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Chronic achilles paratenonitis with tendinosis: An experimental model in the rabbit
Author(s) -
Backman Clas,
Boquist Lennart,
Fridén Jan,
Lorentzon Ronny,
Toolanen Göran
Publication year - 1990
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1002/jor.1100080410
Subject(s) - tendinosis , rabbit (cipher) , achilles tendon , medicine , tendinopathy , surgery , computer science , tendon , computer security
An experimental model for inducing chronic Achilles paratenonitis with tendinosis in the rabbit is presented. Thirteen rabbits were exercised in a kicking machine producing passive flexions and extensions of the ankle joint. Active contractions of the triceps surae muscles were induced by electric stimulation via surface electrodes. The animals were exercised for 5 to 6 weeks, with a rate of 150 flexions and extensions per minute for 2 h, three times a week. Light microscopic examination showed degenerative changes of the tendon, and increased number of capillaries, infiltrates of inflammatory cells, edema, and fibrosis in the paratenon. We conclude that chronic Achilles paratenonitis with tendinosis can be experimentally induced in a standardized manner in rabbits.