VGK-XS for children


The VGK-XS is the world’s first Fluidic Processor Knee (FPK) for children. The VGK-XS has been designed to adapt to the life of an active child, and grow with them through adolescence.

Sophisticated stance and swing phase control supports fast and slow walking, leg-over-leg stair descent, and exploration of uneven terrain. In case of a misstep, the stumble recovery feature gives the child time to regain their balance. The VGK-XS also has an optional cycling mode.

The smallest and lightest in the VGK range, this knee gives children access to all the features found in VGK adult knees. The VGK-XS is suitable for children and adolescents aged ~7+.

Stance security

The VGK-XS is default stance with easy release into swing phase

Stairs & slopes

Controlled leg-over-leg stairs and slope descent

No charging

High performance, no battery charging

Stumble recovery

Knee supports bodyweight when a stumble is detected


Occasional wetting and immersion up to 5m deep

Variable cadence

Adapts within a single step to changes in walking speed

Cycling mode (optional)

Selectable cycling function with a safety catch

VGK-XS features

  • Fluidic Processor Knee (FPK) technology
  • Default stance knee
  • Stumble recovery
  • Variable cadence
  • Controlled stair and slope descent
  • Temperature & load compensation
  • Waterproof
  • No charging required
  • Up to three selectable stance modes:
    • Everyday walking mode
    • Ultra-high stance resistance mode
    • Cycling mode (optional)
  • Selectable swing-phase lock
  • Socket delimited flexion
  • Built-in rotational adaptors at the proximal and distal ends

VGK-XS Specifications

ApplicationKnee disarticulation, transfemoral amputation, hip disarticulation, bilateral amputation

Suitable for use with osseointegration (requires manufacturer’s prior consent)
Activity classK1-K4
Max. bodyweight60 kg
Build height210 mm
Product weight850 grams
Proximal connectionPyramid, children’s pyramid, M36 thread
Distal connectionPyramid
Max. knee angleSocket delimited
IP ratingNot applicable (not an electrical device)

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