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Studies on the Anatomy and Function of Bone and Joints PDF

161 Pages·1966·4.759 MB·English
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Studies on the Anatomy and Function of Bone and]o ints Edited by F. Gaynor Evans Springer-Verlag Berlin Heidelberg New York 1966 F. Gf!ynor Bvans, Ph. D. Department of Anato,,!-v The University of Michigan School of Medicine Ann Arbor, Michi.gall, U. S. A. Symposium organized with the financial assistance of the Council for International Organi zation of Medical Sciences, an Organization subsidized by the World Health Organization and UNESCO. ISBN-13: 978-3-642-99911-6 e-ISBN-13: 978-3-642-99909-3 DOl: 10.1007/978-3-642-99909-3 All rights, especially that of tra,nslation into foreign languages. reserved. It is also forbidden to reproduce this book, either whole or in part, by photomcchanical means (photostat, microfilm and/or microcard) or by other procedure without written permission from Springer-Verlag. © by Springer-Verlag Berlin· Heidelberg 1966. Library of Congress Catalog Card Number 66-23507. Softcover reprint of the hardcover 1st edition 1966 The usc of general descriptive names, trade names, trade marks, ctc. in this publication, even if the former arc not especially i dcntificd, is flot to be taken as a sign that such names, as understood by the Trade Marks and Merchandise Marks Act, may accordingly be used freely hy anyone. Title No. 1372. Preface The various chapters of this monograph were originally presented as papers in a Symposium on Joints and Bones which the editor organized for the VIII Inter national Congress of Anatomists held in Wiesbaden, Germany in August 1965. Each chapter represents original research on the structure and/or function of joints and bones. Preparing the manuscripts of these papers for publication required more time than originally anticipated and the editor hereby acknowledges his sincere appre ciation to the various authors for their help and patience. He also wants to express his special thanks to Mrs. ANTOINETTE CATRON, his editorial assistant, without whose help the task would still be unfinished. The interest and assistance of the staff of Springer-Verlag in the publication of this monograph is also greatly appreciated. Ann Arbor, Michigan, USA. February 1966 F. GAYNOR EVANS Contents Electron Microscopy of Normal Synovial Membrane. D. V. DAVIES, and A. J. PALFREY .............................. 1 Biomechanics and Functional Adaption of Tendons and Joint Ligaments. A. VnDIK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 17 Dynamic Considerations in Load Bearing Bones with Special Reference to Osteosynthesis and Articular Cartilage. J. M. ZAREK .. . . . . . . . 40 Intravital Measurements of Forces Acting on the Hip-Joint. N. RYDELL. .. 52 The Ergonomic Aspects of Articular Mechanics. M. A. MACCONAILL . . . . 69 A Longitudinal Vital Staining Method for the Study of Apposition in Bone. M. ]. BAER, and]. L. ACKERMAN. . . . . . . . . . . . . . . . . . . . 81 An Evaluation of the Use of Bone Histology in Forensic Medicine and Anthro pology. D. H. ENLOW. . . . . . . . . . . . . . . . . . . . . . . . . 93 Evaluation of Skeletal Impacts of Human Cadavers. H. R. LISSNER, and V. L. ROBERTS .............................. 113 The Tensile Properties of Single Osteons Studied Using a Microwave Extensi- meter. A. ASCENZI, E. BONUCCI, and A. CHECCUCCI. . 121 Physical and Histological Differences Between Human Fibular and Femoral Compact Bone. F. G. EVANS and S. BANG . . . . . . . . . . 142 Contributors ACKERMAN, JAMES L., D.D.S., National Institutes of Health, National Institute of Dental Research, Oral Medicine and Surgery Branch, Oral and Pharyngeal Develop ment Section, Bethesda, Maryland. Present address: Assistant Professor of Ortho dontic Research, School of Dentistry, Fairleigh Dickinson University, Teaneck, New Jersey, U.S.A. As CEl"-':ZI , ANTONIO, M.D., Professor of Morbid Anatomy, Institute of Morbid Anatomy, University of Pisa, Pisa, Italy. BAER, MELVYN j., Ph.D., National Institutes of Health, National Institute of Dental Research, Oral .Medicine and Surgery Branch, Oral and Pharyngeal Development Section, Bethesda, :Maryland. Present address: Professor of Oral Biology, School of Dentistry, University of Detroit, Detroit, Michigan, U.S.A. BANG, SEONG, D.D.S., Research Assistant, Department of Anatomy, The University of Michigan, Ann Arbor, Michigan, U.S.A. BONUCCI, E., M.D., Assistant Professor of Morbid Anatomy, Institute