[Histomorphological studies on the development of the radial condyle fracture of the humerus in the growth years].

The dislocation of the lateral humeral condyle represents a typical fracture in childhood. Possible mechanisms of the traumatic displacement of the lateral humeral condyle got investigated by several publishers recently. Our examinations were concerned with the microarchitecture of the growing distal humeral cartilage. Here we discovered a bundle of collagenous fibers reaching in an angle of 15 to 30 degrees from the capitulum to the trochlea. The described fracture follows this collagenous bundle as we could demonstrate. It is evident that the microarchitecture of the cartilage paves the way for the dislocation of the lateral humeral condyle.