[Rehabilitation of knee joint instability caused by pseudarthrosis of the lateral femoral condyle].

Authors report on the successful operative treatment, 15 years after the development of a pseudarthrosis, following the fracture of the lateral femoral condyle and causing knee instability. In this case the refreshing of the avascular pseudarthrosis gap reduction and screw osteosynthesis were performed. The basic principles of the distribution and treatment of pseudarthrosis are reviewed. Attention is called to the importance of exact reduction and stable fixation and to the fact that reconstruction can be carried out even long after the injury.