Early radiodiagnosis of dysplasia of the hip joint in children

The author proposes a method of differential diagnosis of hip dislocations and hip joint dysplasia in infants aged 3 months. The α-angle of hip dislocation with relation to trochanterian space is determined on an anteroposterior radiogram of the hip joints; 64 deg means hip dysplasia, 65-69 deg and more mean dislocation. This method was tested in 75 children (150 joints) aged 3 months. A mean diagnostic accuracy was 90.1 %