[Pathomorphogenesis of radio-ulnar synostosis in fractures of forearm bone shafts].

Pathomorphogenesis of radioulnar synostosis which occurred in 4 out of 174 patients treated because of recent and inveterate fractures as well as pseudoarthroses within shafts of forearm bones has been presented. Fractures of both radius and ulna, located at the same level within proximal half, inveterate or neglected, after severe or multiple trauma are at the highest risk of developing radioulnar synostosis.