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Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_3 | Pages 8 - 8
1 Apr 2018
Marques E Fawsitt C Thom H Hunt LP Nemes S Lopez-Lopez J Beswick A Burston A Higgins JP Hollingworth W Welton NJ Rolfson O Garellick G Blom AW
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Background

Prosthetic implants used in primary total hip replacements have a range of bearing surface combinations (metal-on-polyethylene, ceramic-on-polyethylene, ceramic-on-ceramic, metal-on-metal); head sizes (small <36mm, large 36mm+); and fixation techniques (cemented, uncemented, hybrid, reverse hybrid), which influence prosthesis survival, patient quality of life, and healthcare costs. This study compared the lifetime cost-effectiveness of implants to determine the optimal choice for patients of different age and gender profiles.

Methods

In an economic decision Markov model, the probability that patients required one or more revision surgeries was estimated from analyses of UK and Swedish hip joint registries, for males and females aged <55, 55–64, 65–74, 75–84, and 85+ years. Implant and healthcare costs were estimated from hospital procurement prices, national tariffs, and the literature. Quality-adjusted life years were calculated using utility estimates, taken from Patient-Reported Outcome Measures data for hip procedures in the UK.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_11 | Pages 33 - 33
1 Jul 2014
Perez-Jorge C Perez-Tanoira R Lozano D Conde A Arenas M Hernandez-Lopez J De-Damborenea J Gomez-Barrena E Esbrit P Esteban J
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Summary Statement

Description of an original in vitro protocol for assessing combined bacteria and cell competitive adherence on the surface of biomaterials of medical interest

Objectives

Biomaterial-related infections are a major clinical problem. The pathogenesis of this syndrome has been described as a competitive adherence between bacteria and human cells in the so-called “race for the surface” theory. The aim of this study is to develop an in vitro protocol method that can be used to investigate this competence and its implications in the development of materials aimed to be used in orthopedic surgery.