CONGENITAL DISLOCATION OF THE HIP

[摘要] Physical and roentgen examinations were performed on 227 nine month old Japanese infants to discover all cases of congenital dislocation of the hip. Twenty-seven cases were found in which the roentgenograms of the hips were interpreted as abnormal; of these, 15 showed only lack of calcification of the acetabular rim, and the other 12 showed some degree of displacement of the femoral head, in addition to the deficiently calcified acetabulum.A large percentage of these 27 infants had no physical signs relative to hip deformity.Repeat examinations at 18 months and 25 months of age demonstrated that all infants with only deficient acetabular calcification and 7 of 12 with some displacement of the femoral head had either healed completely or showed marked improvement without treatment. Five cases had persistent and aggravated dislocation of the hip.Limitation of abduction of the flexed thighs is the most consistent and valuable sign of congenital dislocation of the hips, and this is in accord with other investigators' conclusions.It is proposed that inadequate muscular and ligamentous support to the hip joint is the primary physiologic defect in congenital dislocation of the hip. This view is important in that it serves to direct attention to the fact that early support to the hip without immobilization of the infant is the most desirable therapy—from a physiologic standpoint—which will prevent deformity of the bony parts of the joint.

[学科分类] 儿科学