Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Arthroplasty - Hip
Abstract number: 26012
A RETROSPECTIVE ANALYSIS OF REVISION THR FOR COMPONENT
INSTABILITY
Nikolai ZAGORODNIY, Inar SEIDOV, Kyrillos HADJICHARALAMBOUS, Denis
ELKIN, Sergei BEZVERKHIY
Peoples’ Friendship University of Russia, Chair of Traumatology & Orthopaedics,
Moscow (RUSSIA)
A retrospective analysis of revision THR performed for various kinds of instability
from January 2005 till December 2009 by three experienced surgeons was carried
out at our institute. During the specified period, 2170 THR were performed on 1862
patients. Among them were 67 (0.035 %), revision THR. The mean age of the
patients at the time of the operation was 59 years (41 to 90). The cohort included 44
women and 23 men. The time that had passed from primary implantation until
revision varied from 3 days up to 32 years. Implants that were revised included:
Mura-TSITO (USSR), the Movshovich-Gavrjushchenko prosthesis (USSR), the Sfen
(Implant-MT, RUSSIA), Elite (Implant-MT, RUSSIA), CLS (Sulzer, Germany), Mueller
(Zimmer, USA) Versys ET (Zimmer, USA), Beznoska (Chm, Poland), McKee Farrar
(USA), and 3 cases unknown implants were removed. At revision, we used the
following stems: Ilza (Implant-MT, RUSSIA), Cerafit (Ceraver, FRANCE), Corail (De-
PUY, USA), Mueller (Zimmer, USA), Taperlock (Biomet, USA), Wagner revision Stem
(Zimmer, USA) were implanted. The indications for revision included: dislocation of
the ceramic inlay - 2, leg length discrepancy due to shallow placement of the
acetabular component- 1, acetabular instability-16, femoral instability-9, instability of
both components-20, periprosthetic fractures-3, recurrent dislocations-16. Analysis
indicates that further development of implant design and manufacturing technology is
needed in order to improve the tribological and functional properties of implants, in
order to provide better care for our patients.
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