Particularly encouraging results were achieved in the most severe multilevel and multi fragment fractures of the shaft of femur on which stable reduction and union of bone fragments seemed impossible, as any attempt of such a reduction would seemingly have led to bone devitalization. Functional treatment provides excellent and good functional effects and a significantly shorter time of healing in comparison with other techniques. Functional treatment is advocated for intra articular knee fractures and fractures of the shaft of femur for several other fractures.