Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Arthroplasty - Hip
Abstract number: 23617
LONG-TERM RESULTS FOR UNCEMENTED TOTAL HIP ARTHROPLASTY WITH
THE CLS SPOTORNO SYSTEM.
Henk VERMEER 1 , Pieter Bas DE WITTE 2 , Ronald BRAND 2 , Lex BARNAART 3
1 Meander Medical Center, Amersfoort (NETHERLANDS), 2 Leiden University Medical
Center, Orthopaedics department, Leiden (NETHERLANDS), 3 Deventer Hospital,
Deventer (NETHERLANDS)
BACKGROUND: There are no published non-designer long-term results of the
cementless CLS-Spotorno total hip arthroplasty (THA) system. In this prospective
study, we present 10-17 years results. METHODS: We studied 102 consecutive
THA’s with a minimal follow-up of 10 years. Merle-d’Aubigné score,
polyethylene(PE)-wear, and radiographic status were recorded at regular
moments.Survival analyses, repeated measurements analysis of variance, and a
nested case-control study (cases: revision for aseptic cup-loosening within 10 years,
controls: no revision) were used for evaluation. RESULTS: 15-Years Kaplan-Meier
survival-rates were 78.4% (95%-CI = 63.9-92.9) for revision for any reason, 81.6%
(95%-CI = 66.7-96.5) for revision for aseptic acetabular component loosening, and
99.0% (95%-CI = 97.0-100.0) for revision for aseptic stem-loosening. Factors with
significant effect sizes on PE-wear (mm) were older age (-0.03 per year increase,
p=0.001) and head component size (0.53, p