抄録
Factors influencing the prognosis of lateral deviation of the femoral head developed after the initial treatment of congenital dislocation of the hip were discussed.
1. Lateral deviation occurred easily with open reduction or Lorentz' method.
2. To predict the occurrance of the lateral deviation, it is necessary to examine the C-E angle and the changes of the acetabular angle from time to time.
3. The prognosis of the cases of lateral deviation simply due to exaggerated anteversion of the femoral neck or due to unknown factor was good without any more treatment. However, those due to femoral head deformity had so poor prognosis as to require further surgical treatment.
