Modes of failure of Trifecta aortic valve prosthesis
Abstract OBJECTIVES Several concerns have been recently raised regarding the durability of Trifecta prostheses. Different mechanisms of early failure were reported. Our aim was to study in a large population the modes of failure of Trifecta valves.
Pietro Giorgio Malvindi+3 more
openaire +2 more sources
Catastrophic failure of a monolithic zirconia prosthesis
Recently, monolithic zirconia restorations have received attention as an alternative to zirconia veneered with feldspathic porcelain to eliminate chipping failures of veneer ceramics. In this clinical report, a patient with mandibular edentulism received 4 dental implants in the interforaminal area, and a screw-retained monolithic zirconia prosthesis ...
Woon Ji+3 more
openaire +4 more sources
Early stenotic prosthesis failure after implantation of a stentless porcine aortic valve prosthesis [PDF]
Stentless biological aortic prostheses are used routinely in aortic valve replacement surgery, offering beneficial hemodynamics compared to stented biological valves of similar size. We report here a rare case of early stenotic prosthesis failure of a RootElan stentless porcine aortic valve prosthesis due to swelling at the bottom of the right coronary
Peter Donndorf+2 more
openaire +3 more sources
Failure analysis of a Ti6Al4V cementless HIP prosthesis
This work investigates the causes of in vivo fracture of a cementless hip prosthesis model manufactured with Ti6A14V alloy. To this end an assessment of geometric characteristics, a fractographic analysis of the fracture surface, and a microstructural study of the stem material were carried out.
Chao, Jesús, López, Víctor
openaire +3 more sources
Total femur prosthesis in oncological and not oncological series. Survival and failures [PDF]
Total femur prosthesis (TFP) can be used in both oncological and prosthetic revision surgery. A retrospective analysis of 32 patients receiving a TFP at a single Center between 2002 and 2018 was performed. The average follow-up was 60 months. Revision implant free survival (RIFS) of the implants was 87% at 5 and 10 years and 72% at 15 years.
Muratori, Francesco+7 more
openaire +5 more sources
Failure of Beall mitral valve prosthesis
This report presents a case of severe dysfunction of an improved Model 104 Beall valve secondary to disc wear. This type of valve failure may be extremely difficult to detect by auscultation, echocardiography, or fluoroscopic examination. Prosthesis failure with resulting mitral insufficiency should be considered in any patient with a Teflon disc Beall
R. Gilbert Jost+2 more
openaire +3 more sources
Mechanism of late failure of the Alvarez disc valve prosthesis. [PDF]
An Alvarez disc valve prosthesis had been implanted in the mitral and tricuspid positions in 15 patients between 1964 and 1967 in this hospital. Of these 15 patients, only three survived longer than 10 years, all three dying unexpectedly between 16 and 18 years postoperatively.
A. Schofield+5 more
openaire +2 more sources
Implant failure of the Compress prosthesis: a case report
BACKGROUND: The Compress is designed to achieve bone formation and stability by applying pressure at the bone–implant interface, minimizing the likelihood of aseptic loosening, which is a complication of stem implants. Herein, we report two cases of implant failure using the Compress.
Hiroshi Koike+6 more
openaire +2 more sources
Transcatheter mitral valve replacement versus redo surgery for mitral prosthesis failure: A systematic review and meta-analysis. [PDF]
Zhou J, Li Y, Chen Z, Zhang H.
europepmc +1 more source
An Investigation of the Reasons for Failure in Patients with A Fixed Prosthesis [PDF]
Kavaz, Tuğçe+2 more
openaire +2 more sources