of Morbid Anatomy, University of Pisa, Pisa, Italy. CHECCUCCI, A., M.D., Researcher of the Italian National Research Council, Institute of Physics, University of Pisa, Pisa, Italy. DAVIES, D. V., M.D., Professor and Chairman, Department of Anatomy, St. Thomas' Hospital Medical School, London, England. ENLOW, DONALD H., Ph.D., Associate Professor, Department of Anatomy, The University of Michigan, Ann Arbor, Michigan, U.S.A. EVANS, F. GAYNOR, Ph.D., Professor, Department of Anatomy, The University of Michigan, Ann Arbor, Michigan, U.S.A. LISSNER, HERBERT R., M.S., Professor and Chairman, Department of Engineering Mechanics, Wayne State University, Detroit, Michigan, U.S.A. (Deceased). MACCONAILL, MICHAEL A., M.D., Professor and Chairman, Department of Anatomy, University College, Cork, Ireland. PALFREY, A. j., M. A., Senior Lecturer, Department of Anatomy, St. Thomas' Hospital Medical School, London, England. ROBERTS, VERNE L., Ph.D., Associate Professor, Department of Engineering Me chanics and Department of Neurosurgery, Wayne State University, Detroit, Michi gan, U.S.A. RYDELL, NILS, M. D., Docent, Department of Orthopaedic Surgery, Universit\· of Gothenburg, Gothenburg, Sweden. VIII Contributors VUDIK, ANDRUS, M.D., Instructor, Department of Anatomy, University of Gothen burg, Gothenburg, Sweden. ZAREK, J. M., Ph.D., Professor and Chairman, Department of Mechanical Engineer ing, Battersea College of Technology, Proposed University of Surrey, London, England. Electron Microscopy of Normal Synovial Membrane D. V. Davies and A. J. Palfrey The structure of normal synovial membrane as seen under the electron micro scope is reported for human material by BARLAND, NOVIKOFF and HAMERMAN (1962) and for rabbit synovial membrane by HYDE (1964). It has also been studied in the guinea-pig by WYLLIE, MORE and HAUST (1964), whilst LANGER and HUTH (1960) report its structure in calf, dog and guinea-pig. All these observations have been made on material fixed with osmic acid. The more recently introduced aldehyde fixatives have the great advantage that they do not inactivate all the cell enzymes, but some differences in morphology have been reported in other tissues (SABATINI, BENSCH and BARRNETT, 1962 and 1963; PALFREY and DAVIES, 1966). This paper reports the appearances of normal rabbit synovial membrane after fixation with glutaraldehyde. Materials and Methods Synovial membrane was obtained from the knee joint of three male rabbits, aged between three and six months. Under a general anaesthetic 1 ml of fixative was injected into the cavity of the joint; one minute later the cavity was opened and portions of the synovial membrane removed from the region distal to the patella and deep to the ligamentum patellae. The fixative was a 3 % solution of glutaraldehyde in a phosphate buffer, which was adjusted to a pH of 7.3 by the dropwise addition of a solution of sodium hydroxide (SABATINI et al., 1963); to this preparation a solution of calcium chloride (0.1 M) was added drop by drop until the precipitate had redissolved (MEEK, personal communication). The speci mens were cut up in the fixative until no dimension of the block was greater than 1 mm; they remained in fixative for periods of 4 hours (two specimens) or for 1, 3, or 7 days. After fixation the specimens were washed in four changes of a 10% solution of sucrose in the phosphate buffer for ten minutes, and were then treated with a 2 % unbuffered solution of osmium tetroxide for 2 hours. The blocks were dehydrated with ethyl alcohol, passed through propylene oxide and embedded in araldite. Sections for light microscopy were cut at a thickness of 1 [J. from the araldite block, and these were stained with Azur II-methylene blue (RICHARDSON, JARETT and FINKE, 1960). Thin sections were cut with a Leitz ultramicrotome at a thickness of about 500 A and mounted on uncoated copper grids. The mounted sections were stained in a saturated solution of uranyl acetate in absolute methyl alcohol for 1 hour (BARNETT and PALFREY, 1965), before being examined in an A.E.!. electron microscope. 1 Evans, Bone and Joints 2 D. V. DAVIES and A.]