Image #1 -- Normal patellar tendon: collagen fibers oriented in an organized linear fashion. (Collagen is the principal protein of tendons, ligaments, and bones and in the normal state has great tensile strength.)
Image #2 -- Injured patellar tendon: disrupted collagen fibers with wavy orientation, fragmentation, and interspersed blood vessels. There is no inflammation present.
It is not known how eccentric exercise heals patellar tendinosis or reduces knee pain. Theoretical mechanisms include the possible remodeling of tendon, strengthening of tendon, and the elimination of the small blood vessels that occur in tendons affected by tendinosis.
(Images and commentary courtesy of Gréta Pathology. Slides prepared with hematoxylin & eosin stain.)
1 comment:
This website is great thanks alot
both my knees look like picture 2 :(
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