Premium
Etiology and pathophysiology of chronic tendon disorders in sports
Author(s) -
Kannus P.
Publication year - 1997
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/j.1600-0838.1997.tb00123.x
Subject(s) - microtrauma , medicine , tendinitis , tenosynovitis , bursitis , tendon , tendinopathy , tendinosis , etiology , sports medicine , achilles tendon , physical therapy , physical medicine and rehabilitation , surgery , pathology
In sports medicine, a chronic overuse injury is defined as a long‐standing or recurring orthopedic problem and pain in the musculoskeletal system, which started during exertion due to repetitive tissue microtrauma (1). Repetitive microtrauma, which is basically repeated exposure of the musculoskeletal tissue to low‐magnitude forces, results in injury at the microscopic level, and no single acute trauma is normally involved in the pathogenesis of an overuse injury. In chronic tendon disorders, ‘overuse’implies that the tendon has been strained repeatedly to 44% strain until unable to endure further tension, whereupon injury occurs (2). The structure of the tendon is disrupted micro‐ or macroscopically by this repetitivestrain, i.e. collagen fibers begin to slide past one another, causing breakage of their cross‐linked structure, and denaturate; inflammation, edema and pain result. Thus, tendinitis, peritendinitis, tenosynovitis, insertion tendinitis, tendinous bursitis or apophysitis is the earliest clinically recognizable manifestation of overuse tendon injury (3).