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Abstract：
BACKGROUND: Developmental dysplasia of the hip (DDH) is one of the most common pediatric conditions. The current gold-standard treatment for children under six months of age with a reducible hip is bracing, but the orthopedic literature features several splint options, and each one has many advantages and disadvantages. The aim of this review is to analyze the available literature to document the up-to-date evidence on DDH conservative treatment.
METHODS: A systematic review of PubMed and Science Direct databases was performed by two independent authors (C.d.C. and A.V.) using the keywords \"developmental dysplasia hip\", \"brace\", \"harness\", \"splint\", \"abduction brace\" to evaluate studies of any level of evidence that reported clinical or preclinical results and dealt with conservative DDH treatment. The result of every stage was reviewed and approved by the senior investigators (V.P. and G.T.).
RESULTS: A total of 1411 articles were found. After the exclusion of duplicates, 367 articles were selected. At the end of the first screening, following the previously described selection criteria, we selected 29 articles eligible for full text reading. The included articles mainly focus on the Pavlik harness, Frejka, and Tubingen among the dynamic splint applications as well as the rhino-style brace, Ilfeld and generic abduction brace among the static splint applications. The main findings of the included articles were summarized.
CONCLUSIONS: Dynamic splinting for DDH represents a valid therapeutic option in cases of instability and dislocation, especially if applied within 4-5 months of life. Dynamic splinting has a low contraindication. Static bracing is an effective option too, but only for stable hips or residual acetabular dysplasia.
METHODS: A systematic review of PubMed and Science Direct databases was performed by two independent authors (C.d.C. and A.V.) using the keywords \"developmental dysplasia hip\", \"brace\", \"harness\", \"splint\", \"abduction brace\" to evaluate studies of any level of evidence that reported clinical or preclinical results and dealt with conservative DDH treatment. The result of every stage was reviewed and approved by the senior investigators (V.P. and G.T.).
RESULTS: A total of 1411 articles were found. After the exclusion of duplicates, 367 articles were selected. At the end of the first screening, following the previously described selection criteria, we selected 29 articles eligible for full text reading. The included articles mainly focus on the Pavlik harness, Frejka, and Tubingen among the dynamic splint applications as well as the rhino-style brace, Ilfeld and generic abduction brace among the static splint applications. The main findings of the included articles were summarized.
CONCLUSIONS: Dynamic splinting for DDH represents a valid therapeutic option in cases of instability and dislocation, especially if applied within 4-5 months of life. Dynamic splinting has a low contraindication. Static bracing is an effective option too, but only for stable hips or residual acetabular dysplasia.
摘要：
背景：发育性髋关节发育不良（DDH）是最常见的儿科疾病之一。目前对6个月以下髋关节可缩小儿童的黄金标准治疗方法是支撑，但是骨科文献有几种夹板选择，每一个都有许多优点和缺点。这篇综述的目的是分析现有文献，以记录DDH保守治疗的最新证据。
方法：由两名独立作者（C.d.C.和A.V.）使用关键字“发育性髋关节发育不良”对PubMed和ScienceDirect数据库进行了系统综述，\"括号\",\"线束\",\"夹板\",“外展支架”用于评估报告临床或临床前结果并处理保守DDH治疗的任何水平证据的研究。每个阶段的结果都由高级研究者（V.P.和G.T.）审查和批准。
结果：共发现1411篇。排除重复项之后,共入选367篇。在第一次筛选结束时，遵循前面描述的选择标准，我们选择了29篇符合全文阅读条件的文章。收录的文章主要集中在Pavlik线束上，Frejka,和图宾根在动态夹板应用以及犀牛式支架中，静态夹板应用中的Ilfeld和通用外展支架。总结了本文的主要发现。
结论：在不稳定和脱位的情况下，DDH的动态夹板是一种有效的治疗选择，特别是如果应用在4-5个月的生活。动态夹板具有低禁忌症。静态支撑也是一个有效的选择，但仅限于髋部稳定或残余髋臼发育不良。
方法：由两名独立作者（C.d.C.和A.V.）使用关键字“发育性髋关节发育不良”对PubMed和ScienceDirect数据库进行了系统综述，\"括号\",\"线束\",\"夹板\",“外展支架”用于评估报告临床或临床前结果并处理保守DDH治疗的任何水平证据的研究。每个阶段的结果都由高级研究者（V.P.和G.T.）审查和批准。
结果：共发现1411篇。排除重复项之后,共入选367篇。在第一次筛选结束时，遵循前面描述的选择标准，我们选择了29篇符合全文阅读条件的文章。收录的文章主要集中在Pavlik线束上，Frejka,和图宾根在动态夹板应用以及犀牛式支架中，静态夹板应用中的Ilfeld和通用外展支架。总结了本文的主要发现。
结论：在不稳定和脱位的情况下，DDH的动态夹板是一种有效的治疗选择，特别是如果应用在4-5个月的生活。动态夹板具有低禁忌症。静态支撑也是一个有效的选择，但仅限于髋部稳定或残余髋臼发育不良。
