RESEARCH ARTICLE
10-Year Survival of Acetabular Reinforcement Rings/Cages for Complex Hip Arthroplasty
Alexander Ewers, Christian Spross, Lukas Ebneter, Fabrice Külling, Karlmeinrad Giesinger, Vilijam Zdravkovic, Johannes Erhardt*
Article Information
Identifiers and Pagination:
Year: 2015Volume: 9
First Page: 163
Last Page: 167
Publisher ID: TOORTHJ-9-163
DOI: 10.2174/1874325001509010163
Article History:
Received Date: 14/10/2014Revision Received Date: 31/3/2015
Acceptance Date: 10/4/2015
Electronic publication date: 15/5/2015
Collection year: 2015
open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Abstract
Introduction :
Acetabular reinforcement rings/ cages (AR) are commonly used for reconstruction of bone defects in complex hip arthroplasty. The aim of this study was to retrospectively investigate the 10-year survival rate of Ganz reinforcement rings and Burch-Schneider cages used in a single institution.
Material and Methods :
Between September 1999 and June 2002 all ARs, implanted in one institution, were identified. All patients had regular clinical and radiographic follow-up and were included in this study. Their prospectively collected clinical and radiographic data was retrospectively analyzed. In case of death before the 10-year follow-up examination, patient’s families or their general practitioner was contacted by telephone. The main outcome measures were survival of the ARs and kind of revision surgery.
Results :
The 10-year survival rate was 77.7%. At 10-year follow-up, 5/60 (8,3%) patients could not be located and had to be excluded therefore. 27/55 (49,1%) were dead, whereof 22 had no revision of the ARs before death (after a mean of 66 months; range: 0 - 123). Of the remaining 28/55 (50,9%) patients, 23 patients (24 ARs) had no revision of the ARs.
Conclusion :
Despite the high mortality rate of this study’s collective, ARs for complex primary or revision total hip arthroplasty provided predictable long term results.
Level of Evidence :
Clinical investigation.
