[Early and late results after Colonna arthroplasties of the hip-joint (author's transl)].

In 10 years the authors have carried out 107 Colonna arthroplasties of the hip-joint. Results could be followed up in 98 patients, of whom 56 were - at the time of operation-less than 5-year-old, 42 holder. Among the early operations results were good and satisfactory in 60 per cent, in the late operations 50 per cent. They found that the quality of the result depended largely on the age of the patient, pre-operative traction and additional osteotomy. They recommend this operation for patients with neglected CDH or for those in whom closed reduction did not succeed and operations after Pemberton or Salter cannot be carried out any more.