Tendon microtears in an animal model of epicondylitis caused by cyclical loading.
Rempel-DM; Nakama-LH; Barr-A
Trans Annu Meet Orthop Res Soc 2004 Mar; 50:0856
Epicondylitis is a tendon disorder that can occur among athletes and workers who performing repetitive and forceful hand motions. Although it is associated with a high level of disability, the mechanisms of injury are not completely understood. It is commonly assumed that microtears are the initiating event of tendon injury, and microtears have been observed in tendon biopsies and sonograms from patients with overuse injuries. However, the size and distribution of microtears, and their relationship to loading are not well characterized. Knowledge of these factors may be useful in developing primary and secondary preventive measures. Our laboratory has developed an in vivo rabbit model of epicondylits that involves repetitive loading of the flexor digitorum profundus (FDP) muscle. The purpose of this study was to determine whether the size and density of microtears in the FDP tendon were different in a limb exposed to repetitive finger loading in comparison to a control limb.
In-vivo-studies; Injuries; Laboratory-animals; Animal-studies; Muscles; Repetitive-work; Cumulative-trauma-disorders; Cumulative-trauma; Musculoskeletal-system; Musculoskeletal-system-disorders; Biomechanics; Laboratory-animals; Models
University of California, 1301 South 46th Street. Building 163, Richmond, CA 94804
Abstract; Conference/Symposia Proceedings
Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
Transactions of the Annual Meeting of the Orthopaedic Research Society
University of California - San Francisco