先天性髋脱位病儿的髋臼发育不良,若在幼年使股骨头复位,对髋臼起一定的压力作用,能促使其发育趋向正常。年龄越小效果越好。在1岁以内得到整复者,96％病儿的髋臼可正常发育;在1～2岁间整复者,仅55％病儿可得到正常发育的髋臼;超过2岁才作整复者,仅20％病儿的髋臼发育正常。 Acetabular dysplasia in children with congenital hip dislocation, if the reduction of the femoral head in childhood, the acetabular pressure from a certain role, can promote its development to normal. The younger the better. Within 1 year old, the acetabulum can be normally developed in 96% of sick children. In the aged 1-2 years old, only 55% of the sick children can get the normal development of the acetabulum. For those older than 2 years old, Only 20% of sick children have normal acetabular development.