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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

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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 which 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 an All-Terrain Knee

The All-Terrain Knee collection offers four different configurations to provide an optimal experience for each use. Both the All-Terrain Knee and All-Terrain Knee Premium are available with or without stance flexion. View the comparison chart below to determine which model is right for your patient.
All-Terrain Knee All-Terrain Knee with Stance Flexion All-Terrain Knee Premium All-Terrain Knee Premium with Stance Flexion
Freshwater Activities Only
Freshwater and Saltwater Activities
Rated up to 330 lb (150kg)
Rated up to 275 lb (125kg)
Long TF Residuum or KD