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Metal On Metal Bearings
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Book Synopsis Metal-on-Metal Bearings by : Lynne C. Jones
Download or read book Metal-on-Metal Bearings written by Lynne C. Jones and published by Springer Science & Business Media. This book was released on 2013-10-29 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the background and significance of the factors potentially influencing the clinical and biological outcomes of metal-on-metal hip implants. Metal-on-metal bearings were introduced and evaluated as an alternative to other bearing couples, particularly metal-on-polyethylene, due to their enhanced wear resistance as determined in laboratory testing. Initially, reports of short-term clinical outcomes were favorable and an increasing number of metal-on-metal prostheses were implanted. Subsequently, isolated case findings describing adverse tissue responses around the articulation became the harbinger of an increasing number of reports describing pseudotumors and other significant lymphocytic-based responses associated with metal-on-metal prostheses. Questions have been raised as to whether this is an implant, design, or patient-specific response. The reasons why some patients have a negative biological response and pathology while others do not remain to be determined, but tens of thousands of patients in the US, the UK, and around the world are considered to be at risk. Leading researchers and clinicians describe the issues related to the nature of the biological and pathological responses and the protocols that should be followed to determine if an adverse response is occurring. This book is essential reading for researchers, engineers, and orthopaedic surgeons who are involved in the design, evaluation, and implantation of metal-on-metal prostheses.
Book Synopsis Prevalence of Metal-on-Metal Bearings in the United States by : Kevin L. Ong
Download or read book Prevalence of Metal-on-Metal Bearings in the United States written by Kevin L. Ong and published by . This book was released on 2013 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to describe actual usage patterns for metal-on-metal (MOM) bearings in the United States using a nationally representative database. The 2005-2009 nationwide inpatient sample (NIS), in combination with the 2009-2010 state inpatient databases (SIDs), was employed to identify primary total hip arthroplasty (THA), revision THA, and resurfacing hip arthroplasty (RHA) patients implanted with a MOM bearing using ICD-9-CM codes. The MOM patient population was characterized by gender, age, race, U.S. Census region, hospital characteristics, and insurance coverage. The prevalence of MOM bearing usage was estimated between 2000 and 2010. Between 2005 and 2010, MOM bearing usage in the United States ranged between from 32 % and 40 % of primary THAs and from 26 % and 32 % of revision THAs. Utilization of MOM bearing types in primary/revision THA and RHA peaked in 2008. By 2010, 755 000 patients were estimated to be implanted with MOM bearings in the United States between 2000 and 2010, we estimated that 83.7 % of MOM bearings in the United States were implanted during primary THA procedures, 11.7 % during revision THA, and the remaining 4.6 % during RHA. Our research demonstrates that the prevalence of MOM increased substantially up to a high water mark in 2008. Despite uncertain indications for use, MOM bearings were used extensively in female and elderly patients.
Book Synopsis Total Hip Arthroplasty by : Karl Knahr
Download or read book Total Hip Arthroplasty written by Karl Knahr and published by Springer Science & Business Media. This book was released on 2012-04-05 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the 2011 EFORT Congress in Copenhagen, many interesting topics relating to tribology in total hip arthroplasty were discussed during a special day devoted entirely to the subject. EFORT decided that, given the wide interest in these discussions, publication of the presentations would be warmly welcomed by all fellow professionals who were unable to attend. This book is the result. It provides detailed information on currently used articulating materials and their wear performance. Clinical outcomes are discussed, and important new frontiers are carefully considered. The book will be of interest both to novices who want to learn more about the field and to experienced orthopaedic surgeons wishing to keep abreast of the latest developments.
