Long-term survival analysis of cementless large-diameter head metal-on-metal total hip arthroplasty.
Arch Orthop Trauma Surg
; 143(7): 4437-4446, 2023 Jul.
Article
em En
| MEDLINE
| ID: mdl-36197490
ABSTRACT
INTRODUCTION:
The aim of this retrospective study was to study the long-term survival and reasons for revisions of a single-type, large-diameter head (LDH) metal-on-metal (MoM) implant. A special study interest was to find the threshold level for revision in terms of adverse reaction to metal debris (ARMD). MATERIALS ANDMETHODS:
In this cohort study, we retrospectively reviewed 234 patients (253 hips) who received 38 mm head size LDH MoM total hip arthroplasties (THAs) between 01 January 2004 and 31 December 2009 at our institution. Patient symptoms, conventional radiographs, magnetic resonance imaging (MRI) findings and whole blood metal ions were studied.RESULTS:
The median follow-up time was 11.5 years. The Kaplan-Meier cumulative survival estimate of the implant was 89.6% at 10 years and 82.9% at 14.6 years. Overall, 34/253 (13.4%) hips were revised during the follow-up period and of these; 19/34 (55.9%) were revised due to ARMD. The prevalence of ARMD was 12.4% (29/234 patients).CONCLUSIONS:
The survival of the implant was on a moderate level as the 10-year cumulative survival rate was 89.6%. The exact threshold level for ARMD revision cannot be determined due to multiple variables affecting factors in re-operation decision-making.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Artroplastia de Quadril
/
Próteses Articulares Metal-Metal
/
Prótese de Quadril
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Arch Orthop Trauma Surg
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Finlândia