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All-Terrain Knee Premium
All-Terrain Knee Premium
All-Terrain Knee Premium
All-Terrain Knee Premium
All-Terrain Knee Premium
All-Terrain Knee Premium
All-Terrain Knee Premium
All-Terrain Knee Premium
All-Terrain Knee Premium
All-Terrain Knee Premium
All-Terrain Knee Premium

All-Terrain Knee Premium

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Waterproof and highly functional, the All-Terrain Knee Premium is a 4-bar prosthetic knee joint that fulfills the security needs of low-mobility users while still meeting the physical demands of active amputees. LegWorks’ patented Autolock Technology stance phase controller instills confidence on all terrains, while the patent-pending swing phase controller allows for variable cadence without the use of hydraulics or pneumatics. An ideal knee for users who desire a water leg, the All-Terrain Knee Premium includes a simple twist-knob manual lock that allows for absolute stability in or around the water.

Weight Rating: 330 lb (150kg)

Warranty: 24-Month manufacturer's warranty

Reimbursement: L5611, L5845 (stance flexion only), L5850, L5925

Note: L-Codes suggested by LegWorks are for reference only, and are subject to change. The responsibility and liability for coding lie with the provider.

The All-Terrain Knee is CE-marked and conforms with the EC (CE) Declaration of conformity.


Product Features

  • Waterproof and corrosion resistant. Submersible in fresh or salt water.
  • Superior stability to traditional polycentric designs via the patented AutoLock Technology.
  • Friction swing phase control via the patent-pending Variable Cadence Controller.
  • Simple twist-knob manual lock.
  • Durably designed with a weight rating of 330 lb (150kg).

Potential Users

  • Amputees who desire a highly functional waterproof knee (e.g. shower leg, pool leg, beach leg) for a secondary prosthesis.
  • Amputees who desire a high-functioning, waterproof primary prosthesis that is low maintenance.
  • New K2 amputees with the potential to become K3 – K4 mobility level ambulators after rehabilitation.
  • Underinsured amputees that require a waterproof, high-functioning, and non-hydraulic prosthetic knee.

Product Specifications

Mobility Level K1-K4
Amputation Level Transfemoral, Knee Disarticulation (Non-Stance Flexion Only)
Knee Flexion Angle 150°
ATK-PA-02 Device Height & Weight 7 516 in (186mm)
2.30 lb (1,044g)
ATK-SF-02 Device Height & Weight 7 1516 in (201mm)
2.72 lb (1,234g)

Selecting the Right Knee

In order to provide an optimal experience for every user, LegWorks offers three different models of knee, each available with or without stance flexion. View the comparison chart below to determine which model is right for your patient.
Product Feature All-Terrain Knee All-Terrain Knee Premium ATK HydraPro
Variable Cadence Controller Non Fluid-based Non Fluid-based Hydraulic Damping
Submersible Freshwater Only Freshwater & Saltwater Freshwater & Saltwater
Weight Limit 275 lb (125kg) 330 lb (150kg) 330 lb (150kg)
Indicated Model: Long Residuum Without Stance Flexion Without Stance Flexion Without Stance Flexion
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