Dual mobility acetabular component in revision total hip arthroplasty for persistent dislocation: no dislocations in 50 hips after 1–5 years

被引：48

作者：

van Heumen M. ^{[1
]}

Heesterbeek P.J.C. ^{[2
]}

Swierstra B.A. ^{[1
]}

Van Hellemondt G.G. ^{[1
]}

Goosen J.H.M. ^{[1
]}

机构：

[1] Department of Orthopaedic Surgery, Sint Maartenskliniek, PO Box 9011, Nijmegen

[2] Department of Research, Sint Maartenskliniek, Nijmegen

来源：

Journal of Orthopaedics and Traumatology | 2015年 / 16卷 / 1期

关键词：

Dislocation; Dual mobility cup; Implant survival; Revision hip arthroplasty;

D O I：

10.1007/s10195-014-0318-7

中图分类号：

学科分类号：

摘要：

Background: A dual mobility cup has the theoretic potential to improve stability in primary total hip arthroplasty (THA) and mid-term cohort results are favorable. We hypothesized that use of a new-generation dual mobility cup in revision arthroplasty prevents dislocation in patients with a history of recurrent dislocation of the THA.; Materials and methods: We performed a retrospective cohort study of patients receiving an isolated acetabular revision with a dual mobility cup for recurrent dislocation of the prosthesis with a minimum follow-up of 1 year. Kaplan–Meier survival analyses were performed with dislocation as a primary endpoint and re-revision for any reason as a secondary endpoint.; Results: Forty-nine consecutive patients (50 hips) were included; none of the patients was lost to follow-up. The median follow-up was 29 months (range 12–66 months). Two patients died from unrelated causes. Survival after 56 months was 100 % based on dislocation and 93 % (95 % CI 79–98 %) based on re-revision for any reason. Radiologic analysis revealed no osteolysis or radiolucent lines around the acetabular component during the follow-up period.; Conclusion: The dual mobility cup is an efficient solution for instability of THA with a favorable implant survival at 56 months.; Level of evidence: Level 4, retrospective case series. © 2014, The Author(s).

引用

页码：15 / 20

页数：5

共 25 条

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