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ENTHESITIS-TRAUMATIC DISEASE OF INSERTIONS

ENTHESITIS-TRAUMATIC DISEASE OF INSERTIONS The human locomotor apparatus consists of an active motor system (muscles) and a passive system of transmission (bones and joints) connected by an intermediate formation, the muscular and tendinous insertions. The insertions must be differentiated from the other two systems both anatomically and functionally. These insertions are effected in three principal manners: (1) inlaid piercing into the bony substance through periosteum (tendinous insertion), (2) reinforcing fibrous bundles extending from tendon to ligaments, joint capsule, or other tendons (aponeurosis), and (3) direct adhesion to periosteum of the bone (muscular or tendinomuscular attachment). The locations of these attachments are therefore spots where tissues of common mesenchymal origin, but often poorly differentiated, meet. Possibly for this reason, insertions show a peculiar reaction to irritative stimuli, often characterized by metaplastic phenomena. Most frequently these stimuli are of traumatic, particularly microtraumatic, origin. The continually recurring concentration of muscle stress at these points provokes a reaction http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA American Medical Association

ENTHESITIS-TRAUMATIC DISEASE OF INSERTIONS

JAMA , Volume 169 (3) – Jan 17, 1959

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Publisher
American Medical Association
Copyright
Copyright © 1959 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0098-7484
eISSN
1538-3598
DOI
10.1001/jama.1959.73000200002011a
Publisher site
See Article on Publisher Site

Abstract

The human locomotor apparatus consists of an active motor system (muscles) and a passive system of transmission (bones and joints) connected by an intermediate formation, the muscular and tendinous insertions. The insertions must be differentiated from the other two systems both anatomically and functionally. These insertions are effected in three principal manners: (1) inlaid piercing into the bony substance through periosteum (tendinous insertion), (2) reinforcing fibrous bundles extending from tendon to ligaments, joint capsule, or other tendons (aponeurosis), and (3) direct adhesion to periosteum of the bone (muscular or tendinomuscular attachment). The locations of these attachments are therefore spots where tissues of common mesenchymal origin, but often poorly differentiated, meet. Possibly for this reason, insertions show a peculiar reaction to irritative stimuli, often characterized by metaplastic phenomena. Most frequently these stimuli are of traumatic, particularly microtraumatic, origin. The continually recurring concentration of muscle stress at these points provokes a reaction

Journal

JAMAAmerican Medical Association

Published: Jan 17, 1959

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