Book Synopsis Metal-on-Metal and Other Bearing Trends Among Fellows of the AAOS by : Kenneth L. Urish
Download or read book Metal-on-Metal and Other Bearing Trends Among Fellows of the AAOS written by Kenneth L. Urish and published by . This book was released on 2013 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: To determine what the trends for the use of total hip arthroplasty bearings have been in the United States and how the Food and Drug Administration (FDA) warning on the use of metal on metal bearings have affected surgeon's decisions concerning their use, a survey was performed on the fellows of the American Academy of Orthopaedic Surgeons (AAOS). Two thousand randomly selected practicing fellows were invited to take part in the AAOS 2010 survey. Of those invited, 170 (8.5 % response rate) completed the survey. Confidence interval (CI) values at 95 % were provided for each survey item. There were no significant differences between invitees and respondents in terms of practice setting and gender. The majority of respondents (79.2 %) match their patients' function/activity to the bearing surface used in total hip arthroplasty (THA). Respondents mostly use peer reviewed publications (92.9 %), and personal experience (81.7 %) when making a decision on bearing use in THA. Almost 80 % of the respondents indicated that their hospitals do not limit their choice of implants. Cross-linked polyethylene has been the most used type of bearing surface before 2010 (74.80 %) and currently (78.62 %). Metal-on-metal and ceramic-on-ceramic use decreased; however, there are no significant differences between the uses of all types of bearings before 2010 and currently. Given the current debated issues, 75.6 % of respondents are less likely to use metal-on-metal bearing in the future; 22 % are not affected. The majority of respondents (70.3 %) indicated that ceramic-on-ceramic bearing have fewer wear particles. More than half (56.7 %) indicated that metal-on-metal (MoM) has the longest survivorship. This survey indicated that surgeons responded that their use of MoM bearings will likely decrease in the future but the numbers in this survey show no significant difference in their use before and after the FDA warning for MoM bearings. The survey does show that most surgeons believe that they will have less choice as directed by their hospital or insurance companies in their bearing use in the near future due to health economics and the efforts to decrease cost. Only time will tell if surgeons who indicate the use of MoM will decrease over time actually comes to fruition or if the use of MoM will continue at its current rate. This survey indicates that although the trend shows a decrease in their use, it was not statistically significant.
Book Synopsis Complications of Total Hip Arthroplasty by : Richard H. Rothman
Download or read book Complications of Total Hip Arthroplasty written by Richard H. Rothman and published by W.B. Saunders Company. This book was released on 1988 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bearings and Bearing Metals by : Machinery Publishing Company
Download or read book Bearings and Bearing Metals written by Machinery Publishing Company and published by . This book was released on 1921 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceeding of the Panel Discussion on Liquid Metal Bearings, Held Under the Auspices of the Mechanical Working Group, Interagency Advanced Power Group, 9 October, 1962 at the Power Information Center, University of Pennsylvania, Philadelphia, Pa by :
Download or read book Proceeding of the Panel Discussion on Liquid Metal Bearings, Held Under the Auspices of the Mechanical Working Group, Interagency Advanced Power Group, 9 October, 1962 at the Power Information Center, University of Pennsylvania, Philadelphia, Pa written by and published by . This book was released on 1962 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bearing Metals written by Richard Ruedy and published by . This book was released on 1942 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wear and Lubrication of Metal-metal Bearings for Total Hip Arthroplasty by :
Download or read book Wear and Lubrication of Metal-metal Bearings for Total Hip Arthroplasty written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Advances in Arthroplasty by : Samo Fokter
Download or read book Recent Advances in Arthroplasty written by Samo Fokter and published by BoD – Books on Demand. This book was released on 2012-01-27 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book was to offer an overview of recent insights into the current state of arthroplasty. The tremendous long term success of Sir Charnley's total hip arthroplasty has encouraged many researchers to treat pain, improve function and create solutions for higher quality of life. Indeed and as described in a special chapter of this book, arthroplasty is an emerging field in the joints of upper extremity and spine. However, there are inborn complications in any foreign design brought to the human body. First, in the chapter on infections we endeavor to provide a comprehensive, up-to-date analysis and description of the management of this difficult problem. Second, the immune system is faced with a strange material coming in huge amounts of micro-particles from the tribology code. Therefore, great attention to the problem of aseptic loosening has been addressed in special chapters on loosening and on materials currently available for arthroplasty.
