C-Leg 4 above knee prosthetic leg

C-Leg 4: Reclaim your determination

Dependability you can count on

The C-Leg 4 continues the ground-breaking tradition of improving outcomes for more than 60,000 fittings worldwide. With studies citing increased stability and reduced falls*, the C-Leg 4 is weatherproof, can be controlled with the Android Cockpit app, and makes walking backward easier. Whether on sidewalk steps or dodging subway crowds, the C-Leg 4 helps transform the way you walk.

Go to the Advantages for you tab below to learn how the C-Leg 4 can transform the way you walk.

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What you need to know

Advantages for you

Stop worrying about falls

With its sensors, C-Leg 4 knows when you’re in an insecure position. During a trip or stumble, it increases resistance to provide the support you need to recover before you fall.

Real-time adjustments driven by 3D motion analysis

Since your motion occurs in three dimensions, the C-Leg 4 uses sophisticated sensors to determine where it is in space at all times and to make precise adjustments at every moment of every step. As a result, C-Leg 4 lets you easily navigate ramps, stairs, and nearly every type of challenging surface – even walking backwards.

MyModes

C-Leg 4 helps people master everyday life more confidently. With two additional MyModes, your Prosthetist can set up the knee to help make activities like biking, dancing, or golfing easier. Switching modes is simple, you can use the remote control or the Cockpit app for Android to quickly change your settings using Bluetooth® technology.

Stance and stumble recovery

C-Leg 4 offers you the choice of Intuitive Stance, which recognizes you have stopped moving and dampens the knee in a slightly flexed position. This makes standing more comfortable and less tiring even on uneven surfaces, ramps, and slopes. This feature is sophisticated, adjusting and readjusting with every step in real time.

Easy going

Getting your prosthetic leg into motion is easy with the support from a C-Leg 4 microprocessor. The smooth, natural start to your “swing phase” gives you the freedom and control you need to meet the challenges of your everyday life.

Every step is smooth and secure

Choose one of the Triton feet from Ottobock to complete your C-Leg 4system:

  • the lightweight Triton carbon fiber foot with exceptionally smooth control;
  • the Triton Vertical Shock (VS) with great shock absorption in a compact design;
  • the Triton Harmony® with integrated vacuum technology;
  • the Triton Heavy Duty, robust and waterproof, for particularly challenging conditions), or
  • the Triton Low Profile, with especially low structural height for those who need the extra room.

How the C-Leg works

How the C-Leg Works

The innovative C-Leg was designed to reproduce the functions of a biological leg. Click here to see a video about how the C-Leg's microprocessor-controlled hydraulic system performs throughout your walking pattern ("gait cycle") to give you stability and control.

Components

C-Leg 4 system components

C-Leg 4 system components Please go to the Downloads tab on this page to download a list of C-Leg 4 components and their product numbers.

Feet options

C-Leg 4 system components Please go to the Downloads tab on this page to download a list of C-Leg 4 components and their product numbers.

The lightweight Triton carbon fiber foot with exceptionally smooth control

The Triton Vertical Shock (VS) with great shock absorption in a compact design

The Triton Harmony with integrated vacuum technology

The Triton Heavy Duty, robust and waterproof, for particularly challenging conditions

The Triton Low Profile, with especially low structural height for those who need the extra room

Technical info

Technical Specifications

Highly stable yet lightweight carbon fiber frame

Patient weight: Max. 300 lbs/136 kg

Weight of the knee joint only: about 2.8 lbs / 1,235 g

Height of the knee joint with adapter: between 11.2 inches / 28 cm and 21 inches / 53 cm (with torsion adapter)

Adjustable activity modes: 2Operating time with fully charged battery: 40 to 45 hours

Maximum possible knee flexion angle without flexion stop: 130°

*All components of your prosthesis must be appropriately rated to reach this weight limit. See your prosthetist for specifics.

Downloads

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C-Leg 4 Brochure

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C-Leg 4 Instructions for use

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C-Leg - it's back in black!

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FAQs

Take a look at our Frequently Asked Questions for more information.

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Accessories


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