Radiologic measurement was made in 96 hips of 96 female patients with congenital dislocation of the hip (CDH) treated only with the Pavlik harness before reaching age 6 months until time of maturity. Radiographs were retrospectively examined to determine whether prognosis of the hip joints was predictable up to approximately 3 years of age. Highly accurate prediction was possible using multivariate analysis. The patient group assessed as "satisfactory" with discriminant analysis had an incidence of Severin's classification of group III or lower of < 1% of significance level. This analysis appears to be a useful screening method for judging CDH after treatment.

Child, Preschool↗

PubMedDate not supplied

Coxa magna after open reduction for developmental dislocation of the hip.

We studied coxa magna after open reduction of developmental hip dislocation, including the etiology, incidence, and influence on the long-term results and acetabular development. Forty-seven hips in 47 patients were radiographically examined for at least 10 years, and another 20 hips in 20 patients were examined arthrographically at an early stage after open reduction. At follow-up, the incidence of coxa magna, which was defined as a femoral head with a size > or = 20% greater than the opposite side, was 34.0%, and that seemed to be one of factors that worsened the long-term results. One of the most important causes of coxa magna is to overwiden the acetabular capacity by excising the limbus; another cause is the surgical invasion and synovitis of the hip joint after operation.

Child, Preschool↗

PubMedDate not supplied

Long-term follow-up of congenital subluxation of the hip.

SUMMARY: This is a retrospective study of long-term radiographic results for congenital subluxation of the hip (CSH) after closed reduction at the authors' hospital from 1963 to 1980. The age at final follow-up ranged from 14.0 to 33.9 years (average 19.1). The diagnosis of CSH was determined radiographically using Ishida criteria. The center-edge angle (CE angle) and the Sharp angle were measured serially, and the final results were evaluated using Severin classification, and evaluation of avascular necrosis used the classification of Kalamchi and MacEwen. Sixty-nine (26.3%) of 262 hips with CSH were rated as Severin group III or IV. Avascular necrosis was found in 12 hips (4.6%). The CE angle of unaffected hips had strong correlation with that of affected hips. These late results were not satisfactory and indicate that patients with CSH should be followed up at least until skeletal maturity, as is done with complete hip dislocation.

Aftercare↗