This state-of-the-art medical device compensates for the functional shortening of the forefoot lever and thus enables patients with partial foot amputations to stand and walk in a physiological manner. The following system components are crucial for this:
- high ventral tibial shell: for an optimal use of body weight;
- partially flexible foot piece: for a physiological heel-to-toe movement;
- interchangeable spring units: for a dynamic stance and gait and an adjustment to the biomechanical deficits at different amputation heights.
Which spring unit with which range of motion and spring force is best suited for the patient is determined with the help of a newly developed classification that takes into account the biomechanics of the individual amputation heights. In total, there are three different types that differ in forefoot lever length, muscular balance and muscle strength.