髋关节发育不良是指髋臼或股骨头的形状大小以及他们之间的关系存在发育异常。多数学者认为该疾病除先天性因素外,后天性因素也起主要作用,是可以预防的疾病〔1、2〕。髋关节发育不良是小儿最常见的四肢畸形,并且世所公认,其治疗的关键是早期诊断和及时治疗,若能在新生儿时期发 Hip dysplasia refers to the shape and size of the acetabulum or femoral head and their relationship between the existence of dysplasia. Most scholars believe that the disease in addition to congenital factors, acquired factors also play a major role, is a preventable disease [1,2]. Hip dysplasia is the most common limb deformities in children, and the world recognized that the key to its treatment is the early diagnosis and timely treatment, if the period in the newborn