Multicenter Evaluation of a Modular Dual Mobility Constructor Revision Total Hip Arthroplasty
Multicenter Evaluation of a Modular Dual Mobility Constructor Revision Total Hip Arthroplasty
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DOI：
10.1016/j.arth.2019.03.027
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发表时间：
2019-07-01
影响因子：
3.5
通讯作者：
Westrich, Geoffrey H.
中科院分区：
文献类型：
--
作者：
Huang, Ronald C.;Malkani, Art L.;Westrich, Geoffrey H.
简介：与约束衬垫相比，全髋关节置换术 (THA) 中的模块化双活动 (MDM) 结构可提高髋部稳定性，且不会影响髋部活动范围。本研究的目的是评估使用 MDM 进行 THA 翻修的结果。方法：该研究是一项多机构回顾性队列研究，研究对象为 2011 年至 2017 年间接受 MDM 翻修 THA 的 315 个髋关节。收集临床结果和失败原因。结果：315 名患者至少完成 1 年随访（平均 3.3 年）。 9 个髋关节术后不稳定（2.9%），30 个髋关节需要再次手术（9.5%）。 7 例出现反复不稳定 (6.5%)，这与仅更换内衬 (P =.021) 和内衬外径有关
Introduction: Modular Dual Mobility (MDM) constructs in total hip arthroplasty (THA) offer increased hip stability compared with constrained liners, without compromising hip range of motion. The purpose of this study was to evaluate outcomes of revision THA using MDM.Methods: The study was a multiinstitutional retrospective cohort study of 315 hips that underwent revision THA using MDM between 2011 and 2017. Clinical outcomes and reasons for failure were collected.Results: Three hundred fifteen patients met 1-year minimum follow-up (mean 3.3 years). Nine hips had instability postoperatively (2.9%), and 30 hips required reoperation (9.5%). Seven had recurrent instability (6.5%) which was associated with liner-only exchange (P =.021) and liner outer diameter of