Price on request
ESK+
Mechanical knees. A knee with weight-activated stance control and adjustable pneumatic swing control.
LegWorks
Photo could not be loaded
LegWorks · Mechanical knees · PR-021
LegWorks All-Terrain Knee Waterproof Mechanical Knee
The LegWorks All-Terrain Knee is a waterproof mechanical prosthetic knee with a four-bar design. Its AutoLock mechanism locks the knee in stance, and a swing controller varies cadence without hydraulics or pneumatics. The standard ATK-PA-01 weighs 1,040 g and bends to 150 degrees. It can be submerged in fresh water, is CE marked, and has a maker's listed price of USD 1,035, given here as a guide price.
- Mobility levels
- K1 to K4
- Max user weight
- 275 lb (125 kg)
- Knee flexion
- 150 degrees
- Weight
- 1,040 g (ATK-PA-01); 1,230 g (ATK-SF-01)
LegWorks All-Terrain Knee key features
- AutoLock stance lock engages automatically
- Variable cadence without hydraulics or pneumatics
- Submersible in fresh water such as a shower or lake
- Three versions: standard, stance flexion and threaded top
- Manual twist-knob lock
- 24-month maker's warranty
Who the LegWorks All-Terrain Knee suits
Covers transfemoral users from K1 to K4, so it can serve a first-time walker and an active user who wants a knee for the lake. Knee-disarticulation fitting is limited to the non-stance-flexion version. Selection and alignment are done with a prosthetist.
This kind of device is prescribed and fitted by a clinician. An enquiry starts that conversation. It is not a purchase.
Figures for comparing
- Weight
- 1 kg (2.2 lb)
- Max user weight
- 125 kg (276 lb)
The same units on every product, converted from the specifications below. Where a source gives two limits, the lower one is shown.
LegWorks All-Terrain Knee specifications
| Mobility levels | K1 to K4 |
|---|---|
| Max user weight | 275 lb (125 kg) |
| Knee flexion | 150 degrees |
| Weight | 1,040 g (ATK-PA-01); 1,230 g (ATK-SF-01) |
| Height | 186 mm (ATK-PA-01); 201 mm (ATK-SF-01) |
| Design | Four-bar mechanical |
| Water use | Submersible in fresh water |
| Warranty | 24 months |
| Regulatory | CE marked |
| Maker country | USA |
| Guide price | USD 1,035 (maker's listed price) |
| Brand | LegWorks |
| Category | Lower limb - knees, hips and leg systems, Mechanical knees |
| Catalog ID | PR-021 |
Compared with the source page on 5 October 2026. Details can change, so we confirm them in your quote. Open the source page.
LegWorks All-Terrain Knee: common questions
How much does the LegWorks All-Terrain Knee cost?
The guide price is USD 1,035, the maker's listed price for the knee. Your quote will confirm the current figure and the version.
Can I shower or swim with the All-Terrain Knee?
LegWorks describes it as waterproof and submersible in fresh water, giving a shower and a lake as examples.
What is the weight limit of the All-Terrain Knee?
The limit is 275 lb, or 125 kg, and it is rated for mobility levels K1 to K4.
How to get a quote for the LegWorks All-Terrain Knee
Add it to your enquiry list
Press Add to enquiry. You can add other products and parts to the same list.
Tell us your country and needs
Send the list with your country, sizes and any options you want. No payment details are asked.
Get a personal reply
You receive availability, a price and delivery options by email, and decide after that.
Similar to the LegWorks All-Terrain Knee
All Lower limb - knees, hips and leg systemsPrice on request
KX07
Hydraulic and pneumatic knees. A waterproof four-bar polycentric knee with hydraulic swing and stance control.
Price on request
3R80 Modular Knee Joint
Hydraulic and pneumatic knees. A single-axis knee with rotary hydraulic control of stance and swing.
Price on request
Capital Knee
Hydraulic and pneumatic knees. A single-axis hydraulic knee with swing and stance control and a mode switch.
Goes with this product
Guides for this kind of product
Money & Funding · 8 min read
What a prosthetic leg really costs and who pays
A prosthetic leg is a fitted service, not a boxed product. Here is what the bill is made of and which funding routes to ask about first.