. PALFREY: Results Light Microscopy Under the light microscope the different blocks taken from similar regions of the same joint in the three different animals vary widely in their appearance. In some the intimal layer is only one cell thick, but in others as many as three or four layers are found. In some blocks this layer lies directly upon adipose tissue, though many blood vessels are seen immediately beneath the intimal layer. In other blocks there is a well marked zone of loose connective tissue amongst which are many prominent blood vessels. This subintimal layer contains a variable number of connective tissue cells, some of which have the form of fibroblasts and fibrocytes, but others are monocytes; in other regions groups of lymphoid cells are found. Many sections show extravasated blood cells, particularly on the surface of the membrane, and less frequently in the substance of the synovial membrane. Electron Microscopy When the membrane is examined with the electron microscope the synovial cells are again seen either as a single layer or as a number oflayers of cells (Figs. 1-4); the cells which form the surface layer are not in contact with one another but are separated by gaps which vary from as little as 600 A to as much as 1 fL; in no in- Fig. 1. An electron micrograph of the intimal and subintimal layers of the synovial mem brane, showing flattened ill-apposed surface cells with some intervening amorphous material, and a capillary showing fenestrae in the wall. Most cells contain a number of dense bodies. X 7,600 Electron Microscopy of Normal Synovial Membrane 3 stance is the gap as small as 200 A, nor is any form of nexus seen between adjaceul cells. These surface cells are not arranged on a basement membrane, but on a zone of material some 0.4 fl. in depth (Fig. 4); this contains a few collagen fibres, between 250 and 450 A in diameter, but which exhibit no periodicity when seen in length. The remainder of this zone is filled with moderately dense granular material which is concentrated in the zone containing few collagen fibres, but extends for a further 0.4 fl. amongst the most superficial part of the general collagen framework. Fig. 2. Intimal layer of the synovial membrane with two cells in which rough surfaced endoplasmic reticulum can be seen. The larger cell shows several mitochondria, Golgi apparatus, and three fat droplets. The amorphous material at the surface is well shown. X 10,500 Surface Cells The plasma membrane of the surface cells is generally smooth and only occa sionally shows filopodia, though such a process is seen in most of these cells (Fig. 3). The filopodia are sinous in form, up to 1 fl. in length, and vary in width from 600 to 1000 A; they are sometimes wider where they change direction, but have bulbous segments which may be terminal. Pinocytotic vesicles, ovoid in form and 900 to 1200 A in diameter, are found in some cells, and when present are often numerous; they occur with equal frequency on all surfaces of the cells. I" 4 D. V. DAVIES and A.]. PALFREY: The nucleus is somewhat irregular in form, and is limited by the usual double membrane. The outer lamina is clearly seen but is thin (70 A) while the inner lamina is much thicker - at least 300 A and may appear even thicker if the chromatin is condensed on its deep surface. The 120 A interval between the laminae is electron translucent; there are a few areas in which the gap is widened to 600 A, but these regions show no dense material between the laminae. The endoplasmic reticulum occurs in short lengths, seldom more than 1 fL, and often branches (Fig. 2). The membranes are poorly visualised and appear to be Fig. 3. Surface cell showing processes, an abundance of large vesicles, and pinocytotic vesicles, particularly on its deep surface. X 19,000 40 A thick; they carry only small numbers of ribonucleoprotein particles, which are about 170 A in diameter, and are clearly seen. The interval between the members of a membrane pair is usually about 450 A and is filled with granular material which appears more dense than the surrounding cytoplasm. This interval is widened to as much as 1500 A in some places; at the ends of the lengths of reticulum the two members of the pair are often continuous with one another to form a vesicle some 1000 A in diameter. The contents of the vesicle are denser than the material along the length of that section of the reticulum. Many free ribosomes are found in the cytoplasm of some of these cells, but no polyribosomes are identified. In some cells the endoplasmic reticulum is a very prominent feature and the pairs of laminae are arranged concentrically so that the cells are similar in appearance to plasma cells. Mitochondria are scanty, ovoid in shape, and between 0.4 and 0.8 fL in diameter (Fig. 6). They show clear central areas with sparse irregular cristae which project

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