Book Synopsis Personalized Hip and Knee Joint Replacement by : Charles Rivière
Download or read book Personalized Hip and Knee Joint Replacement written by Charles Rivière and published by Springer Nature. This book was released on 2020-06-30 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book describes and illustrates the surgical techniques, implants, and technologies used for the purpose of personalized implantation of hip and knee components. This new and flourishing treatment philosophy offers important benefits over conventional systematic techniques, including component positioning appropriate to individual anatomy, improved surgical reproducibility and prosthetic performance, and a reduction in complications. The techniques described in the book aim to reproduce patients’ native anatomy and physiological joint laxity, thereby improving the prosthetic hip/knee kinematics and functional outcomes in the quest of the forgotten joint. They include kinematically aligned total knee/total hip arthroplasty, partial knee replacement, and hip resurfacing. The relevance of available and emerging technological tools for these personalized approaches is also explained, with coverage of, for example, robotics, computer-assisted surgery, and augmented reality. Contributions from surgeons who are considered world leaders in diverse fields of this novel surgical philosophy make this open access book will invaluable to a wide readership, from trainees at all levels to consultants practicing lower limb surgery
Book Synopsis Bearings And Bearing Metals by : Anon
Download or read book Bearings And Bearing Metals written by Anon and published by Read Books Ltd. This book was released on 2013-04-16 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few subjects related to the design or construction of machinery are of greater importance than the subject of bearings. All classes of mechanisms have bearings of some kind and bearings that are properly designed and constructed are a necessity. As every experienced mechanic knows, a poor bearing may tie up a machine or even cause an entire plant to shut down temporarily. Owing to the importance of this subject, designers and mechanics in general should understand the fundamental principles governing bearing design and should know what approved types are in common use on different classes of machinery. This treatise deals exclusively with plain bearings, ball and roller bearings being covered in another book of this series. The types of plain bearings illustrated in a connection with the following chapters were selected to show how designs are modified to suit different conditions, and also practical methods of arranging bearings to insure adequate lubrication and thorough protection against the entrance of any foreign material liable to injure the bearing surfaces. The designs illustrated were taken from actual practice and have proved satisfactory when properly constructed and applied. This treatise contains, in addition to the features mentioned, condensed information on corn- positions of various bearing metals, their properties, the classes of service to which different bearing alloys are adapted, and the general methods of procedure in designing plain bearings to meet different service conditions.
Book Synopsis Bioceramics and Alternative Bearings in Joint Arthroplasty by : James A. D'Antonio
Download or read book Bioceramics and Alternative Bearings in Joint Arthroplasty written by James A. D'Antonio and published by Springer Science & Business Media. This book was released on 2006-03-10 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dear Colleague and Participant in Bioceramics and Alternative Bearings In Joint Arthroplasty: 10*" International BIOLOX® Symposium We are once again very proud that we are able to present to you the proceedings of the Symposiunn as part of your registration materials. This group accomplishment has been made possible by the superb cooperation received from the speakers in sending us their manuscripts on a timely basis as well as by the supporting staff at both CeramTec and at the Publishing House in executing all of the details needed. We specially extend our most heartfelt thanks to the Scientific Committee for their assistance in evaluating and selecting the submissions as well as developing the Symposium program. We are more convinced than ever that the proceedings of this Symposium are a continuation of CeramTec's tradition of providing all members of the orthopedic surgical community with a valuable addition to your reference libraries. We hope that this book will present you with the latest and most up to date source of scientific and clinical information regarding the use of ceramics and other alternative bearings in joint replacement surgery.
Download or read book Bearing Steels written by J. J. C. Hoo and published by ASTM International. This book was released on 1975 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Accelerated Life Testing of Porous Metal Bearings by : Stephen Joseph Peterson
Download or read book Accelerated Life Testing of Porous Metal Bearings written by Stephen Joseph Peterson and published by . This book was released on 1975 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis World Tribology Forum in Arthroplasty by : Claude Rieker
Download or read book World Tribology Forum in Arthroplasty written by Claude Rieker and published by . This book was released on 2001 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioceramics and Alternative Bearings in Joint Arthroplasty by : Jun-Dong Chang
Download or read book Bioceramics and Alternative Bearings in Joint Arthroplasty written by Jun-Dong Chang and published by Springer Science & Business Media. This book was released on 2007-10-08 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings book of the Biolox Symposium in Seoul is composed of 10 sessions and plenary lectures of the most current knowledge available in the use of Bioceramics and alternative bearings. More than 50 speakers with world-famous reputations from 12 countries cover 52 topics on recent developments in Bioceramic and alternative bearings in arthroplasty.
