2D Resiprocating Orthoses has a new Revo 2D joint that guides the movement of the hip joint in 7+7 degrees angle. The first 7 degree angle is distally and inwards when looked on from the front, allowing outward rotation. This imitates the movement of the body in relation to the lower extremity. Thus legs stay in line with the walking direction and it is possible to take longer steps. The other 7 degree angle is medially frontally when watched from the above. This prevents adduction of the legs in sitting. Walking motion is created by tilting the body laterally and by extending the upper body. The swing phase is created with the help of a unique swinging mechanism behind the hip part. Can be used on patients with Th5-L3- lesion-level spinal cord injuries.