Bionic technology · Össur

Össur Proprio Foot: the “smart” foot with a microprocessor ankle

Össur’s Proprio Foot is a prosthetic foot with a microprocessor-controlled ankle: it lifts the toes with every step and adapts to ramps, stairs and different shoes.

Ankle that adapts to ramps and stairs
Lifts the toes to reduce tripping
One-button adjustment for heels up to 5 cm
IP67 water protection
For below-knee and above-knee prostheses

2310 282 894 Book an appointment

Össur Proprio Foot bionic prosthetic foot with microprocessor ankle

Most prosthetic feet have a fixed ankle angle. Össur’s Proprio Foot is different: it is an adaptive, microprocessor-controlled ankle that changes position according to the ground and the activity, as a natural ankle does. That is why we often call it a “smart foot”. At Hlamidis Orthopaedic Center in Thessaloniki we fit the Proprio Foot on both below-knee (transtibial) and above-knee (transfemoral) prostheses.

How the Proprio Foot works

Sensors continuously record the movement of the prosthesis. When the foot is in the air (swing phase), the ankle actively lifts the toes of the foot, increasing ground clearance and reducing the risk of the foot catching and you tripping. After a few steps uphill, downhill or on stairs, the system recognises the terrain and adjusts the ankle angle for more natural, comfortable walking.

Key features

Adapting to the terrain: automatic adjustment on level ground, ramps and stairs.
Active toe lift: greater ground clearance with every step, for more safety.
Heel-height adjustment: at the press of a button, the ankle realigns for shoes with heels of up to 5 cm.
Comfort when sitting: a special relaxation function when you sit, and easier rising from a chair.
Water protection: an IP67 protection rating, so you need not worry about water in everyday life.
Built-in battery: lasts up to about two days, depending on use.

The Össur Logic app

With the Össur Logic app, the prosthetist adjusts the foot’s settings and views activity reports, while you can realign the ankle when you change shoes and keep track of your steps and battery.

Who the Proprio Foot is for

The Proprio Foot is intended for people with a below-knee or above-knee amputation and a low to moderate activity level (K2–K3). In simple terms, for people who walk outside the home and around town, climb stairs and kerbs or walk on sloping streets, and want more safety and comfort in these everyday situations. It can be combined with a microprocessor knee, such as the Rheo Knee, in an above-knee prosthesis. The choice is made after an assessment, together with your doctor.

Fitting and training

We start with an assessment and make a socket tailored to you — first a test socket and then the definitive one. We set up the Proprio Foot for your gait and train you in the training area at our premises, with a ramp and stairs, so that you get used to how the ankle adapts. With regular check-ups we continue adjusting the settings as needed.

What to expect in the first few weeks

The biggest change users notice is on slopes and stairs, where the ankle no longer “cuts short” the step. The system needs a few steps on each new surface to recognise it, which you will quickly get used to. We show you how to adjust the heel height when you change shoes and how to look after the foot and its battery, so that you can use it with confidence every day.

Cost and EOPYY

The price of the Proprio Foot depends on its configuration and the other components of the prosthesis. EOPYY (ΕΟΠΥΥ), Greece’s national health insurance organisation, reimburses people insured in Greece for prosthetic feet according to the categories in its price list. As an indication, the maximum reimbursable price for a high-performance dynamic (energy-storing) foot is €1,078, according to Government Gazette (ΦΕΚ) B' 1079/2022, with a co-payment by the insured person of, as a rule, 25%. A microprocessor foot is not fully covered: the difference is paid by the patient. We will tell you the exact amount in your case. See our page on EOPYY reimbursement. If you are not insured in Greece, EOPYY reimbursement does not apply; you can pay privately, and any cover depends on your own insurer’s rules — contact us and we will give you the information you need for your case. The EOPYY information is correct as of the date this page was last updated (October 2026).

To find out whether the Proprio Foot is right for you, book an assessment or see all the systems in our bionic technology section.

FAQ

Frequently asked questions

Can’t find your answer? Our prosthetists are happy to help.

Contact

How much does a Proprio Foot cost?

The price depends on the configuration of the foot and the other components of the prosthesis, such as the socket and suspension system. We give a price after an assessment, with a detailed proposal. For people insured in Greece, EOPYY covers up to the amount of the relevant prosthetic foot category and the patient pays the difference. Call us on +30 2310 282 894.

Can I wear shoes with heels?

Yes. The Proprio Foot can be adjusted for heel heights of up to 5 cm. When you change shoes, you press a button or use the Össur Logic app and the ankle realigns automatically, so the prosthesis stays correctly aligned and walking stays comfortable, whichever pair you are wearing.

Can the Proprio Foot get wet?

The Proprio Foot has an IP67 protection rating, which means protection against dust and against temporary immersion in water. So rain and splashes in everyday life are not a problem. When we hand over the foot, we explain the manufacturer’s instructions for use near water in detail.

Can the Proprio Foot be used with an above-knee prosthesis?

Yes. The Proprio Foot is fitted for below-knee amputation and also for levels above the knee, where it can be combined with a microprocessor knee such as the Rheo Knee. Suitability is decided after an assessment, based on your amputation level, activity and goals.

How long does the battery last?

The built-in battery lasts up to about two days, depending on how much you walk. You can check the charge level with a button on the foot or through the Össur Logic app, and for most users charging overnight is enough.