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*
Identifiers and Pagination:Year: 2015
First Page: 163
Last Page: 167
Publisher Id: TOORTHJ-9-163
Article History:Received Date: 14/10/2014
Revision 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.
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.
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.
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 :