of the pretibial muscles ≤ 3.
    Plantar flexor strength 0 to 4.
    Knee instability during stance phase.
    Quadriceps weakness.
    Knee hyperextension.
    Excessive knee flexion during stance phase (secondary to weak plantarflexors).
    Partial foot amputation (Chopart or more distal).
    Mild to moderate genu valgus/varus in combination with ankle sagittal plane deficits.
    Fatigueable footdrop.
    Footdrop.
    Foot slap.
    Circumduction.
    Vaulting (plantar flexion of the contralateral ankle joint in median stance phase).
    High knee gait.
    Hip hiking/contralateral trunk bending. Trendelenburg gait/limp
    The custom application allows to accommodate for the following after full assessment:
    Plantarflexion contracture.
    Moderate to severe spasticity of the foot and ankle.
    Moderate to severe oedema of the limb.
    Moderate to severe foot deformities (including fixed ankle varus or valgus conditions).
    Moderate to severe ankle instabilities including non-correctable triplanar instability.
    Running/high impact activities on lower limb.
    Moderate to severe coronal plane deformity i.e. pronation/supination with increased tone.
    High tone.
    High pitched footwear.

  • Do not use the product if the diagnosis has not been confirmed.
    Do not apply the product in direct contact with broken skin.
    Do not use in the event of known allergy to any of the components.
    Do not use for patients weighing >135 kg.
    Open ulcers of the foot, ankle or lower leg.
    Severe loss of sensation in the lower limb.

  • Rigid components: carbon fibre - glass fibre -
    high density polyethylene - polypropylene
    copolymer - stainless steel.
    Textile components: polyamide - elastane -
    polyurethane - ethylene vinyl acetate.

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