[Biomechanical studies of rabbit tendons after repeated injections of corticosteroids]

The purpose of investigation was to determine and compare the mechanical properties of rabbit tendons, injected with celestone as well as noninjected. The authors accepted the dynamic module during cyclic loading and the damaging tension reduced to an unit of body weight of the rabbit. As a result of the experimental biochemical studies they found that tendons, injected with corticosteroids, presented reduced strength and increased deformity in comparison with the noninjected tendons. Histologic examinations, performed additionaly, revealed that the functional properties of the tendons, injected with corticosteroids, were altered before the occurrence of structural changes in the tendinous tissue.