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General Orthopaedics

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Orthopaedic Proceedings
Vol. 104-B, Issue SUPP_1 | Pages 10 - 10
1 Jan 2022
Sobti A Jaffry Z Raj S Yiu A Negida A Singh B Brennan P Imam M Collaborative O
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Abstract

Background

Healthcare workers have had to make rapid and drastic adjustments to their practice in response to the COVID-19 pandemic. This work describes the effect on their physical, mental, financial and family well-being and assesses the support provided by their institutions.

Methods

An online survey was distributed through medical organisations, social media platforms and collaborators to staff based in an operating theatre environment.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_III | Pages 49 - 49
1 Feb 2012
Wimsey S Lien C Sharma S Brennan P Harper G Gorecki D
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Introduction

Osteoarthritis (OA) has historically been thought of as a degenerative joint disease, but inflammation and angiogenesis are increasingly being recognised as contributing to the pathogenesis, symptoms and progression of OA. b-dystroglycan (b-DG) is a pivotal element of the transmembrane adhesion molecule involved in cell-extracellular matrix adhesion and angiogenesis. Matrix metalloproteinases (MMPs) are the main enzymes responsible for cartilage extracellular matrix breakdown and are also implicated in both angiogenesis and b-DG degradation in a number of malignancies. We aimed to investigate the expression and localisation of b-DG and MMP-3, -9, and -13 within cartilage, synovium and synovial fluid and establish their roles in the pathogenesis of OA.

Methods

Following ethical committee approval, cartilage, synovium and synovial fluid were obtained from the hip joints of 5 osteoarthritic (patients undergoing total hip replacement) and 5 control hip joints (patients undergoing hemiarthroplasty for femoral neck fracture). The samples were analysed for b-DG expression using Western Blotting and for the distribution of b-DG, MMP-3, -9, and -13 using immunohistochemistry on paraffin embedded tissue.