髋关节发育不良

髋关节发育不良（Developmental dysplasia of the hip，DDH）既往又称先天性髋关节脱位（Congenital dislocation of the hip，CDH）、发育性髋关节脱位（Developmental dislocation of the hip，DDH）、先天性髋关节半脱位（C0ngenital subdislocation of the hip）、髋臼发育不良（Dysplasia of acetabulum），