The unilateral joint system

Orthosis joints for leg muscle paralysis

Benefits at a glance

Comfortable to wear

With a body weight of up to 110 kg and depending on your physical condition, it is possible to only use one instead of two knee and ankle joints respectively. This makes the orthosis especially 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 is therefore locked again.

The ankle joint has a foot lifting effect and, with nine different possible combinations of spring, stop and spring stop as well as the continuously variable limitation of the range of motion up to a maximum of 20°, makes it possible for your orthopaedic technician to adjust the joint to your individual needs.


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