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Author: J. Charnley Publisher: Springer Science & Business Media ISBN: 364267013X Category : Medical Languages : en Pages : 383
Book Description
The theme of this work is the application of the engmeermg theory of frictional torque to total hip replacement. The author adhered tenaciously to this theory, involving the use of a small-diameter femoral head, throughout the epoch when the large-diame ter, metal-to-metal design dominated the field. During that considerable period general satisfaction with the early results rendered criticisms of the large-diameter head unwelcome. There was a formidable array of counter criticism: the small head would pierce a film of synovial fluid; the small head would wear the socket too rapidly; the small head would always have a high risk of dislocation; detachment of the trochanter, to achieve precise orientation for the small head, was unacceptable. But all these objections have now been largely overcome. Lubrication of high molecular weight polyethylene (HMWP) on metal is now accepted as being mainly by the boundary regime with thick fluid films playing no part. We now know that HMWP can indeed tolerate the very high stresses imposed by the small head and in tribological theory there may even be some advantage in high stress. Dislocation is now known not to be an automatic sequel to the small head.
Author: J. Charnley Publisher: Springer Science & Business Media ISBN: 364267013X Category : Medical Languages : en Pages : 383
Book Description
The theme of this work is the application of the engmeermg theory of frictional torque to total hip replacement. The author adhered tenaciously to this theory, involving the use of a small-diameter femoral head, throughout the epoch when the large-diame ter, metal-to-metal design dominated the field. During that considerable period general satisfaction with the early results rendered criticisms of the large-diameter head unwelcome. There was a formidable array of counter criticism: the small head would pierce a film of synovial fluid; the small head would wear the socket too rapidly; the small head would always have a high risk of dislocation; detachment of the trochanter, to achieve precise orientation for the small head, was unacceptable. But all these objections have now been largely overcome. Lubrication of high molecular weight polyethylene (HMWP) on metal is now accepted as being mainly by the boundary regime with thick fluid films playing no part. We now know that HMWP can indeed tolerate the very high stresses imposed by the small head and in tribological theory there may even be some advantage in high stress. Dislocation is now known not to be an automatic sequel to the small head.
Author: B.M. Wroblewski Publisher: Springer ISBN: 3319213202 Category : Medical Languages : en Pages : 357
Book Description
This book reviews the principles and concepts underlying Professor Sir John Charnley’s original work Low Friction Arthroplasty of the Hip: Theory and Practice (Springer, 1979) in the light of more extensive clinical experience with results, incidence and indications for revisions highlighted throughout. The studies, combined with the examination of explanted components carried out with the backing of Universities, indicate the avenues for further research and the development and introduction of new ideas into clinical practice. The time span (1962 – 2015) involved has allowed a number of these very long-term studies not only to be brought to conclusion, but has given the benefit of their clinical application with meaningful results. This is not a sudden diversion into new and speculative areas of hip replacement surgery. It is a carefully collected, documented and executed work of the evolution of the Charnley low-frictional torque arthroplasty of the hip based on sound principles, supported by long-term studies with benefits derived.
Author: Charles Rivière Publisher: Springer Nature ISBN: 3030242439 Category : Medical Languages : en Pages : 346
Book Description
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
Author: S Deb Publisher: Elsevier ISBN: 1845695178 Category : Medical Languages : en Pages : 424
Book Description
Bone cements are widely used in orthopaedic applications to anchor implants to existing bone, reconstruct bone and deliver bioactive agents to the body. With an increasing number of bone cements available, it is vital that the correct material is selected for specific clinical procedures. Orthopaedic bone cements reviews the most recent research in this field. Part one discusses the current uses of orthopaedic bone cements with chapters on such topics as hip replacements, verteboplasty and wear particles and osteolysis. Part two reviews materials and types of cement such as acrylic, polymethylmethacrylate and calcium phosphate cements. Chapters in Part three address the mechanical properties of bone cements such as fracture toughness and dynamic creep. The final section examines methods to enhance the properties of bone cements with coverage of themes such as antibiotic loaded bone cements and bioactive cements. With its eminent editor and multidisciplinary team of international contributors, Orthopaedic bone cements is an invaluable reference for materials scientists, medical researchers and all those involved in the development of bone cements for orthopaedic applications and joint replacement. Provides a review of recent research focussing on improving the mechanical and biological performance of bone cements Discusses the current applications of bone cements particularly in hip replacement, verteboplasty and wear particles Reviews types of materials and acrylic, polymethlymethacrylate and calcium phosphate as types of cements
Author: Steffen Breusch Publisher: Springer Science & Business Media ISBN: 9783540289241 Category : Medical Languages : en Pages : 377
Book Description
Cemented Total Hip Arthroplasty (THA) remains one of the most successful procedures in Orthopaedic surgery. It has become very clear that it is the surgical expertise, in particular the quality of the cementing technique, which will affect long-term outcome and success. It is the intention of this book to provide an up-to-date comprehensive assessment of the entire field of cemented THA. Special emphasis has been given to practice-relevant aspects: well-illustrated and detailed operative steps as a practical guideline, a basic science chapter and long-term outcome data are provided. Minimally invasive surgery, modern perioperative management and patient fast tracking are covered. A number of highly respected experts have contributed to this in-depth compilation of the "state of the art" in 2005. This book is written and intended for both, trainees and established arthroplasty surgeons who are dedicated to perform a well-cemented THA.
