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This part creates distance and guide among the knee-joint and the foot (in case of an higher-leg prosthesis) or between the socket and the foot. The type of connectors which might be used among the shank and the knee/foot determines whether the prosthesis is modular or no longer. Modular manner that the angle and the displacement of the foot in respect to the socket can be changed after fitting. In growing nations prosthesis mostly are non-modular, with the intention to reduce fee. When considering youngsters modularity of angle and height is essential due to their average growth of 1.9 cm yearly.