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髋关节发育不良(DDH)是婴幼儿时期一种常见的骨科疾病,发病率为1‰～2‰。其是由股骨头和(或)髋臼的大小、形态、取向和(或)组织构成异常导致,通常指关节囊松弛和(或)髋臼太浅。DDH可导致膝关节不稳定、关节疼痛、步态异常及早发型骨性关节炎,因此早期预防、早期诊断和早期治疗显得尤为重要。预防该病必须了解病因,而遗传因素是DDH的重要病因之一。
Hip dysplasia (DDH) is a common orthopedic disease in infancy, with a prevalence of 1 ‰ to 2 ‰. It is caused by the size, shape, orientation, and / or abnormal tissue formation of the femoral head and / or acetabulum, often referred to as the sagging of the joint capsule and / or the shallowness of the acetabulum. DDH can lead to instability of the knee joint pain, abnormal gait and early osteoarthritis, so early prevention, early diagnosis and early treatment is particularly important. Prevention of the disease must understand the etiology, and genetic factors is one of the important causes of DDH.