1. In any large series of cases of congenital dislocation of the hip as now seen, success by closed reduction can be expected in only about fifty per cent.

2. These results could be improved upon if more of the cases were treated early, and every effort should be made to bring this about.

3. The other factors chiefly responsible for the failures are such that we cannot hope to overcome them by any method of closed reduction.

4. In many cases the presence of these factors can be suspected but can be determined definitely only by open operation.

5. The number of open reductions in this series is too small to justify any general conclusions. We are not yet prepared to announce the results in a larger subsequent series, but we are quite certain that many of these cases, although reduced and stable, have a considerable degree of limitation of motion which has been present for a number of months.

6. We believe that practically every congenital dislocation of the hip within a reasonable age limit can be reduced by open operation and in that way improved.

7. The results in this series of cases compel us to believe that a much larger percentage should be reduced by open operation than were so treated.