Abstract: | Between 1977 and 1982, 19 cases of congenital dislocation of the hip (CDH) were encountered in black infants. Six of these cases were associated with other anomalies (atypical CDH); 13 were typical CDH. The incidence of complete CDH in the white population studied is 1.5/1000; in the black population studied it is 0.46/1000. The increased incidence in comparison to previous studies may possibly reflect genetic heterogeneity in the control population relative to the African black. |