Author: Paul A. Banaszkiewicz Publisher: Springer Science & Business Media ISBN: 1447154517 Category : Medical Languages : en Pages : 624
Book Description
Orthopedic experts in their field have carefully chosen what they consider to be the key papers in their respective domains. Every paper is carefully described and evaluated by its strengths, weaknesses and its contribution to the field. Papers have been chosen by number of citations, academic importance, articles that have changed our whole way of thinking or that have simply stood the test of time.
Author: J. Wilson Publisher: Springer Science & Business Media ISBN: 9401105413 Category : Technology & Engineering Languages : en Pages : 282
Book Description
Larry L. Hench June Wilson OBJECTIVE Millions of people presently enjoy an improved quality of life due to prostheses which repair, augment or replace parts of their skeletal system: bones, joints, teeth, etc. However, all replacement parts have a finite probability of survival. The goal of this book is to compare the survivability data for various skeletal prosthesis systems. All data derive from previously published clinical studies. Where possible statistical comparisons are made and the reasons for failure are discussed. THE NEED FOR SKELETAL PROSTHESES We are an aging population with more than 100 million people in the U. S. and Europe over the age of 50 years. An unfortunate consequence of aging is a progressive deterioration of the quality of skeletal tissues. From the age of 30 years there is a decrease in bone mass for both men and women (Fig. 1. 1). However, for women it is much greater and between 40 and 60 years of age the rate of deterioration of long bones and vertebrae of women is especially severe due to hormonal changes. By the age of 70 most women will have lost from 35 to 60% of their bone mass. The loss of volume of cancellous or trabecular bone leads to a large decrease in mechanical compressive strength (Fig. 1. 2). The clinical consequence is an increasing incidence of vertebral collapse. Cortical bone decreases in tensile strength with age (Fig. 1.
Author: Peter A. Revell Publisher: Woodhead Publishing ISBN: 0128210834 Category : Technology & Engineering Languages : en Pages : 726
Book Description
The third edition of Joint Replacement Technology provides a thoroughly updated review of recent developments in joint replacement technology. Joint replacement is a standard treatment for joint degradation and has improved the quality of life of millions of patients. Collaboration between clinicians and researchers is critical to its continued success and to meet the rising expectations of patients and surgeons.This edition covers a range of updated and new content, ranging from chapters on materials analysis and selection, to methodologies and techniques used for joint replacement and clinical challenges of replacing specific joints. Key topics include tribological considerations and experiments; challenges in joint bearing surfaces; cementless fixation techniques; healing responses to implants. Clinical challenges and perspectives are covered with the aid of case studies.Thanks to its widespread collaboration and international contributors, Joint Replacement Technology, Third Edition is useful for materials scientists and engineers in both academia and the biomedical industry. Chemists, clinicians, and other researchers in this area will also find this text invaluable. This third edition provides an updated comprehensive review of recent developments in joint replacement technology Reviews a range of specific joints, biological and mechanical issues and fixation techniques Includes revised and new content, such as sections on regulatory affairs, AI techniques and 3D printing
Author: J. Charnley
Author: J. Charnley
Author: B.M. Wroblewski
Author: J. Charnley
Author: Charles Rivière
Author: S Deb
Author: Steffen Breusch
Author: Paul A. Banaszkiewicz
Author: B. M. Wroblewski
Author: J. Wilson
Author: Peter A. Revell