Two-year radiologic assessment of the Pinnacle cup-a migration analysis with EBRA.
Arch Orthop Trauma Surg
; 141(1): 149-154, 2021 Jan.
Article
em En
| MEDLINE
| ID: mdl-33128095
ABSTRACT
INTRODUCTION:
The most common cause of failure in total hip arthroplasty (THA) is aseptic loosening. Uncemented cup migration analysis by EBRA (Einzel-Bild-Roentgen-Analyse) has shown to be a good predictive indicator for early implant failure if the cup migrates more than 1 milimeter (mm) within the first 2 years after surgery. In this study, we investigated the migration behaviour of an uncemented press-fit cup after 2 years follow-up. MATERIALS ANDMETHODS:
Applying a retrospective study design, we reviewed all consecutive patients who received an uncemented press-fit cup at our Department between 2013 and 2018. A total of 484 patients were identified. We reviewed medical histories and performed radiological measurements using EBRA-Cup software. EBRA measurements and statistical investigations were performed by two independent investigators.RESULTS:
A total of 165 cups in 159 patients (female 90; male 69) met our inclusion criteria. Mean age at surgery was 66.7 (range 18.4-90.5) years. EBRA migration analysis showed a mean total migration of 0.7 mm (range 0.0-6.3) over our follow-up period of 2 years. Of the investigated cups, 53.2% showed less than 1 mm migration in the investigated follow-up period.CONCLUSION:
In conclusion, the Pinnacle cup used in our study provides low mean migration at final follow-up. Based on the assumption of secondary stabilization, good long-term outcome of the Pinnacle cup can be expected. TRIAL REGISTRATION NUMBER AND DATE OF REGISTRATION Number 20181024-1875; Date 2018-09-20.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Complicações Pós-Operatórias
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Falha de Prótese
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Radiografia
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Artroplastia de Quadril
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Prótese de Quadril
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article