GROWTH AND DEVELOPMENT OF CONGENITALLY DISLOCATED HIPS REDUCED IN EARLY INFANCY

The authors determined the acetabular angles, center-edge angles, comprehensive quotients, and Shenton's lines from sequential roentgenograms of 37 children with congenitally dislocated hips treated by closed non-manipulative reduction in early infancy. The values were compared with those obtained from roentgenograms of 164 normal children who ranged in age from 3 mth to 5 yr and of 43 adolescents and adults. The hip recovering from congenital dislocation developed similarly to the normal hip but differed in that it showed a greater rate of decrease of the acetabular angle and an increase in the center-edge angle. Significant development after the age of 5 yr still was manifested in the reduced hips.