The SafetyStride knee joint, a device for braces, features a small cable system that unlocks automatically after each step. Its key advantage is its ability to prevent your knee from bending at any angle, without requiring your leg to be fully straight to support you while standing or walking.
Traditional KAFOs only lock in full extension, which provides lower limb stability but also causes patients to ambulate with gait deviations that may lead to other problems over time; since traditional KAFOs do not allow for knee flexion while the patient is ambulating, they also require more energy to use. Stance control orthoses (SCOs), on the other hand, allow the patient's knee to flex during the swing phase of gait and block flexion in the stance phase for stability. An SCO's ability to provide knee flexion during the swing phase allows patients to walk with less effort and a more symmetrical gait pattern.