先天性髋脱位是小儿最常见的四肢畸形。随着新生儿筛查计划及超声技术的应用 ,早期发现 ,早期治疗 ,可取得令人满意的结果。但仍有部分患儿由于存在持续的髋关节发育不良 ,尤其是治疗后残余的髋臼发育不良 ,在青春期或成人早期发生髋关节骨关节炎。根据目前的估计 ,近 76.0 %的 Congenital dislocation of the hip is the most common limb deformity in children. With the newborn screening program and the application of ultrasound technology, early detection and early treatment can achieve satisfactory results. However, there are still some children due to the existence of persistent hip dysplasia, especially after treatment of residual acetabular dysplasia, occurs in adolescent or adult early osteoarthritis of the knee. According to the current estimates, nearly 76.0% of them