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Revista Colombiana de Ciencias Pecuarias

versão impressa ISSN 0120-0690

Resumo

VEGA, Fernando E  e  MARTINEZ, José R. Ultrasound diagnosis of lateral digital extensor muscle, tendon, and synovial sheath alterations in Colombian creole horses with clinical signs of tarsus hyperflexion. Rev Colom Cienc Pecua [online]. 2018, vol.31, n.3, pp.188-195. ISSN 0120-0690.  http://dx.doi.org/10.17533/udea.rccp.v31n3a03.

Background:

Tarsus hyperflexion alters locomotion biomechanics in horses. This alteration is of frequent presentation in the Colombian creole horse (CCH).

Objective:

To determine the echographic alterations of lateral digital extensor (LDE) muscle, tendon, and synovial sheath in CCH with clinical signs of tarsus hyperflexion.

Methods:

Thirty horses were divided into two groups: 15 healthy horses with no history of locomotion defects (Group 1; control), and 15 horses with clinical signs of tarsus hyperflexion (Group 2). A cross-sectional and a longitudinal echocardiographic examination of the LDE muscle and tendon was performed in all horses, and a histopathological study was performed only to Group 2.

Results:

86.7% of the horses showed echographic alterations, with 53.4% showing signs of adhesions in the LDE muscle and tendon in the lateral surface of the hock, where it crosses the tarsus. 33.3% presented increased tendon synovial sheath fluid. 13.3% showed no echographic alterations and 53.3% presented histopathological alterations.

Conclusion:

These findings may be related to the presentation of tarsus hyperflexion that could characterize the classic stringhalt in CCH.

Palavras-chave : Equine; hock hyperflexion; locomotion; mechanical claudication; stenosing tenosynovitis.

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