نتایج جستجو برای: silica ceramic

تعداد نتایج: 60001  

2014
M. C. Wyatt S. Jesani C. Frampton P. Devane J. G. Horne

OBJECTIVES Our study aimed to examine not only the incidence but also the impact of noise from two types of total hip replacement articulations: ceramic-on-ceramic and ceramic-on-polyethylene. METHODS We performed a case-controlled study comparing subjective and objective questionnaire scores of patients receiving a ceramic-on-ceramic or a ceramic-on-polyethylene total hip replacement by a si...

Journal: :The Indonesian Journal of Occupational Safety and Health 2020

2013
Pieter-Jan De Roo Franky Steenbrugge Martijn Raaijmaakers

We present a case of a 71-year-old woman with unexplained instability of her total hip arthroplasty 12 years after implantation due to loosening of the ceramic component of a sandwich ceramic in polyethylene liner. She experienced in total 2 dislocations in 6 months. These events occurred without fracture of the ceramic liner. Sandwich ceramic liners were introduced with the idea of combining t...

Journal: :Minerals 2022

In this paper, we addressed the chemical composition and main features of a glazed Almohad ceramic assemblage recovered from Puig de Sa Morisca, rural Islamic site located in southwest Mallorca. The glazes were analyzed by means scanning electron microscope equipped with energy-dispersive spectrometer (SEM-EDS). archaeometrical analysis conducted allowed us to characterize technological choices...

Journal: :Orthopedics 2013
Om Prakash Sharma Jasjit Lochab Yaron Berkovich Oleg A Safir Allan E Gross

This article describes a case of severe metallosis in a 67-year-old woman who initially underwent primary total hip arthroplasty with a ceramic-on-ceramic articular bearing. This was subsequently revised to a metal-on-polyethylene articulation due to ceramic liner fracture. She presented with severe hip pain and a pelvic mass. Infective workup was negative. Perforation of the cobalt-chrome femo...

2012
Myung-Sik Park

Early generation ceramic articulations were problematic in terms of ceramic implant fracture and wear. Although the mechanical properties of ceramic material have improved during the last three decades, ceramic component fracture remains an issue. Many authors have reported fractures of the ceramic head, and a few have described ceramic acetabular insert fracture. However, these complications a...

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