نتایج جستجو برای: orthopaedic implant

تعداد نتایج: 58414  

2017
Kevin Tetsworth Steve Block Vaida Glatt

3D printing technology has revolutionized and gradually transformed manufacturing across a broad spectrum of industries, including healthcare. Nowhere is this more apparent than in orthopaedics with many surgeons already incorporating aspects of 3D modelling and virtual procedures into their routine clinical practice. As a more extreme application, patient-specific 3D printed titanium truss cag...

Journal: :The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons 2011
Sandro Giannini Matteo Romagnoli John J O'Connor Fabio Catani Livio Nogarin Bruno Magnan Francesco Malerba Leo Massari Marco Guelfi Luigi Milano Antonio Volpe Arturo Rebeccato Alberto Leardini

A new design for a 3-part ankle replacement was developed in an effort to achieve compatibility with the naturally occurring ligaments of the ankle by allowing certain fibers to remain isometric during passive motion. In order to test the design concept clinically, 158 prostheses were implanted in 156 patients within a 9-center trial and were followed up for a mean of 17 (range 6 to 48) months....

2014
Jim C. E. Odekerken Geert H. I. M. Walenkamp Boudewijn T. Brans Tim J. M. Welting Jacobus J. C. Arts

INTRODUCTION Osteomyelitis is a severe orthopaedic complication which is difficult to diagnose and treat. Previous experimental studies mainly focussed on evaluating osteomyelitis in the presence of an implant or used a sclerosing agent to promote infection onset. In contrast, we focused on the longitudinal assessment of a nonimplant related osteomyelitis. METHODS An intramedullary tibial inf...

2017
Emmet Galvin Swarna Jaiswal Caitríona Lally Bryan MacDonald Brendan Duffy

Bioabsorbable magnesium (Mg) alloys have several advantages in biomedical implant applications as they reduce certain risks associated with conventional permanent implants. However, limited information is available for WE43 Mg alloy specimens with comparable size to that of biomedical implants such as cardiovascular stents and orthopaedic wires. The present work examines the corrosion and biolo...

2012
Mohamed Mansour Elzohairy

Comminuted subtrochanteric femoral fractures are considered as one of the most difficult fracture to treat for the orthopaedic surgeons [1,2,3,4]. Until now there is no agreement in the orthopaedic literatures for the best method to manage such complicated fractures [2,4,5]. The biological fixation is considered now as one of the golden solutions for this complicated fracture. The aim of biolog...

Maryam Aryana, Nahid Hassanzadeh Nemati Shiva Yasini,

Different methods have been evaluated for manufacturing the porous Ti6Al4V alloys according to decreasing stress shielding phenomenon and increasing mechanical compatibility between the metallic components and the host tissue. For this purpose, in this work Ti6Al4V alloy chips were pressed under 400 MPa pressure and then samples were categorized and heated into two groups at 1000 and 1150℃ unde...

Journal: :Journal of the mechanical behavior of biomedical materials 2011
P J Prendergast P E Galibarov C Lowery A B Lennon

Computational modelling is becoming ever more important for obtaining regulatory approval for new medical devices. An accepted approach is to infer performance in a population from an analysis conducted for an idealised or 'average' patient; we present here a method for predicting the performance of an orthopaedic implant when released into a population--effectively simulating a clinical trial....

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