The unilateral joint system

Orthotic joints for leg paralysis

Benefits at a glance

Comfortable to wear

The joints can be used unilaterally up to 110kg of a body weight which makes the orthosis particularly light, slim and comfortable to wear.

Titanium: particularly lightweight

The joint system is also available in an ultra-lightweight titanium version.

Always the right size

The joint system is available in different sizes, including size versions especially for children.


The unilateral joint system consists of a locked knee joint with wedge lock and a multifunction ankle joint. While the knee joint is permanently locked, it can be unlocked using a lock lever or pull cable, for example when you want to sit down. The joint engages automatically when you get up and fully stretch your leg.

The ankle joint has a foot lifting assist with nine different possible combinations of spring, stop and spring stop. This gives your orthotist a large range of adjustments to your individual needs.


  • Can I shower with the orthosis?

    No, but Ottobock's Aqualine orthosis system is a waterproof walking device designed especially for wet conditions. All of the components used are designed for contact with water.

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