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Developmental dysplasia of the hip (DDH) has replaced the term congenital dislocation of the hip, because the DDH can more accurately reflect all category of leading to immature hip deformity.


To review research progress of characteristics, risk factors and research methods of the DDH.


The articles related to diagnosis, clinical screening, medical examination, physical examination and treatment of DDH from PubMed and Chinese journal full-text databases between January 2006 and September 2011 were retrieved by the computer with the key words of “developmental dysplasia of the hip, examination and treatment” in English and “the developmentally hip dysplasia, check, treatment” in Chinese. Repetitive researches were excluded, and a total of 27 articles were summarized in this paper.


Hip judge risk factors of the DDH includes first exposed and family history, the disease diagnosis is built on the basis of the physical examination. Hip instability, limbs length discrepancy and thigh skin creases asymmetric all can appear in neonatal developmentally dislocation of the hip cases. However unsteady gait and hip outreach are limited in older children becomes more common. Ultrasonic scanning technology inspection exists certain controversial, however, once the diagnosis establishes usually can be used to test and evaluate the development conditions of the hip. Orthosis is the most important means for children under six months. Surgery treatment is suitable for children aged more than 6 months undergoing unsuccessful conservative treatment. Early diagnosis of DDH is very important to improve the treatment, and reduce the risk of complications.


Li WP, Wang HM. Developmental dysplasia of the hip.Zhongguo Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu. 2011;15(52): 9851-9854. [http://www.crter.cn]

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