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Transcript of Injury bio
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Trauma Biomechanics
Third Edition
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ISBN 978-3-642-03712-2 e-ISBN 978-3-642-03713-9DOI 10.1007/978-3-642-03713-9Springer Heidelberg Dordrecht London New York
Library of Congress Control Number: 2009938113
c Springer-Verlag Berlin Heidelberg 2010This work is subject to copyright. All rights are reserved, whether the whole or part of the material isconcerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting,reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publicationor parts thereof is permitted only under the provisions of the German Copyright Law of September 9,1965, in its current version, and permission for use must always be obtained from Springer. Violationsare liable to prosecution under the German Copyright Law.The use of general descriptive names, registered names, trademarks, etc. in this publication does notimply, even in the absence of a specific statement, that such names are exempt from the relevant protectivelaws and regulations and therefore free for general use.
Cover design:deblik, Berlin
Printed on acid-free paper
Springer is part of Springer Science+Business Media (www.springer.com)
Dr. Markus H. Muser
Prof. Dr. med. Felix WalzAGUWinkelriedstrasse 27CH-8006 Zurich
PD Dr. Kai-Uwe Schmitt
Institute for Biomedical Engineering
ETZ F90
Prof. Dr. Peter F. Niederer (emeritiert)
University and ETH Zurich
Gloriastrasse 35CH-8092 Zurich
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Preface
Injury is a leading cause of death, hospitalisation and disability world-wide.
The World Health Organization predicts that unintentional injuries arising
from road traffic incidents will rise to take third place in the rank order of
international disease burden by the year 2030. Although these statistics and
the associated economic costs are staggering, the effect of unintentional
injury and death from trauma is more apparent, and more disturbing, when
seen personally. By a young age, nearly everyone in the world, regardless
of region, wealth or education, has had a relative or someone that they
know killed or disabled in an "accident". The quality of life and financial
effects on the injured person and their families and friends are plainly
evident and clearly devastating. Many unintentional injuries are in realitynot accidents; they could be prevented with changes in policy, education, or
through improved safety devices. Arrayed against these preventable
injuries, a diverse group of injury prevention researchers and practitioners
work to decrease the incidence of unintentional injury.
In trauma biomechanics, the principles of mechanics are used to
understand how injuries happen at the level of the bones, joints, organs and
tissues of the body. This knowledge is central in the development,
characterization and improvement of safety devices such as helmets andseat belts and in the safe design of vehicles and equipment used for
transportation, occupation and recreation. The field of trauma biomechanics
is highly interdisciplinary, with engineers and physicists being centrally
involved with medical practitioners and many other experts. This book,
Trauma Biomechanics, is organized as a short primer of this subject and it
provides a logical overview of the field. It is written to be accessible to a
range of students or practitioners, while still providing considerable detail
in each section. Each chapter contains plentiful and up-to-date references to
guide readers who require more information on a particular topic.In contrast to the relative abundance of texts that describe basic
biomechanics, sports biomechanics, gait analysis and orthopaedic
biomechanics this is one of only two or three texts focused on trauma
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biomechanics that I am aware of. I have used a previous version of the book
as a required text for a combined senior undergraduate- and graduate- level
Mechanical Engineering class called the "Fundamentals of Injury
Biomechanics" at the University of British Columbia. The studentscommented positively on the layout and accessibility of the book and they
used it as a key reference in the assigned problems and project work in the
class. I think the short primer structure of the book helped to make it
accessible to the students. It is possible to start reading at the beginning of
any chapter and quickly come up to speed with the most important basic
knowledge about the anatomy, tolerance and injury prevention techniques
for that region of the body. This is of great utility for students but also for
people working in injury research contexts were they can be asked to
rapidly switch their focus from injury in one area of the body or from one
mechanism to another. This can occur not only while studying in university
but also in many industrial and academic research contexts. For example,
this is frequently required of people working on government-sponsored
injury reconstruction teams or who are engaged in reconstructing injuries in
the litigation context.
I recommend this book as a key basic resource for anyone interested in
injury prevention. Everyone, from graduate students working in anacademic injury biomechanics setting to engineers, physicists, clinicians,
surgeons, kinesiologists, biologists, statisticians and social scientists
working in the broad field of injury prevention, frequently has questions
about how injuries happen in various parts of the body. This book is an
essential and accessible resource to anyone with these questions.
Peter A. Cripton
Associate Professor of Mechanical Engineering
and Associate Faculty Member of the Department of Orthopaedics
The University of British Columbia
VI Preface
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Preface - 2nd edition
Everyday, more than 140000 people are injured, 3000 killed, and 15000
disabled for life everyday on the world's roads. Likewise, sports related
injuries are numerous and have a significant socio-economic impact. The
field of trauma biomechanics, or injury biomechanics, uses the principles of
mechanics to study the response and tolerance level of biological tissues
under extreme loading conditions. Through an understanding of mechanical
factors that influence the function and structure of human tissues,
countermeasures can be developed to alleviate or even eliminate such
injuries.
This book, Trauma-Biomechanics, surveys a wide variety of topics ininjury biomechanics including anatomy, injury classification, injury
mechanism, and injury criteria. It is the first collection I am aware of that
lists regional injury reference values, or injury criterion, either currently in
use or proposed by both U.S. and European communities. Although the
book is meant to be an introduction for medical doctors and engineers who
are beginners in the field of injury biomechanics, sufficient references are
provided for those who wish to conduct further research, and even
established researchers will find it useful as a reference for finding thebiomechanical background of each proposed injury mechanism and injury
criterion. As more people become aware of and understand this subject, it
will someday lead to better mitigation and prevention of automotive and
sports related injuries. I like this book very much and believe that you will
find the same.
King H. Yang
Professor of Biomedical Engineeringand Mechanical Engineering
Director of Bioengineering Center
Wayne State University
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Acknowledgements
The positive feedback that we have obtained from students and colleagues
and in particular from our readers of the previous editions was the major
source of motivation to tackle this third edition. Thank you! We highly
appreciate the various suggestions which were of great help to further
develop the book.
In the present third edition the contents were updated with the latest
knowledge and references and known mistakes and typos were corrected
(surely adding a few new ones). As a particularly important addition for
students, exercises of various levels of complexity were added.
Nevertheless, we kept the original focus of the book. It primarily offers an
introductory overview on different aspects of trauma biomechanics, butalso serves as a quick reference for experts.
Thus we hope to provide a suitable starting point for sharing our
excitement and enthusiasm about this field of biomechanics research.
Kai-Uwe Schmitt, Peter Niederer, Markus Muser, Felix Walz
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XII Contents
8.7 Exercises.........................................................................................226
8.8 References .....................................................................................227
9 Impairment and injuries resulting from chronic mechanical exposure...2319.1 Occupational health ........................................................................235
9.2 Sports..............................................................................................237
9.2.1 Non contact sports ....................................................................237
9.2.2 Contact sports ...........................................................................239
9.3 Household work .............................................................................239
9.4 Summary ........................................................................................239
9.5 References ......................................................................................240
10 Solutions to exercises ..........................................................................243
11 Subject index .......................................................................................247