Cosa Active/Junior hip abduction orthosis

Inconspicuously effective

The Cosa Active/Junior, a so-called hip abduction orthosis, can be worn by both children and adults. If the patient has a scissor gait, as is typically seen in various types of infantile cerebral palsy, the orthosis prevents crossing of the knees and allows for more stable standing and sitting thanks to the abduction pads. Users need to expend less energy to cover greater distances. In addition, the improved pelvic symmetry and increased freedom of knee movement supports a more physiological gait.

The Cosa Active/Junior is also helpful for wheelchair users, as the orthosis makes additional wheelchair abductors unnecessary.

The orthosis can also be easily worn with lower leg orthoses.

Zipper for easy donning and doffing

The Cosa line includes the Cosa Active and the Cosa Junior. While the latter covers sizes 80-116 (this corresponds to a body height of 74-122 cm) and does not feature a zipper, the Cosa Active is available in size 128 to unisex size L (women’s 46 and men’s 54).

Individually positionable straps

The individually adjustable straps stabilise and secure the pads and strengthen the outward position.

Soft, breathable material

The Cosa Active/Junior is made of a stretchable, breathable material which is comfortable to wear and helps minimise perspiration. The trousers are easy to clean and are machine washable at 40°. The starter set contains two pairs of trousers and a pair of abductors for regular changing and washing.

Abduction pads

The abduction pads are fitted inside the extra padding pouches sewn into the trousers above the knee. The pads act as an artificial gap between the knees, thereby facilitating a more stable gait pattern. An orthotist can individually adjust the pads.

Benefits at a glance

Inconspicuously effective

The Cosa Active and the Cosa Junior improve torso control and stabilise standing and sitting via pads between the legs. Mobility is also increased through reduction of the scissor gait (spastic crossing of the legs). The freedom of knee movement results in an improved gait pattern overall.

High level of wearer comfort

Breathable, soft material, the individually positionable straps as well as the zipper (Cosa Active) for easy donning and doffing: All this ensures a high level of wearer comfort.

A broad range of combination possibilities

The orthosis makes additional wheelchair abductors unnecessary, as the abduction pads provide a wider sitting base when the user is seated as well. Lower leg orthoses can be easily combined with the Cosa Active/Junior in order to stabilise the gait pattern.

Suitable for day or nighttime wear

The Cosa Active/Junior can be worn during the day and at night. It can help to prevent the knees from rubbing together at night in particular.

Easy care

The Cosa Active/Junior can be easily washed in the machine at 40 . The pads can be removed for this purpose.


  • Diplegia, spastic
  • Hip dysplasia
  • Hip joint subluxation, congenital
  • Hypotonicity
  • Tetraplegia, spastic



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