Figures & data
Figure 1. Radiographic measurements. Panels A and B show the primary radiograph of a 15-month-old girl with a dislocated right hip. AI is the acetabular index. The lateral (e) and vertical (f) metaphyseal distances are indicated.
Figure 2. Radiograph of the same patient as in at the age of 9 years. Migration percentage (panel A) is a/b × 100 and indicates the percentage of the femoral epiphysis lateral to the lateral rim of the acetabulum. CE is center-edge angle and AA is acetabular angle (panel B)
Table 1. Radiographic measurements in 60 patients (78 abnormal hips and 42 normal hips) with late-detected hip dislocation. Results are given as mean (SD)
Table 2. Radiographic results according to the Severin classification
Figure 3. Radiographs of a girl with a Spitzy shelf operation at the age of 12 years. Panel A shows acetabular dysplasia of the right hip before the shelf procedure was performed. Panel B, taken at the age of 17 years, indicates that the operation has given an adequate acetabular roof. Panel C shows no signs of osteoarthrosis at the age of 33 years.
Table 3. Radiographic parameters at the time of diagnosis and follow-up according to the outcome at skeletal maturity. Satisfactory outcome corresponds to Severin groups I–II; unsatisfactory outcome corresponds to Severin groups III–V. Results are given as mean (SD)