The incidence of occult dysplasia of the contralateral hip in children with unilateral hip dysplasia
The incidence of occult dysplasia of the contralateral hip in children with unilateral hip dysplasia
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DOI：
10.1097/bpo.0b013e318164ee2d
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发表时间：
2008-03-01
影响因子：
1.7
通讯作者：
Dulka, Susan E.
中科院分区：
文献类型：
--
作者：
Song, Frederick S.;McCarthy, James J.;Dulka, Susan E.
背景资料：本研究的目的是确定对侧髋关节发育不良的发病率在儿童与单侧hip dysplasia.Methods：我们回顾了所有患者的髋关节发育不良（DDH）谁在我们的机构进行评估，直到骨骼成熟（至少13岁）。在对侧（“正常”）髋关节，髋臼角>46度，中心边缘角20%的放射学测量被认为是abnormal.Results：在研究的43例患者中，18例（42%）被诊断为双侧髋关节发育不良作为一个婴儿或幼儿，8在首次访问，10后重复评估。25例患者没有对侧髋关节发育不良的证据，即使在重复检查。在该组中，10/25例（40%）在成熟时有轻度髋臼发育不良（平均中心边缘角，31度;髋臼角，43度;和迁移指数，14%）。在这组中没有孩子被诊断为显着的髋关节发育不良在骨骼成熟，需要treatment to date.Discussion：本研究的结果表明，轻度髋臼发育不良发生在对侧髋关节的成熟度高达40%的患者诊断为单侧DDH，即使当对侧髋关节作为一个孩子仔细评估。轻度髋臼发育不良的意义尚不明确，但间歇性评估DDH儿童对侧髋关节似乎是谨慎的。证据等级：IV。
Background: The purpose of this study is to determine the incidence of contralateral hip dysplasia in children with unilateral hip dysplasia.Methods: We reviewed all patients with developmental dysplasia of the hip (DDH) who were evaluated at our institution until skeletal maturity (at least age 13 years). In the contralateral ("normal") hip, radiographic measurements of the acetabular angle >46 degrees, center edge angle 20% were considered abnormal.Results: Of the 43 patients in the study, 18 (42%) were diagnosed with bilateral hip dysplasia as an infant or toddler; 8 on the initial visit, and 10 after repeated evaluations. Twenty-five patients had no evidence of contralateral hip dysplasia, even on repeated examinations. Of this group, 10 of 25 (40%) had mild acetabular dysplasia at maturity (mean center edge angle, 31 degrees; acetabular angle, 43 degrees; and migration index, 14%). No child in this group was diagnosed with significant hip dysplasia at skeletal maturity that required treatment to date.Discussion: The results of this study indicated that mild acetabular dysplasia occurs at maturity in the contralateral hip in up to 40% of patients diagnosed with unilateral DDH, even when the contralateral hip was carefully evaluated as a child. The significance of mild acetabular dysplasia is not well defined, but intermittent evaluation of the contralateral hip in children with DDH would seem prudent.Level of Evidence: IV.